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CVE-2012-2375

Published: 13 June 2012

The __nfs4_get_acl_uncached function in fs/nfs/nfs4proc.c in the NFSv4 implementation in the Linux kernel before 3.3.2 uses an incorrect length variable during a copy operation, which allows remote NFS servers to cause a denial of service (OOPS) by sending an excessive number of bitmap words in an FATTR4_ACL reply. NOTE: this vulnerability exists because of an incomplete fix for CVE-2011-4131.

From the Ubuntu security team

A flaw was discovered in the Linux kernel's NFSv4 (Network file system) handling of ACLs (access control lists). A remote NFS server (attacker) could cause a denial of service (OOPS).

Priority

Medium

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
Upstream
Released (3.4~rc6)
Ubuntu 14.04 ESM (Trusty Tahr) Not vulnerable
(3.11.0-12.19)
Patches:
Introduced by 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Fixed by 20e0fa98b751facf9a1101edaefbc19c82616a68
Introduced by 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Fixed by 5794d21ef4639f0e33440927bb903f9598c21e92
Introduced by 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Fixed by 5a00689930ab975fdd1b37b034475017e460cf2a
linux-armadaxp
Launchpad, Ubuntu, Debian
Upstream
Released (3.4~rc6)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-ec2
Launchpad, Ubuntu, Debian
Upstream
Released (3.4~rc6)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-flo
Launchpad, Ubuntu, Debian
Upstream
Released (3.4~rc6)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist
(trusty was not-affected [3.4.0-1.3])
linux-fsl-imx51
Launchpad, Ubuntu, Debian
Upstream
Released (3.4~rc6)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-goldfish
Launchpad, Ubuntu, Debian
Upstream
Released (3.4~rc6)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist
(trusty was not-affected [3.4.0-1.9])
linux-grouper
Launchpad, Ubuntu, Debian
Upstream
Released (3.4~rc6)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist
(trusty was not-affected [code-not-present])
linux-linaro-omap
Launchpad, Ubuntu, Debian
Upstream
Released (3.4~rc6)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-linaro-shared
Launchpad, Ubuntu, Debian
Upstream
Released (3.4~rc6)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-linaro-vexpress
Launchpad, Ubuntu, Debian
Upstream
Released (3.4~rc6)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-lts-backport-maverick
Launchpad, Ubuntu, Debian
Upstream
Released (3.4~rc6)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-lts-backport-natty
Launchpad, Ubuntu, Debian
Upstream
Released (3.4~rc6)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-lts-backport-oneiric
Launchpad, Ubuntu, Debian
Upstream
Released (3.4~rc6)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-lts-quantal
Launchpad, Ubuntu, Debian
Upstream
Released (3.4~rc6)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-lts-raring
Launchpad, Ubuntu, Debian
Upstream
Released (3.4~rc6)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-lts-saucy
Launchpad, Ubuntu, Debian
Upstream
Released (3.4~rc6)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-lts-trusty
Launchpad, Ubuntu, Debian
Upstream
Released (3.4~rc6)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-maguro
Launchpad, Ubuntu, Debian
Upstream
Released (3.4~rc6)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist
(trusty was not-affected [code-not-present])
linux-mako
Launchpad, Ubuntu, Debian
Upstream
Released (3.4~rc6)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist
(trusty was not-affected [3.4.0-3.21])
linux-manta
Launchpad, Ubuntu, Debian
Upstream
Released (3.4~rc6)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist
(trusty was not-affected [3.4.0-4.19])
linux-mvl-dove
Launchpad, Ubuntu, Debian
Upstream
Released (3.4~rc6)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-qcm-msm
Launchpad, Ubuntu, Debian
Upstream
Released (3.4~rc6)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-ti-omap4
Launchpad, Ubuntu, Debian
Upstream
Released (3.4~rc6)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist