Overly broad permissions can turn one compromised account into a much larger security problem. Learn how to reduce unnecessary access, review privileges, and apply least privilege across modern Linux systems. Review Linux Privileges×
Stay Secure with the Latest Linux Advisories
Refine advisories
X Clear Filters
Get the latest News and Insights
Get the latest Linux and open source security news straight to your inbox.
Community Poll
Should Linux servers automatically install security updates?
Loading...
Explore Latest Linux Security advisories
We found -1 articles for you...
197
security advisorydenial of servicecriticalDebian 11 DLA-4063-1 Critical: GnuTLS Denial Of Service
Bing Shi discovered that GnuTLS, a portable library which implements the Transport Layer Security and Datagram Transport Layer Security protocols, had inefficient handling of certificate data with a large number of names or name constraints, potentially leading to Denial of . ------------------------------------------------------------------------- Debian LTS Advisory DLA-4063-1
Feb 21, 2025
•Critical
Debian LTS
197
security advisorydebianmemory allocationDebian 10 Buster: DLA-3506-1 Critical DoS Risk in Iperf3
A memory allocation issue was found in iperf3, the Internet Protocol bandwidth measuring tool, that may cause a denial of service when encountering a certain invalid length value in TCP packets. . ------------------------------------------------------------------------- Debian LTS Advisory DLA-3506-1
Jul 25, 2023
•Critical
Debian LTS
91
security advisoryGentooDoSGentoo: GLSA-202212-02 Low: Unbound Denial Of Service Threat
Multiple vulnerabilities have been discovered in Unbound, the worst of which could result in denial of service.. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 202212-02 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - https://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Low Title: Unbound: Multiple Vulnerabilities Date: December 19, 2022 Bugs: #872209, #866881 ID: 202212-02 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======= Multiple vulnerabilities have been discovered in Unbound, the worst of which could result in denial of service. Background ========= Unbound is a validating, recursive, and caching DNS resolver. Affected packages ================ ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 net-dns/unbound < 1.16.3 > = 1.16.3 Description ========== Multiple vulnerabilities have been discovered in Unbound. Please review the CVE identifiers referenced below for details. Impact ===== Please review the referenced CVE identifiers for details. Workaround ========= There is no known workaround at this time. Resolution ========= All Unbound users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose "> =net-dns/unbound-1.16.3" References ========= [ 1 ] CVE-2022-3204 https://nvd.nist.gov/vuln/detail/CVE-2022-3204 [ 2 ] CVE-2022-30698 https://nvd.nist.gov/vuln/detail/CVE-2022-30698 [ 3 ] CVE-2022-30699 https://nvd.nist.gov/vuln/detail/CVE-2022-30699 Availability =========== This GLSA and any updates to it are available for viewing at the Gentoo Security Website: https://security.gentoo.org/glsa/202212-02 Concerns? ======== Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users' machines is of utmost importance to us. Any security concerns should be addressed to
Dec 19, 2022
•Low
Gentoo
98
security advisorydenial of serviceRed HatRed Hat Enterprise Linux 8.0: RHSA-2020-3044-01 Important: D-Bus DoS
An update for dbus is now available for Red Hat Enterprise Linux 8.0 Update Services for SAP Solutions. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score,. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ==================================================================== Red Hat Security Advisory Synopsis: Important: dbus security update Advisory ID: RHSA-2020:3044-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2020:3044 Issue date: 2020-07-21 CVE Names: CVE-2020-12049 ==================================================================== 1. Summary: An update for dbus is now available for Red Hat Enterprise Linux 8.0 Update Services for SAP Solutions. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. 2. Relevant releases/architectures: Red Hat Enterprise Linux AppStream E4S (v. 8.0) - aarch64, ppc64le, s390x, x86_64 Red Hat Enterprise Linux BaseOS E4S (v. 8.0) - aarch64, noarch, ppc64le, s390x, x86_64 3. Description: D-Bus is a system for sending messages between applications. It is used both for the system-wide message bus service, and as a per-user-login-session messaging facility. Security Fix(es): * dbus: denial of service via file descriptor leak (CVE-2020-12049) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. 4. Solution: For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 For the update to take effect, all running instances of dbus-daemon andall running applications using the libdbus library must be restarted, or the system rebooted. 5. Bugs fixed (https://bugzilla.redhat.com/): 1849041 - CVE-2020-12049 dbus: denial of service via file descriptor leak 6. Package List: Red Hat Enterprise Linux AppStream E4S (v.8.0): aarch64: dbus-daemon-debuginfo-1.12.8-8.el8_0.aarch64.rpm dbus-debuginfo-1.12.8-8.el8_0.aarch64.rpm dbus-debugsource-1.12.8-8.el8_0.aarch64.rpm dbus-devel-1.12.8-8.el8_0.aarch64.rpm dbus-libs-debuginfo-1.12.8-8.el8_0.aarch64.rpm dbus-tests-debuginfo-1.12.8-8.el8_0.aarch64.rpm dbus-tools-debuginfo-1.12.8-8.el8_0.aarch64.rpm dbus-x11-1.12.8-8.el8_0.aarch64.rpm dbus-x11-debuginfo-1.12.8-8.el8_0.aarch64.rpm ppc64le: dbus-daemon-debuginfo-1.12.8-8.el8_0.ppc64le.rpm dbus-debuginfo-1.12.8-8.el8_0.ppc64le.rpm dbus-debugsource-1.12.8-8.el8_0.ppc64le.rpm dbus-devel-1.12.8-8.el8_0.ppc64le.rpm dbus-libs-debuginfo-1.12.8-8.el8_0.ppc64le.rpm dbus-tests-debuginfo-1.12.8-8.el8_0.ppc64le.rpm dbus-tools-debuginfo-1.12.8-8.el8_0.ppc64le.rpm dbus-x11-1.12.8-8.el8_0.ppc64le.rpm dbus-x11-debuginfo-1.12.8-8.el8_0.ppc64le.rpm s390x: dbus-daemon-debuginfo-1.12.8-8.el8_0.s390x.rpm dbus-debuginfo-1.12.8-8.el8_0.s390x.rpm dbus-debugsource-1.12.8-8.el8_0.s390x.rpm dbus-devel-1.12.8-8.el8_0.s390x.rpm dbus-libs-debuginfo-1.12.8-8.el8_0.s390x.rpm dbus-tests-debuginfo-1.12.8-8.el8_0.s390x.rpm dbus-tools-debuginfo-1.12.8-8.el8_0.s390x.rpm dbus-x11-1.12.8-8.el8_0.s390x.rpm dbus-x11-debuginfo-1.12.8-8.el8_0.s390x.rpm x86_64: dbus-daemon-debuginfo-1.12.8-8.el8_0.i686.rpm dbus-daemon-debuginfo-1.12.8-8.el8_0.x86_64.rpm dbus-debuginfo-1.12.8-8.el8_0.i686.rpm dbus-debuginfo-1.12.8-8.el8_0.x86_64.rpm dbus-debugsource-1.12.8-8.el8_0.i686.rpm dbus-debugsource-1.12.8-8.el8_0.x86_64.rpm dbus-devel-1.12.8-8.el8_0.i686.rpm dbus-devel-1.12.8-8.el8_0.x86_64.rpm dbus-libs-debuginfo-1.12.8-8.el8_0.i686.rpm dbus-libs-debuginfo-1.12.8-8.el8_0.x86_64.rpm dbus-tests-debuginfo-1.12.8-8.el8_0.i686.rpm dbus-tests-debuginfo-1.12.8-8.el8_0.x86_64.rpm dbus-tools-debuginfo-1.12.8-8.el8_0.i686.rpm dbus-tools-debuginfo-1.12.8-8.el8_0.x86_64.rpm dbus-x11-1.12.8-8.el8_0.x86_64.rpm dbus-x11-debuginfo-1.12.8-8.el8_0.i686.rpm dbus-x11-debuginfo-1.12.8-8.el8_0.x86_64.rpm Red Hat Enterprise Linux BaseOS E4S (v.8.0): Source: dbus-1.12.8-8.el8_0.src.rpm aarch64: dbus-1.12.8-8.el8_0.aarch64.rpm dbus-daemon-1.12.8-8.el8_0.aarch64.rpm dbus-daemon-debuginfo-1.12.8-8.el8_0.aarch64.rpm dbus-debuginfo-1.12.8-8.el8_0.aarch64.rpm dbus-debugsource-1.12.8-8.el8_0.aarch64.rpm dbus-libs-1.12.8-8.el8_0.aarch64.rpm dbus-libs-debuginfo-1.12.8-8.el8_0.aarch64.rpm dbus-tests-debuginfo-1.12.8-8.el8_0.aarch64.rpm dbus-tools-1.12.8-8.el8_0.aarch64.rpm dbus-tools-debuginfo-1.12.8-8.el8_0.aarch64.rpm dbus-x11-debuginfo-1.12.8-8.el8_0.aarch64.rpm noarch: dbus-common-1.12.8-8.el8_0.noarch.rpm ppc64le: dbus-1.12.8-8.el8_0.ppc64le.rpm dbus-daemon-1.12.8-8.el8_0.ppc64le.rpm dbus-daemon-debuginfo-1.12.8-8.el8_0.ppc64le.rpm dbus-debuginfo-1.12.8-8.el8_0.ppc64le.rpm dbus-debugsource-1.12.8-8.el8_0.ppc64le.rpm dbus-libs-1.12.8-8.el8_0.ppc64le.rpm dbus-libs-debuginfo-1.12.8-8.el8_0.ppc64le.rpm dbus-tests-debuginfo-1.12.8-8.el8_0.ppc64le.rpm dbus-tools-1.12.8-8.el8_0.ppc64le.rpm dbus-tools-debuginfo-1.12.8-8.el8_0.ppc64le.rpm dbus-x11-debuginfo-1.12.8-8.el8_0.ppc64le.rpm s390x: dbus-1.12.8-8.el8_0.s390x.rpm dbus-daemon-1.12.8-8.el8_0.s390x.rpm dbus-daemon-debuginfo-1.12.8-8.el8_0.s390x.rpm dbus-debuginfo-1.12.8-8.el8_0.s390x.rpm dbus-debugsource-1.12.8-8.el8_0.s390x.rpm dbus-libs-1.12.8-8.el8_0.s390x.rpm dbus-libs-debuginfo-1.12.8-8.el8_0.s390x.rpm dbus-tests-debuginfo-1.12.8-8.el8_0.s390x.rpm dbus-tools-1.12.8-8.el8_0.s390x.rpm dbus-tools-debuginfo-1.12.8-8.el8_0.s390x.rpm dbus-x11-debuginfo-1.12.8-8.el8_0.s390x.rpm x86_64: dbus-1.12.8-8.el8_0.x86_64.rpm dbus-daemon-1.12.8-8.el8_0.x86_64.rpm dbus-daemon-debuginfo-1.12.8-8.el8_0.i686.rpm dbus-daemon-debuginfo-1.12.8-8.el8_0.x86_64.rpm dbus-debuginfo-1.12.8-8.el8_0.i686.rpm dbus-debuginfo-1.12.8-8.el8_0.x86_64.rpm dbus-debugsource-1.12.8-8.el8_0.i686.rpm dbus-debugsource-1.12.8-8.el8_0.x86_64.rpm dbus-libs-1.12.8-8.el8_0.i686.rpm dbus-libs-1.12.8-8.el8_0.x86_64.rpm dbus-libs-debuginfo-1.12.8-8.el8_0.i686.rpm dbus-libs-debuginfo-1.12.8-8.el8_0.x86_64.rpm dbus-tests-debuginfo-1.12.8-8.el8_0.i686.rpm dbus-tests-debuginfo-1.12.8-8.el8_0.x86_64.rpm dbus-tools-1.12.8-8.el8_0.x86_64.rpm dbus-tools-debuginfo-1.12.8-8.el8_0.i686.rpm dbus-tools-debuginfo-1.12.8-8.el8_0.x86_64.rpm dbus-x11-debuginfo-1.12.8-8.el8_0.i686.rpm dbus-x11-debuginfo-1.12.8-8.el8_0.x86_64.rpm These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/ 7. References: https://access.redhat.com/security/cve/CVE-2020-12049 https://access.redhat.com/security/updates/classification/#important 8. Contact: The Red Hat security contact is . More contact details at https://access.redhat.com/security/team/contact/ Copyright 2020 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIVAwUBXxb9l9zjgjWX9erEAQjWPQ/9FCei3LMUbxNzTmA+0C+Y+Hw+vAeJ2Ifz iSZur0/yrrtQPDwg3ELfBHQv5D++jVCGCk/+n0HX95ALCg4UCSibp4p78j7UJuAw sj0njq8beQi4kotKhDVQbe3jUfnxSaLPTe3rBSCK7ZJL8mARK2WbS/JN4E2I2+W/ 6tCf6AjBVNS+G1dt05O1IhkqPea3Anq75GYo/2jgEsE/GmqPdyQbDC8ZVYEiOgn/ tBvKODB/z+WJpRW7bV7iJMjfLG4lBKVEJGBzHTNyzw9PXnbtqPINl7FwSeAO1InU uykFyVA7dgvwoD0R27HrizY4xLwRVSmypH66+GfLv/gBrmGvU8zIv8geMg1J1LGO 0HGkHF/pizhUR3jCQPh7pTZHFTnEXmbzvT36Cn6l3c4PQN3V1CvUXW6BeVwCxuA1 B84bX2qGpbyrckLr7hW7hwlYrexfbX6Vh23nQSwgdenh6ol672glHvB9Ryi6mZ1P gRMNpdEXCJ8e667947a/R6ZkWhuraIuMyJmioDjNyVTMqADATC9SFhEdBAJIyVYY scivJe/+ZAdUF63/fF7KaYKgNrYC5YpPsaBSi108Z7JrTiVpSzqxn42kiSKu0SHq At93DWBb9ieIgrSVZNkNtAUR0+KCnKuN3qyqA8bBQWy/G/JrPXW7Y75ErWjYQjAl J9RkvTKDUn4=5ibG -----END PGP SIGNATURE----- -- RHSA-announce mailing list
Jul 21, 2020
•Important
Red Hat
98
security advisorysecurity issueDoSRed Hat: RHSA-2023-4876-01 Critical: Apache HTTP Server Vulnerability
An update for tomcat is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ==================================================================== Red Hat Security Advisory Synopsis: Important: tomcat security update Advisory ID: RHSA-2018:2921-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2018:2921 Issue date: 2018-10-16 CVE Names: CVE-2018-1336 ==================================================================== 1. Summary: An update for tomcat is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. 2. Relevant releases/architectures: Red Hat Enterprise Linux Client (v. 7) - noarch Red Hat Enterprise Linux Client Optional (v. 7) - noarch Red Hat Enterprise Linux ComputeNode (v. 7) - noarch Red Hat Enterprise Linux ComputeNode Optional (v. 7) - noarch Red Hat Enterprise Linux Server (v. 7) - noarch Red Hat Enterprise Linux Server Optional (v. 7) - noarch Red Hat Enterprise Linux Workstation (v. 7) - noarch Red Hat Enterprise Linux Workstation Optional (v. 7) - noarch Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) - noarch Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) - noarch 3. Description: Apache Tomcat is a servlet container for the Java Servlet and JavaServer Pages (JSP) technologies. Security Fix(es): * tomcat: A bug in the UTF-8 decoder can lead to DoS (CVE-2018-1336) For more details about the securityissue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section. 4. Solution: For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 5. Bugs fixed (https://bugzilla.redhat.com/): 1607591 - CVE-2018-1336 tomcat: A bug in the UTF-8 decoder can lead to DoS 6. Package List: Red Hat Enterprise Linux Client (v. 7): Source: tomcat-7.0.76-8.el7_5.src.rpm noarch: tomcat-servlet-3.0-api-7.0.76-8.el7_5.noarch.rpm Red Hat Enterprise Linux Client Optional (v. 7): noarch: tomcat-7.0.76-8.el7_5.noarch.rpm tomcat-admin-webapps-7.0.76-8.el7_5.noarch.rpm tomcat-docs-webapp-7.0.76-8.el7_5.noarch.rpm tomcat-el-2.2-api-7.0.76-8.el7_5.noarch.rpm tomcat-javadoc-7.0.76-8.el7_5.noarch.rpm tomcat-jsp-2.2-api-7.0.76-8.el7_5.noarch.rpm tomcat-jsvc-7.0.76-8.el7_5.noarch.rpm tomcat-lib-7.0.76-8.el7_5.noarch.rpm tomcat-webapps-7.0.76-8.el7_5.noarch.rpm Red Hat Enterprise Linux ComputeNode (v. 7): Source: tomcat-7.0.76-8.el7_5.src.rpm noarch: tomcat-servlet-3.0-api-7.0.76-8.el7_5.noarch.rpm Red Hat Enterprise Linux ComputeNode Optional (v. 7): noarch: tomcat-7.0.76-8.el7_5.noarch.rpm tomcat-admin-webapps-7.0.76-8.el7_5.noarch.rpm tomcat-docs-webapp-7.0.76-8.el7_5.noarch.rpm tomcat-el-2.2-api-7.0.76-8.el7_5.noarch.rpm tomcat-javadoc-7.0.76-8.el7_5.noarch.rpm tomcat-jsp-2.2-api-7.0.76-8.el7_5.noarch.rpm tomcat-jsvc-7.0.76-8.el7_5.noarch.rpm tomcat-lib-7.0.76-8.el7_5.noarch.rpm tomcat-webapps-7.0.76-8.el7_5.noarch.rpm Red Hat Enterprise Linux Server (v. 7): Source: tomcat-7.0.76-8.el7_5.src.rpm noarch: tomcat-7.0.76-8.el7_5.noarch.rpm tomcat-admin-webapps-7.0.76-8.el7_5.noarch.rpm tomcat-el-2.2-api-7.0.76-8.el7_5.noarch.rpm tomcat-jsp-2.2-api-7.0.76-8.el7_5.noarch.rpm tomcat-lib-7.0.76-8.el7_5.noarch.rpm tomcat-servlet-3.0-api-7.0.76-8.el7_5.noarch.rpm tomcat-webapps-7.0.76-8.el7_5.noarch.rpm Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v.7): Source: tomcat-7.0.76-8.el7_5.src.rpm noarch: tomcat-7.0.76-8.el7_5.noarch.rpm tomcat-admin-webapps-7.0.76-8.el7_5.noarch.rpm tomcat-el-2.2-api-7.0.76-8.el7_5.noarch.rpm tomcat-jsp-2.2-api-7.0.76-8.el7_5.noarch.rpm tomcat-lib-7.0.76-8.el7_5.noarch.rpm tomcat-servlet-3.0-api-7.0.76-8.el7_5.noarch.rpm tomcat-webapps-7.0.76-8.el7_5.noarch.rpm Red Hat Enterprise Linux Server Optional (v. 7): noarch: tomcat-7.0.76-8.el7_5.noarch.rpm tomcat-admin-webapps-7.0.76-8.el7_5.noarch.rpm tomcat-docs-webapp-7.0.76-8.el7_5.noarch.rpm tomcat-el-2.2-api-7.0.76-8.el7_5.noarch.rpm tomcat-javadoc-7.0.76-8.el7_5.noarch.rpm tomcat-jsp-2.2-api-7.0.76-8.el7_5.noarch.rpm tomcat-jsvc-7.0.76-8.el7_5.noarch.rpm tomcat-lib-7.0.76-8.el7_5.noarch.rpm tomcat-webapps-7.0.76-8.el7_5.noarch.rpm Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7): noarch: tomcat-7.0.76-8.el7_5.noarch.rpm tomcat-admin-webapps-7.0.76-8.el7_5.noarch.rpm tomcat-docs-webapp-7.0.76-8.el7_5.noarch.rpm tomcat-el-2.2-api-7.0.76-8.el7_5.noarch.rpm tomcat-javadoc-7.0.76-8.el7_5.noarch.rpm tomcat-jsp-2.2-api-7.0.76-8.el7_5.noarch.rpm tomcat-jsvc-7.0.76-8.el7_5.noarch.rpm tomcat-lib-7.0.76-8.el7_5.noarch.rpm tomcat-webapps-7.0.76-8.el7_5.noarch.rpm Red Hat Enterprise Linux Workstation (v. 7): Source: tomcat-7.0.76-8.el7_5.src.rpm noarch: tomcat-7.0.76-8.el7_5.noarch.rpm tomcat-admin-webapps-7.0.76-8.el7_5.noarch.rpm tomcat-el-2.2-api-7.0.76-8.el7_5.noarch.rpm tomcat-jsp-2.2-api-7.0.76-8.el7_5.noarch.rpm tomcat-lib-7.0.76-8.el7_5.noarch.rpm tomcat-servlet-3.0-api-7.0.76-8.el7_5.noarch.rpm tomcat-webapps-7.0.76-8.el7_5.noarch.rpm Red Hat Enterprise Linux Workstation Optional (v. 7): noarch: tomcat-docs-webapp-7.0.76-8.el7_5.noarch.rpm tomcat-javadoc-7.0.76-8.el7_5.noarch.rpm tomcat-jsvc-7.0.76-8.el7_5.noarch.rpm These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key 7.References: https://access.redhat.com/security/cve/CVE-2018-1336 https://access.redhat.com/security/updates/classification#important 8. Contact: The Red Hat security contact is . More contact details at https://access.redhat.com/security/team/contact Copyright 2018 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIVAwUBW8Wiv9zjgjWX9erEAQhrvg//YvrUqL+9zW4MWpq0g4r1FDOfZ2CMm5kZ /NFK0tZYaXxPr5x4UDcwxLjz/qS/SeVIJzrObJNt8HEj3G9h0G1s0N8UTUxPuxBX gakPsQue+OIUmUPm3r+U8BId8ZL1jiJbQIOnncV7KPBeCqYVe/F96VT6KsOwMen2 Cove2VMMaqt8gnnWPYp+ofi5UYUsfuBXq1ZGVQHSda0BDDPJbfqo25Hk8/8kKcZL 3/ZED0fM+6uQLZvyRAZlQjQn0LLiBuWa0Lz0twXHVQjMHixoQ90K825cL4wlr05n xi8Z3t7dGm2k9rDR52KP3YPZ2Ppk/Jv+KNwUxile4Dl/tWnYFqSaMPxx+scjiybx YJW7QbMDiEh1tF6H59nXuLcfqNu13uAoRsNu5Q8NyZmGO1LIPLNymu8EnXSwXrzV vckSbwDHDMh/W3g1FgpSA5g0FcMn6t7miKaUC+UKdqdXBCFf3s0MKhki1g65xCmE /350r78Dq3arwL9czEaG5gbmdfvZM+KpscrwMyWIQsTdVNCnzervRPdfNVFgq7Zd R2x+WA5+hQhinsNcm7uLwf4rEP10Yb1j13uCeuNIHjYvrrcY4grTU9Asyo4O8sxy vlCNkGlHOyC9zbgRVvzvp/IvB+1LKJi7AqHybcTz5+tB8WdEZ4esxyLNcqhF6a3g Ye29ndjUsWk=kdrO -----END PGP SIGNATURE----- -- RHSA-announce mailing list
Oct 16, 2018
•Important
Red Hat
98
security advisorymoderatebug fixRed Hat 7.0 RHSA-2016:0266-01 Moderate: OpenStack Heat DoS Risk
Updated openstack-heat packages that fix one security issue and resolve various bugs are now available for Red Hat Enterprise Linux OpenStack Platform 7.0 (Kilo) for RHEL 7. Red Hat Product Security has rated this update as having Moderate security. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ==================================================================== Red Hat Security Advisory Synopsis: Moderate: openstack-heat bug fix and security advisory Advisory ID: RHSA-2016:0266-01 Product: Red Hat Enterprise Linux OpenStack Platform Advisory URL: https://access.redhat.com/errata/RHSA-2016:0266.html Issue date: 2016-02-18 CVE Names: CVE-2015-5295 ==================================================================== 1. Summary: Updated openstack-heat packages that fix one security issue and resolve various bugs are now available for Red Hat Enterprise Linux OpenStack Platform 7.0 (Kilo) for RHEL 7. Red Hat Product Security has rated this update as having Moderate security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section. 2. Relevant releases/architectures: Red Hat Enterprise Linux OpenStack Platform 7.0 for RHEL 7 - noarch 3. Description: OpenStack Orchestration (heat) is a template-driven engine used to specify and deploy configurations for Compute, Storage, and OpenStack Networking. A vulnerability was discovered in the OpenStack Orchestration service (heat), where a specially formatted template could be used to trick the heat-engine service into opening a local file. Although the file contents are never disclosed to the end user, an OpenStack- authenticated attacker could use this flaw to cause a denial of service or determine whether a given file name is present on the server. (CVE-2015-5295) This issue was discovered by Steven Hardy of Red Hat. This update has the following known issue: * Bydefault, the number of created heat-engine workers match the number of cores on the undercloud. However, if there is only one core, there is only one heat-engine worker, and this causes deadlocks when creating the overcloud stack. A single heat-engine worker is not enough to launch an overcloud stack. Workaround: The undercloud must have at least two (virtual) cores. For virtual deployments, this should be two vCPUs, regardless of cores on the baremetal host. Otherwise, you can uncomment the num_engine_workers line in /etc/heat/heat.conf, and restart openstack- heat-engine. (BZ#1290949) This update also fixes the following bugs: * When a stack update fails, Orchestration stores a merged environment file. Previously, with an interrupted update, the merged environment file was not written, any resources already created that had new type aliases in the environment could not have their types resolved, and the failed stack could not be updated. This patch now catches any exceptions that occur, and ensures that the stack can now be updated. (BZ#1290950) * Previously, stack updates resulted in an OS::Neutron::Port resource being replaced when the property values were changed in the following ways: - The network property referred to the same network, but by name instead of UUID, or by UUID instead of name. - Specifying the network using the 'network' property instead of the deprecated 'network_id' property, or using the deprecated 'network_id' property instead of the network property. This issue has been resolved. (BZ#1291845) * This update resolves an issue that caused the deployment of Orchestration templates to fail during resource validation. Network IDs are now correctly identified. (BZ#1292152) * Previously, using the Orchestration API actions > check call removed output values from the existing stack (using either CLI or dashboard). This broke stack updates and other operations depending on stack output values after operation execution. This issue has been resolved.(BZ#1299257) * Upgrades of overclouds from Red Hat Enterprise Linux OpenStack Platform 7.2 to 7.3 failed with the error "resources.SwiftDevicesAndProxyConfig: Property controller_swift_proxy_memcaches_v6 not assigned". This issue has been resolved. (BZ#1300847) * Previously, when resource metadata was requested from Orchestration, all attribute values were fetched, even though this data was not returned by the API. This meant at least one pointless ReST API call to the OpenStack service, and "404 Not Found" messages accumulated in both heat-engine and nova-api logs. With this update, Orchestration no longer calculates attribute values when only the metadata for a resource is requested. (BZ#1304854) * Previously, the "heat-manage purge_delete" cron job on the undercloud failed when attempting to purge the raw_template table. This patch fixes the raw_template purge query on MySQL, and handles stack tags before removing stacks which resolves the issue and also removes some race conditions where incorrect data was being deleted.(BZ#1306444) 4. Solution: Before applying this update, ensure all previously released errata relevant to your system have been applied. Red Hat Enterprise Linux OpenStack Platform 7 runs on Red Hat Enterprise Linux 7.2. The Red Hat Enterprise Linux OpenStack Platform 7 Release Notes contain the following: * An explanation of the way in which the provided components interact to form a working cloud computing environment. * Technology Previews, Recommended Practices, and Known Issues. * The channels required for Red Hat Enterprise Linux OpenStack Platform 7, including which channels need to be enabled and disabled. The Release Notes are available at: ck-platform/version-7/red-hat-enterprise-linux-openstack-platform-7-release - -notes/release-notes This update is available through 'yum update' on systems registered through Red Hat Subscription Manager. For more information about Red Hat Subscription Manager, see: nt/1/html/RHSM/index.html 5. Bugs fixed(https://bugzilla.redhat.com/): 1280094 - Uncaught exceptions can leave stacks hanging UPDATE_IN_PROGRESS 1288207 - Heat is unable to delete stack's resources if a 'port' name is given to a resource and not a UUID. 1290949 - rhel-osp-director: re-ran the deployment command: "Stack failed with status: resources.Controller: MessagingTimeout: resources[0]: Timed out waiting for a reply to message ID 863d0fbc6ce24cd288074d901d1a6e64 ERROR: openstack Heat Stack update failed." 1290950 - rhel-osp-director: update 7.0-> 7.2 and 7.2 > 7.3 fails StackValidationFailed: Unknown resource Type : OS::TripleO::NodeTLSCAData (*include-password or export HEAT_INCLUDE_PASSWORD=1) 1291845 - when not using network isolation, after an update from GA to latest release the apis try to reach the old public_virtual_ip 1292152 - Heat template fails in validation started with OSP7 1298295 - CVE-2015-5295 openstack-heat: Vulnerability in Heat template validation leading to DoS 1299257 - heat API: actions-> check removes stack output values. 1299613 - rhel-osp-director: Scale-up Ceph from 1 to 3 fails, when Overcloud is deployed with SSL (resources.EndpointMap: Timed out) . 1300847 - rhel-osp-director: Overcloud update from 7.2-> 7.3 fails "resources.SwiftDevicesAndProxyConfig: Property controller_swift_proxy_memcaches_v6 not assigned " 1302828 - Hooks can remain set after a stack operation is stopped 1304854 - Metadata polling unnecessarily calls Nova 1304935 - Heat logs gigabytes of boring, worthless stuff 1306444 - DB Purge of raw_template fails on constraint from resources.current_template_id 6. Package List: Red Hat Enterprise Linux OpenStack Platform 7.0 for RHEL 7: Source: openstack-heat-2015.1.2-9.el7ost.src.rpm noarch: openstack-heat-api-2015.1.2-9.el7ost.noarch.rpm openstack-heat-api-cfn-2015.1.2-9.el7ost.noarch.rpm openstack-heat-api-cloudwatch-2015.1.2-9.el7ost.noarch.rpm openstack-heat-common-2015.1.2-9.el7ost.noarch.rpm openstack-heat-engine-2015.1.2-9.el7ost.noarch.rpm These packages are GPG signed by Red Hat forsecurity. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key 7. References: https://access.redhat.com/security/cve/CVE-2015-5295 https://access.redhat.com/security/updates/classification#moderate 8. Contact: The Red Hat security contact is . More contact details at https://access.redhat.com/security/team/contact Copyright 2016 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iD8DBQFWxh2PXlSAg2UNWIIRAs8ZAJ96mowFUbmIWA5smljYit1Sa7Pr4gCggyUq G5GA0S0D9YUvuUDPFRCNxbI=/ZbZ -----END PGP SIGNATURE----- -- Enterprise-watch-list mailing list
Feb 18, 2016
Red Hat
100
security advisorysoftware updateDoSSUSE Linux 10 SP4: 2013:1627-1 Important: libxml2 Denial Of Service Risk
An update that fixes 8 vulnerabilities is now available. An update that fixes 8 vulnerabilities is now available. An update that fixes 8 vulnerabilities is now available.. SUSE Security Update: Security update for libxml2 ______________________________________________________________________________ Announcement ID: SUSE-SU-2013:1627-1 Rating: important References: #829077 Cross-References: CVE-2011-3102 CVE-2011-3919 CVE-2012-0841 CVE-2012-2807 CVE-2012-5134 CVE-2013-0338 CVE-2013-0339 CVE-2013-2877 Affected Products: SUSE Linux Enterprise Server 10 SP4 LTSS ______________________________________________________________________________ An update that fixes 8 vulnerabilities is now available. Description: libxml2 has been updated to fix the following security issue: * CVE-2013-0338: libxml2 allowed context-dependent attackers to cause a denial of service (CPU and memory consumption) via an XML file containing an entity declaration with long replacement text and many references to this entity, aka "internal entity expansion" with linear complexity. Security Issue references: * CVE-2013-0338 * CVE-2013-0339 * CVE-2012-5134 * CVE-2012-2807 * CVE-2011-3102 * CVE-2012-0841 * CVE-2011-3919 * CVE-2013-2877 Package List: - SUSE Linux Enterprise Server 10 SP4 LTSS (i586 s390x x86_64): libxml2-2.6.23-15.39.1 libxml2-devel-2.6.23-15.39.1 libxml2-python-2.6.23-15.39.1 - SUSE Linux Enterprise Server 10 SP4 LTSS (s390x x86_64): libxml2-32bit-2.6.23-15.39.1 libxml2-devel-32bit-2.6.23-15.39.1 References: https://www.suse.com/security/cve/CVE-2011-3102.html https://www.suse.com/security/cve/CVE-2011-3919.html https://www.suse.com/security/cve/CVE-2012-0841.html https://www.suse.com/security/cve/CVE-2012-2807.html https://www.suse.com/security/cve/CVE-2012-5134.html https://www.suse.com/security/cve/CVE-2013-0338.html https://www.suse.com/security/cve/CVE-2013-0339.html https://www.suse.com/security/cve/CVE-2013-2877.html . The latest security patch for libxml2 resolves several issues to improve system stability and performance.. SUSE Linux, libxml2 update, security advisory, sysadmin, server management. . Severity: Important. LinuxSecurity.com Team
Nov 04, 2013
•Important
SuSE
91
security advisorydenial of servicesoftware updateGentoo: 201001-01 Alert: Risk of NTP Denial of Service Attack
A Denial of Service condition in ntpd can cause excessive CPU or bandwidth consumption.. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 201001-01 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - https://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: NTP: Denial of Service Date: January 03, 2010 Bugs: #290881 ID: 201001-01 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======= A Denial of Service condition in ntpd can cause excessive CPU or bandwidth consumption. Background ========= NTP is a set of the Network Time Protocol programs. Affected packages ================ ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 net-misc/ntp < 4.2.4_p7-r1 > = 4.2.4_p7-r1 Description ========== Robin Park and Dmitri Vinokurov discovered that ntp_request.c in ntpd does not handle MODE_PRIVATE packets correctly, causing a continuous exchange of MODE_PRIVATE error responses between two NTP daemons or causing high CPU load on a single host. Impact ===== A remote, unauthenticated attacker could send a specially crafted MODE_PRIVATE packet, allowing for a Denial of Service condition (CPU and bandwidth consumption). Workaround ========= There is no known workaround at this time. Resolution ========= All NTP users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose "> =net-misc/ntp-4.2.4_p7-r1" References ========= [ 1 ] CVE-2009-3563 https://www.cve.org/CVERecord?id=CVE-2009-3563 Availability =========== This GLSA and any updates to it are available for viewing at the Gentoo Security Website: https://security.gentoo.org/glsa/201001-01 Concerns? ======== Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to
Jan 03, 2010
Gentoo
Get the latest News and Insights
Get the latest Linux and open source security news straight to your inbox.
Community Poll
Should Linux servers automatically install security updates?
Search Topics
Powered By
Linux Security - Your source for Top Linux News, Advisories, HOWTOs and Feature Releases
QUICK LINKS
subscribe to newsletters!
Like staying secure? So do we.
Sign up for updates, tips, and alerts!