Several security issues were fixed in the kernel.
Pinkie Pie discovered a flaw in the Linux kernel’s futex subsystem. An unprivileged local user could exploit this flaw to cause a denial of service (system crash) or gain administrative privileges. (CVE-2014-3153)
5 June 2014
A security issue affects these releases of Ubuntu and its derivatives:
Several security issues were fixed in the kernel.
Pinkie Pie discovered a flaw in the Linux kernel’s futex subsystem. An unprivileged local user could exploit this flaw to cause a denial of service (system crash) or gain administrative privileges. (CVE-2014-3153)
Dmitry Vyukov reported a flaw in the Linux kernel’s handling of IPv6 UDP Fragmentation Offload (UFO) processing. A remote attacker could leverage this flaw to cause a denial of service (system crash). (CVE-2013-4387)
Hannes Frederic Sowa discovered a flaw in the Linux kernel’s UDP Fragmentation Offload (UFO). An unprivileged local user could exploit this flaw to cause a denial of service (system crash) or possibly gain administrative privileges. (CVE-2013-4470)
A flaw was discovered in the Linux kernel’s IPC reference counting. An unprivileged local user could exploit this flaw to cause a denial of service (OOM system crash). (CVE-2013-4483)
halfdog reported an error in the AMD K7 and K8 platform support in the Linux kernel. An unprivileged local user could exploit this flaw on AMD based systems to cause a denial of service (task kill) or possibly gain privileges via a crafted application. (CVE-2014-1438)
Sasha Levin reported a bug in the Linux kernel’s virtual memory management subsystem. An unprivileged local user could exploit this flaw to cause a denial of service (system crash). (CVE-2014-3122)
The problem can be corrected by updating your system to the following package versions:
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
After a standard system update you need to reboot your computer to make all the necessary changes.
ATTENTION: Due to an unavoidable ABI change the kernel updates have been given a new version number, which requires you to recompile and reinstall all third party kernel modules you might have installed. If you use linux-restricted-modules, you have to update that package as well to get modules which work with the new kernel version. Unless you manually uninstalled the standard kernel metapackages (e.g. linux-generic, linux-server, linux-powerpc), a standard system upgrade will automatically perform this as well.
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