SB2013060801 - Permissions, Privileges, and Access Controls in Linux kernel
Published: June 8, 2013 Updated: August 11, 2020
Security Bulletin ID
SB2013060801
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2011-1585)
The vulnerability allows a remote non-authenticated attacker to read and manipulate data.
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.
Remediation
Install update from vendor's website.
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;a=commit;h=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