Reachable Assertion Affecting openafs package, versions <1.6.22-1
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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- published6 Dec 2017
- disclosed6 Dec 2017
Introduced: 6 Dec 2017
CVE-2017-17432 (opens in a new tab)How to fix?
Upgrade Debian:unstable openafs to version 1.6.22-1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream openafs package and not the openafs package as distributed by Debian.
See How to fix? for Debian:unstable relevant fixed versions and status.
OpenAFS 1.x before 1.6.22 does not properly validate Rx ack packets, which allows remote attackers to cause a denial of service (system crash or application crash) via crafted fields, as demonstrated by an integer underflow and assertion failure for a small MTU value.
References
- https://security-tracker.debian.org/tracker/CVE-2017-17432
- https://www.openafs.org/pages/security/OPENAFS-SA-2017-001.txt
- https://bugs.debian.org/883602
- https://www.debian.org/security/2017/dsa-4067
- https://lists.debian.org/debian-lts-announce/2017/12/msg00016.html
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2017-17432