CVE-2012-4537

Description

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."

Category

2.1
CVSS
Severity: Low
CVSS 2.0 •
EPSS 0.11%
Vendor Advisory redhat.com Vendor Advisory opensuse.org Vendor Advisory gentoo.org Vendor Advisory debian.org Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory gentoo.org Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory xen.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://rhn.redhat.com/errata/RHSA-2012-1540.html vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2014-04/msg00000.html vendor advisory
http://secunia.com/advisories/55082 third party advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/80024 vdb entry
http://www.openwall.com/lists/oss-security/2012/11/13/6 mailing list
http://secunia.com/advisories/51413 third party advisory
http://secunia.com/advisories/51200 third party advisory
http://security.gentoo.org/glsa/glsa-201309-24.xml vendor advisory
http://www.debian.org/security/2012/dsa-2582 vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00008.html vendor advisory
http://lists.xen.org/archives/html/xen-announce/2012-11/msg00005.html mailing list vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00017.html vendor advisory
http://secunia.com/advisories/51468 third party advisory
http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00009.html vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00021.html vendor advisory
http://secunia.com/advisories/51352 third party advisory
http://secunia.com/advisories/51324 third party advisory
https://security.gentoo.org/glsa/201604-03 vendor advisory
http://www.securityfocus.com/bid/56498 vdb entry
http://lists.opensuse.org/opensuse-security-announce/2012-12/msg00001.html vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00018.html vendor advisory
http://osvdb.org/87307 vdb entry
http://www.securitytracker.com/id?1027761 vdb entry

Frequently Asked Questions

What is the severity of CVE-2012-4537?
CVE-2012-4537 has been scored as a low severity vulnerability.
How to fix CVE-2012-4537?
To fix CVE-2012-4537, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2012-4537 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2012-4537 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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