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security advisorydenial of servicesecurity issueUbuntu 16.04 LTS: USN-3259-1 Critical Bind Denial Of Service Advisory
Several security issues were fixed in Bind.. =========================================================================Ubuntu Security Notice USN-3259-1 April 17, 2017 bind9 vulnerabilities ========================================================================= A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 17.04 - Ubuntu 16.10 - Ubuntu 16.04 LTS - Ubuntu 14.04 LTS - Ubuntu 12.04 LTS Summary: Several security issues were fixed in Bind. Software Description: - bind9: Internet Domain Name Server Details: It was discovered that the resolver in Bind made incorrect assumptions about ordering when processing responses containing a CNAME or DNAME. An attacker could use this cause a denial of service. (CVE-2017-3137) Oleg Gorokhov discovered that in some situations, Bind did not properly handle DNS64 queries. An attacker could use this to cause a denial of service. (CVE-2017-3136) Mike Lalumiere discovered that in some situations, Bind did not properly handle invalid operations requested via its control channel. An attacker with access to the control channel could cause a denial of service. (CVE-2017-3138) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 17.04: bind9 1:9.10.3.dfsg.P4-10.1ubuntu5 Ubuntu 16.10: bind9 1:9.10.3.dfsg.P4-10.1ubuntu1.6 Ubuntu 16.04 LTS: bind9 1:9.10.3.dfsg.P4-8ubuntu1.6 Ubuntu 14.04 LTS: bind9 1:9.9.5.dfsg-3ubuntu0.14 Ubuntu 12.04 LTS: bind9 1:9.8.1.dfsg.P1-4ubuntu0.22 In general, a standard system update will make all the necessary changes. References: https://ubuntu.com/security/notices/USN-3259-1 CVE-2017-3136, CVE-2017-3137, CVE-2017-3138 Package Information: https://launchpad.net/ubuntu/+source/bind9/1:9.10.3.dfsg.P4-10.1ubuntu5 https://launchpad.net/ubuntu/+source/bind9/1:9.10.3.dfsg.P4-10.1ubuntu1.6 https://launchpad.net/ubuntu/+source/bind9/1:9.10.3.dfsg.P4-8ubuntu1.6 https://launchpad.net/ubuntu/+source/bind9/1:9.9.5.dfsg-3ubuntu0.14 https://launchpad.net/ubuntu/+source/bind9/1:9.8.1.dfsg.P1-4ubuntu0.22 . =========================================================================Ubuntu Security Notice USN-. security, ========================================================. . Severity: Critical. LinuxSecurity.com Team
Apr 17, 2017
•Critical
Ubuntu
172
security advisoryupdatecriticalUbuntu 15.10: USN-2880-2 Critical: Firefox Application Crash Fix
USN-2880-1 introduced a regression in Firefox.. =========================================================================Ubuntu Security Notice USN-2880-2 February 08, 2016 firefox regression ========================================================================= A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 15.10 - Ubuntu 14.04 LTS - Ubuntu 12.04 LTS Summary: USN-2880-1 introduced a regression in Firefox. Software Description: - firefox: Mozilla Open Source web browser Details: USN-2880-1 fixed vulnerabilities in Firefox. This update introduced a regression which caused Firefox to crash on startup with some configurations. This update fixes the problem. We apologize for the inconvenience. Original advisory details: Bob Clary, Christian Holler, Nils Ohlmeier, Gary Kwong, Jesse Ruderman, Carsten Book, Randell Jesup, Nicolas Pierron, Eric Rescorla, Tyson Smith, and Gabor Krizsanits discovered multiple memory safety issues in Firefox. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit these to cause a denial of service via application crash, or execute arbitrary code with the privileges of the user invoking Firefox. (CVE-2016-1930, CVE-2016-1931) Gustavo Grieco discovered an out-of-memory crash when loading GIF images in some circumstances. If a user were tricked in to opening a specially crafted website, an attacker could exploit this to cause a denial of service. (CVE-2016-1933) Aki Helin discovered a buffer overflow when rendering WebGL content in some circumstances. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit this to cause a denial of service via application crash, or execute arbitrary code with the privileges of the user invoking Firefox. (CVE-2016-1935) It was discovered that a delay was missing when focusing the protocol handler dialog. If a user were tricked in to opening aspecially crafted website, an attacker could potentially exploit this to conduct clickjacking attacks. (CVE-2016-1937) Hanno Böck discovered that calculations with mp_div and mp_exptmod in NSS produce incorrect results in some circumstances, resulting in cryptographic weaknesses. (CVE-2016-1938) Nicholas Hurley discovered that Firefox allows for control characters to be set in cookie names. An attacker could potentially exploit this to conduct cookie injection attacks on some web servers. (CVE-2016-1939) It was discovered that when certain invalid URLs are pasted in to the addressbar, the addressbar contents may be manipulated to show the location of arbitrary websites. An attacker could potentially exploit this to conduct URL spoofing attacks. (CVE-2016-1942) Ronald Crane discovered three vulnerabilities through code inspection. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit these to cause a denial of service via application crash, or execute arbitrary code with the privileges of the user invoking Firefox. (CVE-2016-1944, CVE-2016-1945, CVE-2016-1946) François Marier discovered that Application Reputation lookups didn't work correctly, disabling warnings for potentially malicious downloads. An attacker could potentially exploit this by tricking a user in to downloading a malicious file. Other parts of the Safe Browsing feature were unaffected by this. (CVE-2016-1947) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 15.10: firefox 44.0.1+build2-0ubuntu0.15.10.1 Ubuntu 14.04 LTS: firefox 44.0.1+build2-0ubuntu0.14.04.1 Ubuntu 12.04 LTS: firefox 44.0.1+build2-0ubuntu0.12.04.1 After a standard system update you need to restart Firefox to make all the necessary changes. References: https://ubuntu.com/security/notices/USN-2880-2 https://ubuntu.com/security/notices/USN-2880-1 https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1538724 Package Information: https://launchpad.net/ubuntu/+source/firefox/44.0.1+build2-0ubuntu0.15.10.1 https://launchpad.net/ubuntu/+source/firefox/44.0.1+build2-0ubuntu0.14.04.1 https://launchpad.net/ubuntu/+source/firefox/44.0.1+build2-0ubuntu0.12.04.1 . A bug introduced in Firefox as noted in USN-2880-2 has affected several versions of Ubuntu, leading to unexpected application failures.. Firefox Regression, Application Crash, Ubuntu Security Advisory. . Severity: Critical. LinuxSecurity.com Team
Feb 08, 2016
•Critical
Ubuntu
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