Buffer overflow in Linux kernel - CVE-2011-4077
Published: January 27, 2012 / Updated: August 11, 2020
Vulnerability identifier: #VU44351
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2011-4077
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
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.
How to mitigate CVE-2011-4077
Install update from vendor's website.
Sources
- 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