Configuration in Xen - CVE-2012-4537
Published: November 22, 2012 / Updated: July 28, 2020
Vulnerability identifier: #VU32734
CSH Severity: Low
CVSS v4: 5.1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2012-4537
CWE-ID: CWE-16
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local non-authenticated attacker to perform service disruption.
Xen 3.4 through 4.2, and possibly earlier versions, does not properly synchronize the p2m and m2p tables when the set_p2m_entry function fails, which allows local HVM guest OS administrators to cause a denial of service (memory consumption and assertion failure), aka "Memory mapping failure DoS vulnerability."
Affected software
Xen
Gentoo Linux
SUSE Linux
xen (Alpine package)
app-emulation/xen
app-emulation/xen-pvgrub
app-emulation/xen-tools
Gentoo Linux
SUSE Linux
xen (Alpine package)
app-emulation/xen
app-emulation/xen-pvgrub
app-emulation/xen-tools
How to mitigate CVE-2012-4537
Install update from vendor's website.
xen (Alpine package) - update to 4.1.3-r1
app-emulation/xen - update to 4.2.2-r1
app-emulation/xen-pvgrub - update to 4.2.2-r1
app-emulation/xen-tools - update to 4.2.2-r3
app-emulation/xen - update to 4.2.2-r1
app-emulation/xen-pvgrub - update to 4.2.2-r1
app-emulation/xen-tools - update to 4.2.2-r3
External References
- http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00008.html
- http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00009.html
- http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00017.html
- http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00018.html
- http://lists.opensuse.org/opensuse-security-announce/2012-12/msg00001.html
- http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00021.html
- http://lists.opensuse.org/opensuse-security-announce/2014-04/msg00000.html
- http://lists.xen.org/archives/html/xen-announce/2012-11/msg00005.html
- http://osvdb.org/87307
- http://rhn.redhat.com/errata/RHSA-2012-1540.html
- http://secunia.com/advisories/51200
- http://secunia.com/advisories/51324
- http://secunia.com/advisories/51352
- http://secunia.com/advisories/51413
- http://secunia.com/advisories/51468
- http://secunia.com/advisories/55082
- http://security.gentoo.org/glsa/glsa-201309-24.xml
- http://www.debian.org/security/2012/dsa-2582
- http://www.openwall.com/lists/oss-security/2012/11/13/6
- http://www.securityfocus.com/bid/56498
- http://www.securitytracker.com/id?1027761
- https://exchange.xforce.ibmcloud.com/vulnerabilities/80024
- https://security.gentoo.org/glsa/201604-03