CVE-2012-4537
First published: Wed Nov 21 2012(Updated: )
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."
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Xen XAPI | =3.4.0 | |
| Xen XAPI | =3.4.1 | |
| Xen XAPI | =3.4.2 | |
| Xen XAPI | =3.4.3 | |
| Xen XAPI | =3.4.4 | |
| Xen XAPI | =4.0.0 | |
| Xen XAPI | =4.0.1 | |
| Xen XAPI | =4.0.2 | |
| Xen XAPI | =4.0.3 | |
| Xen XAPI | =4.0.4 | |
| Xen XAPI | =4.1.0 | |
| Xen XAPI | =4.1.1 | |
| Xen XAPI | =4.1.2 | |
| Xen XAPI | =4.1.3 | |
| Xen XAPI | =4.2.0 |
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Reference Links
- 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
Frequently Asked Questions
What is the severity of CVE-2012-4537?
CVE-2012-4537 has been classified as a denial of service vulnerability that could lead to memory consumption and assertion failure.
How do I fix CVE-2012-4537?
To mitigate CVE-2012-4537, users should upgrade to the latest available version of Xen that contains the necessary patches.
Which versions of Xen are affected by CVE-2012-4537?
CVE-2012-4537 affects Xen versions from 3.4 to 4.2, including specific releases like 3.4.0 to 4.2.0.
What kind of attack can exploit CVE-2012-4537?
An attacker with local administrative access to a guest HVM OS can exploit CVE-2012-4537 to cause a denial of service.
Is CVE-2012-4537 related to memory management issues?
Yes, CVE-2012-4537 relates to improper synchronization of memory mapping tables, which can lead to significant memory issues.
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- agent/references
- agent/author
- agent/last-modified-date
- agent/weakness
- agent/description
- agent/event
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- agent/source
- agent/tags
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- collector/nvd-index
- agent/software-canonical-lookup-request
- vendor/xen
- canonical/xen xapi
- version/xen xapi/3.4.0
- version/xen xapi/3.4.1
- version/xen xapi/3.4.2
- version/xen xapi/3.4.3
- version/xen xapi/3.4.4
- version/xen xapi/4.0.0
- version/xen xapi/4.0.1
- version/xen xapi/4.0.2
- version/xen xapi/4.0.3
- version/xen xapi/4.0.4
- version/xen xapi/4.1.0
- version/xen xapi/4.1.1
- version/xen xapi/4.1.2
- version/xen xapi/4.1.3
- version/xen xapi/4.2.0