Input validation error in Xen - CVE-2016-2271
Published: February 19, 2016 / Updated: August 9, 2020
Vulnerability identifier: #VU40478
CSH Severity: Medium
CVSS v4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2016-2271
CWE-ID: CWE-20
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows local HVM guest users to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can cause a denial of service (guest crash) via vectors related to a non-canonical RIP.
Affected software
Xen
Fedora
xen
Fedora
xen
How to mitigate CVE-2016-2271
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.
xen - addressed in versions 4.5.2-8.fc22, 4.5.2-8.fc23
External References
- http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177990.html
- http://lists.fedoraproject.org/pipermail/package-announce/2016-March/178518.html
- http://support.citrix.com/article/CTX209443
- http://www.debian.org/security/2016/dsa-3519
- http://www.securitytracker.com/id/1035043
- http://xenbits.xen.org/xsa/advisory-170.html
- https://security.gentoo.org/glsa/201604-03