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[USN-1749-1] Linux kernel (Quantal HWE) vulnerability

Posted on 26 February 2013
Ubuntu Security

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Ubuntu Security Notice USN-1749-1
February 26, 2013

linux-lts-quantal vulnerability
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A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 12.04 LTS

Summary:

The system could be made to crash or run programs as an administrator.

Software Description:
- linux-lts-quantal: Linux hardware enablement kernel from Quantal

Details:

Brad Spengler discovered a bounds checking error for netlink messages
requesting SOCK_DIAG_BY_FAMILY. An unprivileged local user could exploit
this flaw to crash the system or run programs as an administrator.

Update instructions:

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

Ubuntu 12.04 LTS:
linux-image-3.5.0-25-generic 3.5.0-25.39~precise1

After a standard system update you need to reboot your computer to make
all the necessary changes.

References:
http://www.ubuntu.com/usn/usn-1749-1
CVE-2013-1763

Package Information:
https://launchpad.net/ubuntu/+source/linux-lts-quantal/3.5.0-25.39~prec=
ise1


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