Resource management error in Xen - CVE-2012-3433
Published: November 24, 2012 / Updated: July 28, 2020
Vulnerability identifier: #VU32757
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2012-3433
CWE-ID: CWE-399
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Xen Project
Affected software:
Xen
Xen
Detailed vulnerability description
The vulnerability allows a local non-authenticated attacker to perform a denial of service (DoS) attack.
Xen 4.0 and 4.1 allows local HVM guest OS kernels to cause a denial of service (domain 0 VCPU hang and kernel panic) by modifying the physical address space in a way that triggers excessive shared page search time during the p2m teardown.
How to mitigate CVE-2012-3433
Install update from vendor's website.
Sources
- http://lists.opensuse.org/opensuse-security-announce/2012-08/msg00024.html
- http://lists.opensuse.org/opensuse-security-announce/2012-08/msg00025.html
- http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00017.html
- http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00018.html
- http://lists.xen.org/archives/html/xen-devel/2012-08/msg00855.html
- http://secunia.com/advisories/55082
- http://security.gentoo.org/glsa/glsa-201309-24.xml
- http://www.debian.org/security/2012/dsa-2531
- http://www.openwall.com/lists/oss-security/2012/08/09/3
- http://www.securityfocus.com/bid/54942