Home / mailings [USN-1969-1] Linux kernel (OMAP4) vulnerabilities
Posted on 27 September 2013
Ubuntu Security==========================
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Ubuntu Security Notice USN-1969-1
September 27, 2013
linux-ti-omap4 vulnerabilities
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A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 12.04 LTS
Summary:
Several security issues were fixed in the kernel.
Software Description:
- linux-ti-omap4: Linux kernel for OMAP4
Details:
Vince Weaver discovered a flaw in the perf subsystem of the Linux kernel =
on
ARM platforms. A local user could exploit this flaw to gain privileges or=
cause a denial of service (system crash). (CVE-2013-4254)
A failure to validate block numbers was discovered in the Linux kernel's
implementation of the XFS filesystem. A local user can cause a denial of
service (system crash) if they can mount, or cause to be mounted a
corrupted or special crafted XFS filesystem. (CVE-2013-1819)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 12.04 LTS:
linux-image-3.2.0-1438-omap4 3.2.0-1438.57
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 automaticall=
y
perform this as well.
References:
http://www.ubuntu.com/usn/usn-1969-1
CVE-2013-1819, CVE-2013-4254
Package Information:
https://launchpad.net/ubuntu/+source/linux-ti-omap4/3.2.0-1438.57
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