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CVE-2013-1772

Published: 28 February 2013

The log_prefix function in kernel/printk.c in the Linux kernel 3.x before 3.4.33 does not properly remove a prefix string from a syslog header, which allows local users to cause a denial of service (buffer overflow and system crash) by leveraging /dev/kmsg write access and triggering a call_console_drivers function call.

From the Ubuntu security team

A buffer overflow was discovered in the Linux kernel's /dev/kmesg device. A local user could exploit this flaw to cause a denial of service (system crash).

Priority

Medium

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
upstream
Released (3.5~rc1)
Patches:
Introduced by

162a7e7500f9664636e649ba59defe541b7c2c60

Fixed by 7ff9554bb578ba02166071d2d487b7fc7d860d62
linux-armadaxp
Launchpad, Ubuntu, Debian
upstream
Released (3.5~rc1)
This package is not directly supported by the Ubuntu Security Team
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linux-lts-raring
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linux-lts-trusty
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linux-lts-utopic
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linux-lts-vivid
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linux-lts-wily
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