CVE-2011-1585

Severity: low (CVSS 3.3 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2013-06-08 · updated 2026-06-16
Weakness: CWE-264

Description

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.

Affected products

Linux kernel: before 2.6.36 — fixed in 2.6.36
SUSE Linux Enterprise: 10-sp4

How to fix

Upgrade to a fixed version: Linux kernel 2.6.36. Check the vendor advisory for mitigations.

References

http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.36
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=4ff67b720c02c36e54d55b88c2931879b7db1cd2
http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00020.html
http://www.openwall.com/lists/oss-security/2011/04/15/8
https://bugzilla.redhat.com/show_bug.cgi?id=697394
https://github.com/torvalds/linux/commit/4ff67b720c02c36e54d55b88c2931879b7db1cd2
http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.36
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=4ff67b720c02c36e54d55b88c2931879b7db1cd2
http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00020.html
http://www.openwall.com/lists/oss-security/2011/04/15/8
https://bugzilla.redhat.com/show_bug.cgi?id=697394
https://github.com/torvalds/linux/commit/4ff67b720c02c36e54d55b88c2931879b7db1cd2

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