SB2012012705 - Buffer overflow in Linux kernel
Published: January 27, 2012 Updated: August 11, 2020
Security Bulletin ID
SB2012012705
Severity
High
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Buffer overflow (CVE-ID: CVE-2011-4077)
The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.
Buffer overflow in the xfs_readlink function in fs/xfs/xfs_vnodeops.c in XFS in the Linux kernel 2.6, when CONFIG_XFS_DEBUG is disabled, allows local users to cause a denial of service (memory corruption and crash) and possibly execute arbitrary code via an XFS image containing a symbolic link with a long pathname.
Remediation
Install update from vendor's website.
References
- http://marc.info/?l=bugtraq&m=139447903326211&w=2
- http://oss.sgi.com/archives/xfs/2011-10/msg00345.html
- http://secunia.com/advisories/48964
- http://www.openwall.com/lists/oss-security/2011/10/26/1
- http://www.openwall.com/lists/oss-security/2011/10/26/3
- http://xorl.wordpress.com/2011/12/07/cve-2011-4077-linux-kernel-xfs-readlink-memory-corruption/
- https://bugzilla.redhat.com/show_bug.cgi?id=749156