USN-1698-1: Linux kernel (OMAP4) vulnerabilities

Releases

• Ubuntu 12.04

Packages

• linux-ti-omap4 - Linux kernel for OMAP4

Details

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. (CVE-2012-4530)

Florian Weimer discovered that hypervkvpd, which is distributed in the
Linux kernel, was not correctly validating source addresses of netlink
packets. An untrusted local user can cause a denial of service by causing
hypervkvpd to exit. (CVE-2012-5532)

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 12.04

• linux-image-3.2.0-1424-omap4 - 3.2.0-1424.32

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.

References

• CVE-2012-4530
• CVE-2012-5532

Related notices

• USN-1700-1
• USN-1689-1
• USN-1683-1
• USN-1696-1
• USN-1704-1
• USN-1688-1
• USN-1684-1
• USN-1699-1
• USN-1691-1
• USN-1720-1
• USN-1726-1