These are the Ubuntu security notices that affect the current supported releases of Ubuntu. These notices are also posted to the ubuntu-security-announce mailing list (list archive). To report a security vulnerability in an Ubuntu package, please file a bug, or contact security@ubuntu.com. You may also be interested in learning about Ubuntu security policies. For more details on a specific CVE or source package, please see the Ubuntu CVE Tracker.
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USN-1692-1: QEMU vulnerability - 16th January 2013
It was discovered that QEMU incorrectly handled certain e1000 packet sizes. In certain environments, an attacker may use this flaw in combination with large packets to cause a denial of service or execute arbitrary code in the guest.
USN-1691-1: Linux kernel (OMAP4) vulnerability - 15th January 2013
A flaw was discovered in the Linux kernel's handling of script execution when module loading is enabled. A local attacker could exploit this flaw to cause a leak of kernel stack contents.
USN-1689-1: Linux kernel vulnerabilities - 15th January 2013
Jon Howell reported a flaw in the Linux kernel's KVM (Kernel-based virtual machine) subsystem's handling of the XSAVE feature. On hosts, using qemu userspace, without the XSAVE feature an unprivileged local attacker could exploit this flaw to crash the system. (CVE-2012-4461) A flaw was discovered in the Linux kernel's handling ...
USN-1688-1: Linux kernel (Oneiric backport) vulnerabilities - 15th January 2013
Jon Howell reported a flaw in the Linux kernel's KVM (Kernel-based virtual machine) subsystem's handling of the XSAVE feature. On hosts, using qemu userspace, without the XSAVE feature an unprivileged local attacker could exploit this flaw to crash the system. (CVE-2012-4461) A flaw was discovered in the Linux kernel's handling ...
USN-1687-2: NSPR update - 14th January 2013
USN-1687-1 fixed a vulnerability NSS. This update provides the NSPR needed to use the new NSS. Original advisory details: Two intermediate CA certificates were mis-issued by the TURKTRUST certificate authority. If a remote attacker were able to perform a man-in-the-middle attack, this flaw could be exploited to view sensitive information.
USN-1687-1: NSS vulnerability - 14th January 2013
Two intermediate CA certificates were mis-issued by the TURKTRUST certificate authority. If a remote attacker were able to perform a man-in-the-middle attack, this flaw could be exploited to view sensitive information.
USN-1686-1: FreeType vulnerabilities - 14th January 2013
Mateusz Jurczyk discovered that FreeType did not correctly handle certain malformed BDF font files. If a user were tricked into using a specially crafted font file, a remote attacker could cause FreeType to crash or possibly execute arbitrary code with user privileges.
CVE-2012-5668 CVE-2012-5669 CVE-2012-5670
USN-1685-1: Tomcat vulnerabilities - 14th January 2013
It was discovered that Tomcat incorrectly performed certain security constraint checks in the FORM authenticator. A remote attacker could possibly use this flaw with a specially-crafted URI to bypass security constraint checks. This issue only affected Ubuntu 10.04 LTS, Ubuntu 11.10 and Ubuntu 12.04 LTS. (CVE-2012-3546) It was discovered that ...
CVE-2012-3546 CVE-2012-4431 CVE-2012-4534
USN-1684-1: Linux kernel (EC2) vulnerability - 10th January 2013
A flaw was discovered in the Linux kernel's handling of script execution when module loading is enabled. A local attacker could exploit this flaw to cause a leak of kernel stack contents.
USN-1683-1: Linux kernel vulnerability - 10th January 2013
A flaw was discovered in the Linux kernel's handling of script execution when module loading is enabled. A local attacker could exploit this flaw to cause a leak of kernel stack contents.
USN-1682-1: GnuPG vulnerability - 9th January 2013
KB Sriram discovered that GnuPG incorrectly handled certain malformed keys. If a user or automated system were tricked into importing a malformed key, the GnuPG keyring could become corrupted.
USN-1681-2: Thunderbird vulnerabilities - 8th January 2013
USN-1681-1 fixed vulnerabilities in Firefox. This update provides the corresponding updates for Thunderbird. Original advisory details: Christoph Diehl, Christian Holler, Mats Palmgren, Chiaki Ishikawa, Bill Gianopoulos, Benoit Jacob, Gary Kwong, Robert O'Callahan, Jesse Ruderman, and Julian Seward discovered multiple memory safety issues affecting Firefox. If the user were tricked into ...
CVE-2012-5829 CVE-2013-0743 CVE-2013-0744 CVE-2013-0745 CVE-2013-0746 CVE-2013-0747 CVE-2013-0748 CVE-2013-0749 CVE-2013-0750 CVE-2013-0752 CVE-2013-0753 CVE-2013-0754 CVE-2013-0755 CVE-2013-0756 CVE-2013-0757 CVE-2013-0758 CVE-2013-0759 CVE-2013-0760 CVE-2013-0761 CVE-2013-0762 CVE-2013-0763 CVE-2013-0764 CVE-2013-0766 CVE-2013-0767 CVE-2013-0768 CVE-2013-0769 CVE-2013-0770 CVE-2013-0771 LP: 1096456
USN-1681-1: Firefox vulnerabilities - 8th January 2013
Christoph Diehl, Christian Holler, Mats Palmgren, Chiaki Ishikawa, Bill Gianopoulos, Benoit Jacob, Gary Kwong, Robert O'Callahan, Jesse Ruderman, and Julian Seward discovered multiple memory safety issues affecting Firefox. If the user were tricked into opening a specially crafted page, an attacker could possibly exploit these to cause a denial of ...
CVE-2012-5829 CVE-2013-0743 CVE-2013-0744 CVE-2013-0745 CVE-2013-0746 CVE-2013-0747 CVE-2013-0748 CVE-2013-0749 CVE-2013-0750 CVE-2013-0752 CVE-2013-0753 CVE-2013-0754 CVE-2013-0755 CVE-2013-0756 CVE-2013-0757 CVE-2013-0758 CVE-2013-0759 CVE-2013-0760 CVE-2013-0761 CVE-2013-0762 CVE-2013-0763 CVE-2013-0764 CVE-2013-0766 CVE-2013-0767 CVE-2013-0768 CVE-2013-0769 CVE-2013-0770 CVE-2013-0771 LP: 1096387
USN-1680-1: MoinMoin vulnerabilities - 29th December 2012
It was discovered that MoinMoin did not properly sanitize its input when processing AnyWikiDraw and TWikiDraw actions. A remote attacker with write access could exploit this to overwrite arbitrary files and execute arbitrary code with the priviliges of the web server (user 'www-data'). It was discovered that MoinMoin also did ...
USN-1679-1: Linux kernel (OMAP4) vulnerability - 20th December 2012
A flaw was discovered in the Linux kernel's handling of new hot-plugged memory. An unprivileged local user could exploit this flaw to cause a denial of service by crashing the system.
USN-1678-1: Linux kernel (Oneiric backport) vulnerability - 20th December 2012
A flaw was discovered in the Linux kernel's handling of new hot-plugged memory. An unprivileged local user could exploit this flaw to cause a denial of service by crashing the system.
USN-1677-1: Linux kernel vulnerability - 20th December 2012
A flaw was discovered in the Linux kernel's handling of new hot-plugged memory. An unprivileged local user could exploit this flaw to cause a denial of service by crashing the system.
USN-1676-1: AppArmor update - 19th December 2012
Dan Rosenberg discovered that the example AppArmor profile for chromium-browser could be escaped by calling xdg-settings with a crafted environment.
USN-1675-1: FFmpeg vulnerabilities - 19th December 2012
It was discovered that FFmpeg incorrectly handled certain malformed media files. If a user were tricked into opening a crafted media file, an attacker could cause a denial of service via application crash, or possibly execute arbitrary code with the privileges of the user invoking the program.
CVE-2012-2777 CVE-2012-2784 CVE-2012-2788 CVE-2012-2801
USN-1674-1: Libav vulnerabilities - 19th December 2012
It was discovered that Libav incorrectly handled certain malformed media files. If a user were tricked into opening a crafted media file, an attacker could cause a denial of service via application crash, or possibly execute arbitrary code with the privileges of the user invoking the program.
CVE-2012-2772 CVE-2012-2775 CVE-2012-2777 CVE-2012-2779 CVE-2012-2784 CVE-2012-2786 CVE-2012-2788 CVE-2012-2789 CVE-2012-2790 CVE-2012-2793 CVE-2012-2794 CVE-2012-2798 CVE-2012-2800 CVE-2012-2801
USN-1673-1: Linux kernel (OMAP4) vulnerability - 18th December 2012
Dmitry Monakhov reported a race condition flaw the Linux ext4 filesystem that can expose stale data. An unprivileged user could exploit this flaw to cause an information leak. (CVE-2012-4508) A flaw was discovered in the Linux kernel's handling of new hot-plugged memory. An unprivileged local user could exploit this flaw ...
CVE-2012-4508 CVE-2012-5517 CVE-2013-1928
USN-1671-1: Linux kernel vulnerability - 18th December 2012
Dmitry Monakhov reported a race condition flaw the Linux ext4 filesystem that can expose stale data. An unprivileged user could exploit this flaw to cause an information leak. (CVE-2012-4508) A flaw was discovered in the Linux kernel's handling of new hot-plugged memory. An unprivileged local user could exploit this flaw ...
CVE-2012-4508 CVE-2012-5517 CVE-2013-1928
USN-1670-1: Linux kernel (OMAP4) vulnerability - 18th December 2012
A flaw was discovered in the Linux kernel's handling of new hot-plugged memory. An unprivileged local user could exploit this flaw to cause a denial of service by crashing the system.
USN-1669-1: Linux kernel vulnerability - 18th December 2012
A flaw was discovered in the Linux kernel's handling of new hot-plugged memory. An unprivileged local user could exploit this flaw to cause a denial of service by crashing the system.
USN-1668-1: Apport update - 17th December 2012
Dan Rosenberg discovered that an application running under an AppArmor profile that allowed unconfined execution of apport-bug could escape confinement by calling apport-bug with a crafted environment. While not a vulnerability in apport itself, this update mitigates the issue by sanitizing certain variables in the apport-bug shell script.
USN-1667-1: bogofilter vulnerability - 17th December 2012
Julius Plenz discovered that bogofilter incorrectly handled certain invalid base64 code. By sending a specially crafted email, a remote attacker could exploit this and cause bogofilter to crash, resulting in a denial of service, or possibly execute arbitrary code.
USN-1666-1: Aptdaemon vulnerability - 17th December 2012
It was discovered that Aptdaemon incorrectly validated PPA GPG keys when importing from a keyserver. If a remote attacker were able to perform a man-in-the-middle attack, this flaw could be exploited to install altered package repository GPG keys.
USN-1589-2: GNU C Library regression - 17th December 2012
USN-1589-1 fixed vulnerabilities in the GNU C Library. One of the updates exposed a regression in the floating point parser. This update fixes the problem. We apologize for the inconvenience. Original advisory details: It was discovered that positional arguments to the printf() family of functions were not handled properly in ...
USN-1665-1: unity-firefox-extension vulnerability - 13th December 2012
It was discovered that unity-firefox-extension bypassed the same origin policy checks in certain circumstances. If a user were tricked into opening a malicious page, an attacker could exploit this to steal confidential data or perform other security-sensitive operations.
USN-1664-1: Linux kernel (EC2) vulnerability - 12th December 2012
Zhang Zuotao discovered a bug in the Linux kernel's handling of overlapping fragments in ipv6. A remote attacker could exploit this flaw to bypass firewalls and initial new network connections that should have been blocked by the firewall.
USN-1663-1: Nova vulnerability - 12th December 2012
Eric Windisch discovered that Nova did not properly clear LVM-backed images before they were reallocated which could potentially lead to an information leak. This issue only affected setups using libvirt LVM-backed instances.
USN-1662-1: APT vulnerability - 12th December 2012
It was discovered that APT set inappropriate permissions on the term.log file. A local attacker could use this flaw to possibly obtain sensitive information.
USN-1661-1: Linux kernel vulnerability - 10th December 2012
Zhang Zuotao discovered a bug in the Linux kernel's handling of overlapping fragments in ipv6. A remote attacker could exploit this flaw to bypass firewalls and initial new network connections that should have been blocked by the firewall.
USN-1660-1: Linux kernel vulnerability - 10th December 2012
Zhang Zuotao discovered a bug in the Linux kernel's handling of overlapping fragments in ipv6. A remote attacker could exploit this flaw to bypass firewalls and initial new network connections that should have been blocked by the firewall.
USN-1659-1: GIMP vulnerability - 10th December 2012
It was discovered that GIMP incorrectly handled malformed XWD files. If a user were tricked into opening a specially crafted XWD file, an attacker could cause GIMP to crash, or possibly execute arbitrary code with the user's privileges.
USN-1658-1: MySQL vulnerability - 10th December 2012
It was discovered that MySQL incorrectly handled certain long arguments. A remote authenticated attacker could use this issue to possibly execute arbitrary code.
USN-1657-1: Bind vulnerability - 6th December 2012
It was discovered that Bind incorrectly handled certain crafted queries when DNS64 was enabled. A remote attacker could use this flaw to cause Bind to crash, resulting in a denial of service.
USN-1656-1: Libxml2 vulnerability - 5th December 2012
It was discovered that libxml2 had a heap-based buffer underflow when parsing entities. If a user or automated system were tricked into processing a specially crafted XML document, applications linked against libxml2 could be made to crash or possibly execute arbitrary code.
USN-1655-1: LibTIFF vulnerability - 5th December 2012
It was discovered that LibTIFF incorrectly handled certain malformed images using the DOTRANGE tag. If a user or automated system were tricked into opening a specially crafted TIFF image, a remote attacker could crash the application, leading to a denial of service, or possibly execute arbitrary code with user privileges.
USN-1654-1: CUPS vulnerability - 5th December 2012
It was discovered that users in the lpadmin group could modify certain CUPS configuration options to escalate privileges. An attacker could use this to potentially gain root privileges.
USN-1653-1: Linux kernel (EC2) vulnerability - 4th December 2012
Rodrigo Freire discovered a flaw in the Linux kernel's TCP illinois congestion control algorithm. A local attacker could use this to cause a denial of service. (CVE-2012-4565) Mathias Krause discovered an information leak in the Linux kernel's TUN/TAP device driver. A local user could exploit this flaw to examine part ...
CVE-2012-4565 CVE-2012-6547 CVE-2013-0310 CVE-2013-1827
USN-1638-3: Firefox regressions - 3rd December 2012
USN-1638-1 fixed vulnerabilities in Firefox. The new packages introduced regressions in cookies handling and the User Agent string. This update fixes the problem. Original advisory details: Gary Kwong, Jesse Ruderman, Christian Holler, Bob Clary, Kyle Huey, Ed Morley, Chris Lord, Boris Zbarsky, Julian Seward, Bill McCloskey, and Andrew McCreight discovered ...
USN-1652-1: Linux kernel (Oneiric backport) vulnerabilities - 30th November 2012
Brad Spengler discovered a flaw in the Linux kernel's uname system call. An unprivileged user could exploit this flaw to read kernel stack memory. (CVE-2012-0957) Rodrigo Freire discovered a flaw in the Linux kernel's TCP illinois congestion control algorithm. A local attacker could use this to cause a denial of ...
CVE-2012-0957 CVE-2012-4565 CVE-2012-6536 CVE-2012-6537 CVE-2012-6538 CVE-2012-6539 CVE-2012-6540 CVE-2012-6541 CVE-2012-6542 CVE-2012-6544 CVE-2012-6545 CVE-2012-6546 CVE-2013-0309 CVE-2013-1826 CVE-2013-1928
USN-1651-1: Linux kernel vulnerability - 30th November 2012
Rodrigo Freire discovered a flaw in the Linux kernel's TCP illinois congestion control algorithm. A local attacker could use this to cause a denial of service. (CVE-2012-4565) Mathias Krause discovered an information leak in the Linux kernel's TUN/TAP device driver. A local user could exploit this flaw to examine part ...
CVE-2012-4565 CVE-2012-6547 CVE-2013-0310 CVE-2013-1827
USN-1650-1: Linux kernel vulnerability - 30th November 2012
Rodrigo Freire discovered a flaw in the Linux kernel's TCP illinois congestion control algorithm. A local attacker could use this to cause a denial of service.
USN-1649-1: Linux kernel (OMAP4) vulnerabilities - 30th November 2012
Brad Spengler discovered a flaw in the Linux kernel's uname system call. An unprivileged user could exploit this flaw to read kernel stack memory. (CVE-2012-0957) Rodrigo Freire discovered a flaw in the Linux kernel's TCP illinois congestion control algorithm. A local attacker could use this to cause a denial of ...
CVE-2012-0957 CVE-2012-4565 CVE-2012-6536 CVE-2012-6537 CVE-2012-6538 CVE-2012-6539 CVE-2012-6540 CVE-2012-6541 CVE-2012-6542 CVE-2012-6544 CVE-2012-6545 CVE-2012-6546 CVE-2013-0309 CVE-2013-1826 CVE-2013-1928
USN-1648-1: Linux kernel vulnerabilities - 30th November 2012
Brad Spengler discovered a flaw in the Linux kernel's uname system call. An unprivileged user could exploit this flaw to read kernel stack memory. (CVE-2012-0957) Rodrigo Freire discovered a flaw in the Linux kernel's TCP illinois congestion control algorithm. A local attacker could use this to cause a denial of ...
CVE-2012-0957 CVE-2012-4565 CVE-2012-6536 CVE-2012-6537 CVE-2012-6538 CVE-2012-6539 CVE-2012-6540 CVE-2012-6541 CVE-2012-6542 CVE-2012-6544 CVE-2012-6545 CVE-2012-6546 CVE-2013-0309 CVE-2013-1826 CVE-2013-1928
USN-1647-1: Linux kernel (OMAP4) vulnerabilities - 30th November 2012
Brad Spengler discovered a flaw in the Linux kernel's uname system call. An unprivileged user could exploit this flaw to read kernel stack memory. (CVE-2012-0957) Rodrigo Freire discovered a flaw in the Linux kernel's TCP illinois congestion control algorithm. A local attacker could use this to cause a denial of ...
CVE-2012-0957 CVE-2012-4565 CVE-2012-6536 CVE-2012-6537 CVE-2012-6538 CVE-2013-0309 CVE-2013-1826
USN-1646-1: Linux kernel vulnerabilities - 30th November 2012
Brad Spengler discovered a flaw in the Linux kernel's uname system call. An unprivileged user could exploit this flaw to read kernel stack memory. (CVE-2012-0957) Rodrigo Freire discovered a flaw in the Linux kernel's TCP illinois congestion control algorithm. A local attacker could use this to cause a denial of ...
CVE-2012-0957 CVE-2012-4565 CVE-2012-6536 CVE-2012-6537 CVE-2012-6538 CVE-2013-0309 CVE-2013-1826
USN-1645-1: Linux kernel (OMAP4) vulnerabilities - 30th November 2012
Brad Spengler discovered a flaw in the Linux kernel's uname system call. An unprivileged user could exploit this flaw to read kernel stack memory. (CVE-2012-0957) Dmitry Monakhov reported a race condition flaw the Linux ext4 filesystem that can expose stale data. An unprivileged user could exploit this flaw to cause ...
CVE-2012-0957 CVE-2012-4508 CVE-2012-4565 CVE-2012-6536 CVE-2012-6537 CVE-2012-6538 CVE-2013-0309 CVE-2013-1826 CVE-2013-1928