CVE-2017-9951 Affecting memcached package, versions <1.5.0-1
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-DEBIAN11-MEMCACHED-518551
- published17 Jul 2017
- disclosed17 Jul 2017
Introduced: 17 Jul 2017
CVE-2017-9951 (opens in a new tab)How to fix?
Upgrade Debian:11 memcached to version 1.5.0-1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream memcached package and not the memcached package as distributed by Debian.
See How to fix? for Debian:11 relevant fixed versions and status.
The try_read_command function in memcached.c in memcached before 1.4.39 allows remote attackers to cause a denial of service (segmentation fault) via a request to add/set a key, which makes a comparison between signed and unsigned int and triggers a heap-based buffer over-read. NOTE: this vulnerability exists because of an incomplete fix for CVE-2016-8705.
References
- https://security-tracker.debian.org/tracker/CVE-2017-9951
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-9951
- https://www.debian.org/security/2018/dsa-4218
- https://github.com/memcached/memcached/wiki/ReleaseNotes1439
- https://groups.google.com/forum/message/raw?msg=memcached/ubGWrkmrr4E/nrm1SeVJAQAJ
- https://www.twistlock.com/2017/07/13/cve-2017-9951-heap-overflow-memcached-server-1-4-38-twistlock-vulnerability-report/
- http://www.securityfocus.com/bid/99874
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2017-9951
- https://usn.ubuntu.com/3588-1/