CVE-2014-3967: Null Pointer Dereference
First published: Thu Jun 05 2014(Updated: )
The HVMOP_inject_msi function in Xen 4.2.x, 4.3.x, and 4.4.x does not properly check the return value from the IRQ setup check, which allows local HVM guest administrators to cause a denial of service (NULL pointer dereference and crash) via unspecified vectors.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Xen xen-unstable | =4.2.0 | |
| Xen xen-unstable | =4.2.1 | |
| Xen xen-unstable | =4.2.2 | |
| Xen xen-unstable | =4.2.3 | |
| Xen xen-unstable | =4.4.0 | |
| Xen xen-unstable | =4.4.0-rc1 | |
| openSUSE | =12.3 | |
| openSUSE | =13.1 | |
| Xen xen-unstable | =4.3.0 | |
| Xen xen-unstable | =4.3.1 |
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Reference Links
- http://lists.fedoraproject.org/pipermail/package-announce/2014-June/134710.html
- http://lists.fedoraproject.org/pipermail/package-announce/2014-June/134739.html
- http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00002.html
- http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00003.html
- http://www.openwall.com/lists/oss-security/2014/06/04/13
- http://www.securityfocus.com/bid/67794
- http://www.securitytracker.com/id/1030322
- http://xenbits.xen.org/xsa/advisory-96.html
- https://security.gentoo.org/glsa/201504-04
Frequently Asked Questions
What is the severity of CVE-2014-3967?
CVE-2014-3967 is considered a high-severity vulnerability due to its potential to cause a denial of service.
How do I fix CVE-2014-3967?
To mitigate CVE-2014-3967, it is recommended to update Xen to the latest patched version that addresses this vulnerability.
What versions of Xen are affected by CVE-2014-3967?
CVE-2014-3967 affects Xen versions 4.2.x, 4.3.x, and 4.4.x, including specific releases like 4.2.0 through 4.2.3 and all 4.4.0 versions.
Who can exploit CVE-2014-3967?
Local HVM guest administrators can exploit CVE-2014-3967 to trigger its denial of service condition.
What impact does CVE-2014-3967 have on system stability?
CVE-2014-3967 can lead to a null pointer dereference, causing a crash and resulting in instability of the affected system.
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- version/xen xen-unstable/4.2.2
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- version/xen xen-unstable/4.4.0
- version/xen xen-unstable/4.4.0-rc1
- vendor/opensuse
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- version/opensuse/12.3
- version/opensuse/13.1
- version/xen xen-unstable/4.3.0
- version/xen xen-unstable/4.3.1