USN-1575-1: Linux kernel (Oneiric backport) vulnerabilities
19 September 2012
Several security issues were fixed in the kernel.
Releases
Packages
- linux-lts-backport-oneiric - Linux kernel backport from Oneiric
Details
Ben Hutchings reported a flaw in the Linux kernel with some network drivers
that support TSO (TCP segment offload). A local or peer user could exploit
this flaw to to cause a denial of service. (CVE-2012-3412)
Jay Fenlason and Doug Ledford discovered a bug in the Linux kernel
implementation of RDS sockets. A local unprivileged user could potentially
use this flaw to read privileged information from the kernel.
(CVE-2012-3430)
Update instructions
The problem can be corrected by updating your system to the following package versions:
Ubuntu 10.04
-
linux-image-3.0.0-26-server
-
3.0.0-26.42~lucid1
-
linux-image-3.0.0-26-generic
-
3.0.0-26.42~lucid1
-
linux-image-3.0.0-26-virtual
-
3.0.0-26.42~lucid1
-
linux-image-3.0.0-26-generic-pae
-
3.0.0-26.42~lucid1
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.