Canonical announced that a couple of vulnerabilities had been found in the Linux kernel packages, this time affecting the OMAP4 kernel of the Ubuntu 12.10 (Quantal Quetzal) operating system.The CVE-2012-0957 and CVE-2012-4565 Linux kernel vulnerabilities affected Ubuntu 12.10 (Quantal Quetzal) OMAP4.
According to Canonical, two security issues were fixed in the kernel. For example, a flaw was discovered in the Linux kernel's uname system call. An unprivileged user could have exploited this flaw to read the kernel stack memory.
A complete description of the vulnerabilities can be found in the Ubuntu Security Notice.
The security flaws can be fixed if you upgrade your system to the linux-image-3.5.0-215-omap4 package. Don't forget to reboot your computer after the upgrade!
ATTENTION: Due to an unavoidable ABI change, the kernel packages have a new version number, which will force you to reinstall and recompile all third-party kernel modules you might have installed. Moreover, if you use the linux-restricted-modules package, you have to update it as well to get modules that work with the new Linux kernel version.