USN-2041-1: Linux kernel (Raring HWE) vulnerabilities

Ubuntu Security Notice USN-2041-1

3rd December, 2013

linux-lts-raring vulnerabilities

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-lts-raring - Linux hardware enablement kernel from Raring

Details

A flaw was discovered in the Linux kernel's dm snapshot facility. A remote

authenticated user could exploit this flaw to obtain sensitive information

or modify/corrupt data. (CVE-2013-4299)

Alan Chester reported a flaw in the IPv6 Stream Control Transmission

Protocol (SCTP) of the Linux kernel. A remote attacker could exploit this

flaw to obtain sensitive information by sniffing network traffic.

(CVE-2013-4350)

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)

Update instructions

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

Ubuntu 12.04 LTS:

linux-image-3.8.0-34-generic 3.8.0-34.49~precise1

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.

References

CVE-2013-4299, CVE-2013-4350, CVE-2013-4387

via Ubuntu Security Notices http://www.ubuntu.com/usn/usn-2041-1/