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Debian Dovecot High Severity Service Disruption Info Leak Flaw DLA-4617-1

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Debian 11 gsasl Critical DoS Threat Advisory DLA-4618-1 CVE-2026-48829

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Ls Advisories Scientific Esm H240
Price Tag 1security advisorynetwork securitylow severity

Scientific Linux: CVE-2011-1526 Low: Kerberos Authentication Issues

Low: krb5 security and bug fix update. Date: Wed, 21 Mar 2012 16:24:58 -0500 Reply-To: This email address is being protected from spambots. You need JavaScript enabled to view it. Sender: Security Errata for Scientific Linux From: Patrick Riehecky Subject: Security ERRATA Low: krb5 on SL5.x i386/x86_64 Comments: To: This email address is being protected from spambots. You need JavaScript enabled to view it. Synopsis: Low: krb5 security and bug fix update Issue Date: 2012-02-21 CVE Numbers: CVE-2011-1526 Kerberos is a network authentication system which allows clients and servers to authenticate to each other using symmetric encryption and a trusted third-party, the Key Distribution Center (KDC). It was found that ftpd, a Kerberos-aware FTP server, did not properly drop privileges. On Scientific Linux 5, the ftpd daemon did not check for the potential failure of the effective group ID change system call. If the group ID change failed, a remote FTP user could use this flaw to gain unauthorized read or write access to files that are owned by the root group. (CVE-2011-1526) This update also fixes the following bugs: * Due to a mistake in the Kerberos libraries, a client could fail to contact a Key Distribution Center (KDC) or terminate unexpectedly if the client had already more than 1024 file descriptors in use. This update backports modifications to the Kerberos libraries and the libraries use the poll() function instead of the select() function, as poll() does not have this limitation. * The KDC failed to release memory when processing a TGS (ticket-granting server) request from a client if the client request included an authenticator with a subkey. As a result, the KDC consumed an excessive amount of memory. With this update, the code releasing the memory has been added and the problem no longer occurs. * Under certain circumstances, if services requiring Kerberos authentication sent two authentication requests to the authenticating server, the second authentication request was flagged as a replay attack. As a result, the second authentication attempt was denied. This update applies an upstream patch that fixes this bug. *Previously, if Kerberos credentials had expired, the klist command could terminate unexpectedly with a segmentation fault when invoked with the -s option. This happened when klist encountered and failed to process an entry with no realm name while scanning the credential cache. With this update, the underlying code has been modified and the command handles such entries correctly. * Due to a regression, multi-line FTP macros terminated prematurely with a segmentation fault. This occurred because the previously-added patch failed to properly support multi-line macros. This update restores the support for multi-line macros and the problem no longer occurs. All users of krb5 are advised to upgrade to these updated packages, which resolve these issues. SL5: i386 krb5-debuginfo-1.6.1-70.el5.i386.rpm krb5-devel-1.6.1-70.el5.i386.rpm krb5-libs-1.6.1-70.el5.i386.rpm krb5-server-1.6.1-70.el5.i386.rpm krb5-server-ldap-1.6.1-70.el5.i386.rpm krb5-workstation-1.6.1-70.el5.i386.rpm x86_64 krb5-debuginfo-1.6.1-70.el5.i386.rpm krb5-debuginfo-1.6.1-70.el5.x86_64.rpm krb5-devel-1.6.1-70.el5.i386.rpm krb5-devel-1.6.1-70.el5.x86_64.rpm krb5-libs-1.6.1-70.el5.i386.rpm krb5-libs-1.6.1-70.el5.x86_64.rpm krb5-server-1.6.1-70.el5.x86_64.rpm krb5-server-ldap-1.6.1-70.el5.x86_64.rpm krb5-workstation-1.6.1-70.el5.x86_64.rpm - Scientific Linux Development Team . Kerberos patch release for SL5.x addressing various authentication vulnerabilities and defects. Update advised.. krb5 security update, Scientific Linux 5, authentication bugs, low severity advisory. . Severity: Low. LinuxSecurity.com Team

Calendar 2 Mar 21, 2012 •Low Scientific Linux
98
Ls Advisories Redhat Esm H240
Price Tag 1security advisoryRed Hatcritical

Critical Update for Red Hat 7.2: Fix mod_security XSS Vulnerability

These updates close a vulnerability which would allow a malicious client tocause a Web server to execute arbitrary SQL statements.. ` --------------------------------------------------------------------- Red Hat, Inc. Red Hat Security Advisory Synopsis: Updated mod_auth_pgsql packages available Advisory ID: RHSA-2001:124-04 Issue date: 2001-10-05 Updated on: 2001-10-23 Product: Red Hat Linux Keywords: string injection md5 mod_auth_pgsql Cross references: Obsoletes: --------------------------------------------------------------------- 1. Topic: Updated mod_auth_pgsql packages are now available for Red Hat Linux 7.2. These updates close a vulnerability which would allow a malicious client to cause a Web server to execute arbitrary SQL statements. A bug in the MD5 password mechanism causing valid passwords not to authenticate the user has also been fixed. 2. Relevant releases/architectures: Red Hat Linux 7.2 - i386 3. Problem description: The updated mod_auth_pgsql packages close a vulnerability which would allow a malicious client to cause a Web server to execute arbitrary SQL statements. Several Apache authentication modules which use SQL databases to store authentication information are vulnerable to a remote SQL code injection attack. A bug in the MD5 password mechanism causing valid passwords not to authenticate the user has also been fixed. 4. Solution: Before applying this update, make sure all previously released errata relevant to your system have been applied. To update all RPMs for your particular architecture, run: rpm -Fvh [filenames] where [filenames] is a list of the RPMs you wish to upgrade. Only those RPMs which are currently installed will be updated. Those RPMs which are not installed but included in the list will not be updated. Note that you can also use wildcards (*.rpm) if your current directory *only* contains the desired RPMs. Please note that this update is also available via Red Hat Network. Many people find this an easier way to apply updates. To use Red Hat Network, launch the Red Hat Update Agent with the following command: up2date This will start an interactive process that will result in the appropriate RPMs being upgraded on your system. 5. Bug IDs fixed ( for more info): 54146 - security: sql injection 6. RPMs required: Red Hat Linux 7.2: SRPMS: i386: 7. Verification: MD5 sum Package Name -------------------------------------------------------------------------- 5ebc2970c695950a24a044b046dc94d2 7.2/en/os/SRPMS/mod_auth_pgsql-0.9.9-2.src.rpm 30c43be9ed24fbf0e3b7e1e44ff28808 7.2/en/os/i386/mod_auth_pgsql-0.9.9-2.i386.rpm These packages are GPG signed by Red Hat, Inc. for security. Our key is available at: About You can verify each package with the following command: rpm --checksig If you only wish to verify that each package has not been corrupted or tampered with, examine only the md5sum with the following command: rpm --checksig --nogpg 8. References: Copyright(c) 2000, 2001 Red Hat, Inc. `. Recent mod_auth_pgsql enhancements have been deployed for CentOS, targeting weaknesses in SQL injection and optimizing authentication processes effectively.. Red Hat Linux, mod_auth_pgsql, SQL injection, security updates, authentication fix. . Severity: Critical. LinuxSecurity.com Team

Calendar 2 Oct 24, 2001 •Critical Red Hat
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