Heap-based buffer overflow in Linux kernel - CVE-2012-0038
Published: May 17, 2012 / Updated: August 11, 2020
Vulnerability identifier: #VU44077
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2012-0038
CWE-ID: CWE-122
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in Integer overflow in the xfs_acl_from_disk function in fs/xfs/xfs_acl.c in the Linux kernel before 3.1.9. A remote attacker can use a filesystem with a malformed ACL to trigger heap-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
How to mitigate CVE-2012-0038
Update to version 3.1.9.
Sources
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=093019cf1b18dd31b2c3b77acce4e000e2cbc9ce
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=fa8b18edd752a8b4e9d1ee2cd615b82c93cf8bba
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.1.9
- http://www.openwall.com/lists/oss-security/2012/01/10/11
- https://bugzilla.redhat.com/show_bug.cgi?id=773280
- https://github.com/torvalds/linux/commit/093019cf1b18dd31b2c3b77acce4e000e2cbc9ce
- https://github.com/torvalds/linux/commit/fa8b18edd752a8b4e9d1ee2cd615b82c93cf8bba