Race Condition Affecting xen package, versions <4.8.2+xsa245-0+deb9u1
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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- published12 Sept 2017
- disclosed12 Sept 2017
Introduced: 12 Sep 2017
CVE-2017-14317 (opens in a new tab)How to fix?
Upgrade Debian:unstable xen to version 4.8.2+xsa245-0+deb9u1 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:unstable relevant fixed versions and status.
A domain cleanup issue was discovered in the C xenstore daemon (aka cxenstored) in Xen through 4.9.x. When shutting down a VM with a stubdomain, a race in cxenstored may cause a double-free. The xenstored daemon may crash, resulting in a DoS of any parts of the system relying on it (including domain creation / destruction, ballooning, device changes, etc.).
References
- https://security-tracker.debian.org/tracker/CVE-2017-14317
- http://xenbits.xen.org/xsa/advisory-233.html
- https://www.debian.org/security/2017/dsa-4050
- https://lists.debian.org/debian-lts-announce/2018/10/msg00009.html
- http://www.securityfocus.com/bid/100826
- http://www.securitytracker.com/id/1039350
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2017-14317