Permissions, Privileges, and Access Controls in Xen - CVE-2013-1922
Published: May 14, 2013 / Updated: July 28, 2020
Vulnerability identifier: #VU32687
CSH Severity: Low
CVSS v4: 5.1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2013-1922
CWE-ID: CWE-264
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
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.
Affected software
Xen
Gentoo Linux
xen (Alpine package)
app-emulation/xen
app-emulation/xen-pvgrub
app-emulation/xen-tools
Gentoo Linux
xen (Alpine package)
app-emulation/xen
app-emulation/xen-pvgrub
app-emulation/xen-tools
How to mitigate CVE-2013-1922
Install update from vendor's website.
xen (Alpine package) - update to 4.2.1-r7
app-emulation/xen - update to 4.2.2-r1
app-emulation/xen-pvgrub - update to 4.2.2-r1
app-emulation/xen-tools - update to 4.2.2-r3
app-emulation/xen - update to 4.2.2-r1
app-emulation/xen-pvgrub - update to 4.2.2-r1
app-emulation/xen-tools - update to 4.2.2-r3
External 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