Buffer overflow in Linux kernel - CVE-2013-4591
Published: November 20, 2013 / Updated: August 10, 2020
Vulnerability identifier: #VU42353
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2013-4591
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 __nfs4_get_acl_uncached function in fs/nfs/nfs4proc.c in the Linux kernel before 3.7.2 allows local users to cause a denial of service (memory corruption and system crash) or possibly have unspecified other impact via a getxattr system call for the system.nfs4_acl extended attribute of a pathname on an NFSv4 filesystem.
How to mitigate CVE-2013-4591
Install update from vendor's website.
Sources
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=7d3e91a89b7adbc2831334def9e494dd9892f9af
- http://rhn.redhat.com/errata/RHSA-2013-1645.html
- http://rhn.redhat.com/errata/RHSA-2014-0284.html
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.7.2
- http://www.openwall.com/lists/oss-security/2013/11/18/2
- http://www.securityfocus.com/bid/63791
- https://bugzilla.redhat.com/show_bug.cgi?id=1031678
- https://github.com/torvalds/linux/commit/7d3e91a89b7adbc2831334def9e494dd9892f9af