SB2013051407 - Permissions, Privileges, and Access Controls in Xen
Published: May 14, 2013 Updated: July 28, 2020
Security Bulletin ID
SB2013051407
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2013-1922)
The vulnerability allows a local non-authenticated attacker to read and manipulate data.
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.
Remediation
Install update from vendor's website.
References
- 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