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CVE-2013-4470

Published: 4 November 2013

The Linux kernel before 3.12, when UDP Fragmentation Offload (UFO) is enabled, does not properly initialize certain data structures, which allows local users to cause a denial of service (memory corruption and system crash) or possibly gain privileges via a crafted application that uses the UDP_CORK option in a setsockopt system call and sends both short and long packets, related to the ip_ufo_append_data function in net/ipv4/ip_output.c and the ip6_ufo_append_data function in net/ipv6/ip6_output.c.

From the Ubuntu security team

Hannes Frederic Sowa discovered a flaw in the Linux kernel's UDP Fragmentation Offload (UFO). An unprivileged local user could exploit this flaw to cause a denial of service (system crash) or possibly gain administrative privileges.

Priority

Medium

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
upstream
Released (3.12~rc7)
Patches:
Introduced by

e89e9cf539a28df7d0eb1d0a545368e9920b34ac

Fixed by c547dbf55d5f8cf615ccc0e7265e98db27d3fb8b
Introduced by

e89e9cf539a28df7d0eb1d0a545368e9920b34ac

Fixed by e93b7d748be887cd7639b113ba7d7ef792a7efb9
linux-armadaxp
Launchpad, Ubuntu, Debian
upstream
Released (3.12~rc7)
This package is not directly supported by the Ubuntu Security Team
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upstream
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linux-ec2
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linux-flo
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linux-fsl-imx51
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linux-gke
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linux-goldfish
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linux-grouper
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linux-hwe-edge
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linux-linaro-omap
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linux-linaro-shared
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linux-lts-quantal
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linux-lts-raring
Launchpad, Ubuntu, Debian
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linux-lts-saucy
Launchpad, Ubuntu, Debian
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linux-lts-trusty
Launchpad, Ubuntu, Debian
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linux-lts-utopic
Launchpad, Ubuntu, Debian
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linux-lts-vivid
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linux-lts-wily
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linux-lts-xenial
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linux-maguro
Launchpad, Ubuntu, Debian
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linux-mako
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linux-manta
Launchpad, Ubuntu, Debian
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linux-mvl-dove
Launchpad, Ubuntu, Debian
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linux-qcm-msm
Launchpad, Ubuntu, Debian
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Launchpad, Ubuntu, Debian
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Launchpad, Ubuntu, Debian
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Launchpad, Ubuntu, Debian
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