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Ubuntu 13.04 USN-2045-1 Moderate: Kernel Flaws Cause Remote Access Risks

ubuntu
Calendar Grey December 3, 2013
Scroller Ubuntu
A series of vulnerabilities related to kernel security were identified in Ubuntu 13.04, posing risks to system stability and compromising user information.
Several security issues were fixed in the kernel.

Summary

Several security issues were fixed in the kernel.

Software Description:

- linux: Linux kernel

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)

Topics%20covered

Topics Covered

security advisory denial of service remote access Ubuntu moderate severity kernel flaw

Update Instructions

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

Ubuntu 13.04:
  linux-image-3.8.0-34-generic    3.8.0-34.49

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

https://ubuntu.com/security/notices/USN-2045-1

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

December 03, 2013

Topics%20covered

Topics Covered

security advisory denial of service remote access Ubuntu moderate severity kernel flaw

Package Information

https://launchpad.net/ubuntu/+source/linux/3.8.0-34.49

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