CVE-2012-5511: Buffer Overflow
First published: Thu Dec 13 2012(Updated: )
Stack-based buffer overflow in the dirty video RAM tracking functionality in Xen 3.4 through 4.1 allows local HVM guest OS administrators to cause a denial of service (crash) via a large bitmap image.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Xen xen-unstable | =3.4.0 | |
| Xen xen-unstable | =3.4.1 | |
| Xen xen-unstable | =3.4.2 | |
| Xen xen-unstable | =3.4.3 | |
| Xen xen-unstable | =3.4.4 | |
| Xen xen-unstable | =4.0.0 | |
| Xen xen-unstable | =4.0.1 | |
| Xen xen-unstable | =4.0.2 | |
| Xen xen-unstable | =4.0.3 | |
| Xen xen-unstable | =4.0.4 | |
| Xen xen-unstable | =4.1.0 |
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Reference Links
- http://lists.opensuse.org/opensuse-security-announce/2012-12/msg00001.html
- http://lists.opensuse.org/opensuse-security-announce/2012-12/msg00018.html
- http://lists.opensuse.org/opensuse-security-announce/2012-12/msg00019.html
- http://lists.opensuse.org/opensuse-security-announce/2013-01/msg00011.html
- http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00021.html
- http://lists.opensuse.org/opensuse-updates/2013-04/msg00051.html
- http://lists.opensuse.org/opensuse-updates/2013-04/msg00052.html
- http://secunia.com/advisories/51397
- http://secunia.com/advisories/51486
- http://secunia.com/advisories/51487
- http://secunia.com/advisories/55082
- http://security.gentoo.org/glsa/glsa-201309-24.xml
- http://support.citrix.com/article/CTX135777
- http://www.debian.org/security/2013/dsa-2636
- http://www.openwall.com/lists/oss-security/2012/12/03/10
- http://www.osvdb.org/88129
- http://www.securityfocus.com/bid/56796
- https://exchange.xforce.ibmcloud.com/vulnerabilities/80484
Frequently Asked Questions
What is the severity of CVE-2012-5511?
CVE-2012-5511 has a high severity rating as it allows local HVM guest OS administrators to crash the system.
How do I fix CVE-2012-5511?
To fix CVE-2012-5511, upgrade to a version of Xen that has addressed this vulnerability, specifically versions beyond 4.1.
Which versions of Xen are affected by CVE-2012-5511?
CVE-2012-5511 affects Xen versions 3.4.0 through 4.1.0.
What kind of attack does CVE-2012-5511 facilitate?
CVE-2012-5511 facilitates a Denial of Service (DoS) attack by exploiting a stack-based buffer overflow.
Who is vulnerable to CVE-2012-5511?
Local HVM guest OS administrators are vulnerable to CVE-2012-5511 as they can trigger the buffer overflow.
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- vendor/xen
- canonical/xen xen-unstable
- version/xen xen-unstable/3.4.0
- version/xen xen-unstable/3.4.1
- version/xen xen-unstable/3.4.2
- version/xen xen-unstable/3.4.3
- version/xen xen-unstable/3.4.4
- version/xen xen-unstable/4.0.0
- version/xen xen-unstable/4.0.1
- version/xen xen-unstable/4.0.2
- version/xen xen-unstable/4.0.3
- version/xen xen-unstable/4.0.4
- version/xen xen-unstable/4.1.0