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CVE-2011-1585

Published: 6 October 2011

The cifs_find_smb_ses function in fs/cifs/connect.c in the Linux kernel before 2.6.36 does not properly determine the associations between users and sessions, which allows local users to bypass CIFS share authentication by leveraging a mount of a share by a different user.

From the Ubuntu security team

It was discovered that CIFS incorrectly handled authentication. When a user had a CIFS share mounted that required authentication, a local user could mount the same share without knowing the correct password.

Priority

Medium

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
hardy
Released (2.6.24-30.96)
lucid
Released (2.6.32-34.73)
maverick
Released (2.6.35-31.62)
natty Not vulnerable
(2.6.37-2.9)
oneiric Not vulnerable
(2.6.39-0.0)
precise Not vulnerable
(3.1.0-1.1)
upstream
Released (2.6.36~rc3)
linux-armadaxp
Launchpad, Ubuntu, Debian
hardy Does not exist

lucid Does not exist

natty Does not exist

oneiric Does not exist

precise Not vulnerable
(3.2.0-1600.1)
upstream
Released (2.6.36~rc3)
linux-ec2
Launchpad, Ubuntu, Debian
hardy Does not exist

lucid
Released (2.6.32-318.37)
maverick Ignored
(binary supplied by "linux" now)
natty Does not exist

oneiric Does not exist

precise Does not exist

upstream
Released (2.6.36~rc3)
linux-fsl-imx51
Launchpad, Ubuntu, Debian
hardy Does not exist

lucid
Released (2.6.31-612.30)
maverick Does not exist

natty Does not exist

oneiric Does not exist

precise Does not exist

upstream
Released (2.6.36~rc3)
linux-lts-backport-maverick
Launchpad, Ubuntu, Debian
hardy Does not exist

lucid
Released (2.6.35-31.62~lucid1)
maverick Does not exist

natty Does not exist

oneiric Does not exist

precise Does not exist

upstream
Released (2.6.36~rc3)
linux-lts-backport-natty
Launchpad, Ubuntu, Debian
hardy Does not exist

lucid
Released (2.6.38-1.27~lucid1)
maverick Does not exist

natty Does not exist

oneiric Does not exist

precise Does not exist

upstream
Released (2.6.36~rc3)
linux-lts-backport-oneiric
Launchpad, Ubuntu, Debian
hardy Does not exist

lucid Not vulnerable

maverick Does not exist

natty Does not exist

oneiric Does not exist

precise Does not exist

upstream
Released (2.6.36~rc3)
linux-mvl-dove
Launchpad, Ubuntu, Debian
hardy Does not exist

lucid
Released (2.6.32-218.35)
maverick
Released (2.6.32-418.35)
natty Does not exist

oneiric Does not exist

precise Does not exist

upstream
Released (2.6.36~rc3)
linux-ti-omap4
Launchpad, Ubuntu, Debian
hardy Does not exist

lucid Does not exist

maverick
Released (2.6.35-903.27)
natty Not vulnerable
(2.6.38-1201.2)
oneiric Not vulnerable
(2.6.38-1309.13)
precise Not vulnerable
(3.0.0-1401.2)
upstream
Released (2.6.36~rc3)