CVE-2013-1922
First published: Mon May 13 2013(Updated: )
qemu-nbd in QEMU, as used in Xen 4.2.x, determines the format of a raw disk image based on the header, which allows local guest OS administrators to read arbitrary files on the host by modifying the header to identify a different format, which is used when the guest is restarted, a different vulnerability than CVE-2008-2004.
Credit: secalert@redhat.com
| 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 |
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Reference Links
- http://lists.fedoraproject.org/pipermail/package-announce/2013-April/103621.html
- http://lists.fedoraproject.org/pipermail/package-announce/2013-April/103637.html
- http://lists.fedoraproject.org/pipermail/package-announce/2013-April/104036.html
- http://secunia.com/advisories/55082
- http://security.gentoo.org/glsa/glsa-201309-24.xml
- http://www.openwall.com/lists/oss-security/2013/04/15/3
- http://www.openwall.com/lists/oss-security/2013/04/16/2
- http://www.securitytracker.com/id/1028426
Frequently Asked Questions
What is the severity of CVE-2013-1922?
CVE-2013-1922 is considered a medium severity vulnerability due to the capability of local guest OS administrators to read arbitrary files on the host.
How do I fix CVE-2013-1922?
To fix CVE-2013-1922, update your QEMU and Xen installations to versions later than 4.2.2 that address this vulnerability.
Who is affected by CVE-2013-1922?
CVE-2013-1922 affects users running Xen versions 4.2.0, 4.2.1, and 4.2.2 on systems that utilize qemu-nbd.
What types of systems are vulnerable to CVE-2013-1922?
Systems using Xen hypervisor versions 4.2.x, which employ qemu-nbd for disk image management, are potentially vulnerable to CVE-2013-1922.
What is the impact of CVE-2013-1922?
The impact of CVE-2013-1922 allows unauthorized access to host files by exploiting the disk image header modification ability.
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- version/xen xen-unstable/4.2.2