Input validation error in Linux kernel - CVE-2013-0311
Published: February 22, 2013 / Updated: February 13, 2023
Vulnerability identifier: #VU94162
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:A/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2013-0311
CWE-ID: CWE-20
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a remote user to execute arbitrary code.
The translate_desc function in drivers/vhost/vhost.c in the Linux kernel before 3.7 does not properly handle cross-region descriptors, which allows guest OS users to obtain host OS privileges by leveraging KVM guest OS privileges.
How to mitigate CVE-2013-0311
Install update from vendor's website.
Sources
- https://github.com/torvalds/linux/commit/bd97120fc3d1a11f3124c7c9ba1d91f51829eb85
- http://www.openwall.com/lists/oss-security/2013/02/20/6
- http://www.kernel.org/pub/linux/kernel/v3.x/patch-3.7.bz2
- https://bugzilla.redhat.com/show_bug.cgi?id=912905
- http://rhn.redhat.com/errata/RHSA-2013-0496.html
- http://rhn.redhat.com/errata/RHSA-2013-0579.html
- http://rhn.redhat.com/errata/RHSA-2013-0882.html
- http://rhn.redhat.com/errata/RHSA-2013-0928.html
- http://www.mandriva.com/security/advisories?name=MDVSA-2013:176
- http://lists.opensuse.org/opensuse-security-announce/2013-07/msg00018.html
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=bd97120fc3d1a11f3124c7c9ba1d91f51829eb85