Race condition in Xen - CVE-2014-7154
Published: October 2, 2014 / Updated: July 28, 2020
Vulnerability identifier: #VU32479
CSH Severity: Medium
CVSS v4: 7.1 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2014-7154
CWE-ID: CWE-362
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.
Race condition in HVMOP_track_dirty_vram in Xen 4.0.0 through 4.4.x does not ensure possession of the guarding lock for dirty video RAM tracking, which allows certain local guest domains to cause a denial of service via unspecified vectors.
Affected software
Xen
Gentoo Linux
Fedora
xen (Alpine package)
xen
Gentoo Linux
Fedora
xen (Alpine package)
xen
How to mitigate CVE-2014-7154
Install update from vendor's website.
xen (Alpine package) - update to 4.3.3-r1
xen - update to 4.4.1-4.fc21
xen - update to 4.4.1-4.fc21
External References
- http://lists.fedoraproject.org/pipermail/package-announce/2014-October/140418.html
- http://lists.fedoraproject.org/pipermail/package-announce/2014-October/140483.html
- http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00002.html
- http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00003.html
- http://secunia.com/advisories/61501
- http://secunia.com/advisories/61890
- http://security.gentoo.org/glsa/glsa-201412-42.xml
- http://www.debian.org/security/2014/dsa-3041
- http://www.securitytracker.com/id/1030887
- http://xenbits.xen.org/xsa/advisory-104.html