CVE-2014-1896: Input Validation
First published: Tue Apr 01 2014(Updated: )
The (1) do_send and (2) do_recv functions in io.c in libvchan in Xen 4.2.x, 4.3.x, and 4.4-RC series allows local guests to cause a denial of service or possibly gain privileges via crafted xenstore ring indexes, which triggers a "read or write past the end of the ring."
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 | =4.3.0 | |
| Xen xen-unstable | =4.3.1 | |
| Xen xen-unstable | =4.4.0-rc1 |
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Reference Links
- http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00011.html
- http://security.gentoo.org/glsa/glsa-201407-03.xml
- http://www.openwall.com/lists/oss-security/2014/02/07/12
- http://www.openwall.com/lists/oss-security/2014/02/10/7
- http://xenbits.xen.org/xsa/advisory-86.html
- http://xenbits.xen.org/xsa/xsa86.patch
Frequently Asked Questions
What is the severity of CVE-2014-1896?
CVE-2014-1896 has a moderate severity level as it can lead to denial of service and potential privilege escalation.
How do I fix CVE-2014-1896?
To fix CVE-2014-1896, upgrade to a patched version of Xen beyond 4.4-RC.
What versions of Xen are affected by CVE-2014-1896?
Xen versions 4.2.x, 4.3.x, and 4.4-RC are affected by CVE-2014-1896.
Can CVE-2014-1896 lead to data compromise?
While CVE-2014-1896 primarily causes denial of service, it may also allow an attacker to gain unauthorized privileges.
Is CVE-2014-1896 a remote or local vulnerability?
CVE-2014-1896 is a local vulnerability that affects guests within the Xen environment.
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- agent/remedy
- collector/mitre-cve
- source/MITRE
- agent/author
- agent/weakness
- agent/severity
- agent/last-modified-date
- agent/description
- agent/first-publish-date
- agent/event
- agent/source
- agent/tags
- collector/nvd-index
- agent/software-canonical-lookup-request
- vendor/xen
- canonical/xen xen-unstable
- version/xen xen-unstable/4.2.0
- version/xen xen-unstable/4.2.1
- version/xen xen-unstable/4.2.2
- version/xen xen-unstable/4.2.3
- version/xen xen-unstable/4.3.0
- version/xen xen-unstable/4.3.1
- version/xen xen-unstable/4.4.0-rc1