Vulnerability Description
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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Memcached | Memcached | <= 1.4.38 |
References
- http://www.securityfocus.com/bid/99874
- https://github.com/memcached/memcached/wiki/ReleaseNotes1439Third Party Advisory
- https://groups.google.com/forum/message/raw?msg=memcached/ubGWrkmrr4E/nrm1SeVJAQMailing ListThird Party Advisory
- https://usn.ubuntu.com/3588-1/
- https://www.debian.org/security/2018/dsa-4218
- https://www.twistlock.com/2017/07/13/cve-2017-9951-heap-overflow-memcached-serveExploitTechnical DescriptionThird Party Advisory
- http://www.securityfocus.com/bid/99874
- https://github.com/memcached/memcached/wiki/ReleaseNotes1439Third Party Advisory
- https://groups.google.com/forum/message/raw?msg=memcached/ubGWrkmrr4E/nrm1SeVJAQMailing ListThird Party Advisory
- https://usn.ubuntu.com/3588-1/
- https://www.debian.org/security/2018/dsa-4218
- https://www.twistlock.com/2017/07/13/cve-2017-9951-heap-overflow-memcached-serveExploitTechnical DescriptionThird Party Advisory
FAQ
What is CVE-2017-9951?
CVE-2017-9951 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 comparis...
How severe is CVE-2017-9951?
CVE-2017-9951 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2017-9951?
Check the references section above for vendor advisories and patch information. Affected products include: Memcached Memcached.