Access Restriction Bypass Affecting xen package, versions <4.8.0~rc3-1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-DEBIAN12-XEN-1564409
- published7 Jun 2016
- disclosed7 Jun 2016
Introduced: 7 Jun 2016
CVE-2016-4962 (opens in a new tab)How to fix?
Upgrade Debian:12 xen to version 4.8.0~rc3-1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream xen package and not the xen package as distributed by Debian.
See How to fix? for Debian:12 relevant fixed versions and status.
The libxl device-handling in Xen 4.6.x and earlier allows local OS guest administrators to cause a denial of service (resource consumption or management facility confusion) or gain host OS privileges by manipulating information in guest controlled areas of xenstore.
References
- https://security-tracker.debian.org/tracker/CVE-2016-4962
- http://www.debian.org/security/2016/dsa-3633
- http://xenbits.xen.org/xsa/advisory-175.html
- http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html
- http://www.securityfocus.com/bid/91006
- http://www.securitytracker.com/id/1036023
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2016-4962