CVE-2017-9951

7.5 HIGH
Published: July 17, 2017 Modified: May 13, 2026
View on NVD

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.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
http://www.securityfocus.com/bid/99874
Source: cve@mitre.org
https://github.com/memcached/memcached/wiki/ReleaseNotes1439
Source: cve@mitre.org
Third Party Advisory
https://groups.google.com/forum/message/raw?msg=memcached/ubGWrkmrr4E/nrm1SeVJAQAJ
Source: cve@mitre.org
Mailing List Third Party Advisory
https://usn.ubuntu.com/3588-1/
Source: cve@mitre.org
https://www.debian.org/security/2018/dsa-4218
Source: cve@mitre.org
https://www.twistlock.com/2017/07/13/cve-2017-9951-heap-overflow-memcached-server-1-4-38-twistlock-vulnerability-report/
Source: cve@mitre.org
Exploit Technical Description Third Party Advisory
http://www.securityfocus.com/bid/99874
Source: af854a3a-2127-422b-91ae-364da2661108
https://github.com/memcached/memcached/wiki/ReleaseNotes1439
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://groups.google.com/forum/message/raw?msg=memcached/ubGWrkmrr4E/nrm1SeVJAQAJ
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing List Third Party Advisory
https://usn.ubuntu.com/3588-1/
Source: af854a3a-2127-422b-91ae-364da2661108
https://www.debian.org/security/2018/dsa-4218
Source: af854a3a-2127-422b-91ae-364da2661108
https://www.twistlock.com/2017/07/13/cve-2017-9951-heap-overflow-memcached-server-1-4-38-twistlock-vulnerability-report/
Source: af854a3a-2127-422b-91ae-364da2661108
Exploit Technical Description Third Party Advisory

12 reference(s) from NVD

Quick Stats

CVSS v3 Score
7.5 / 10.0
EPSS (Exploit Probability)
4.2%
90th percentile
Exploitation Status
Not in CISA KEV

Affected Vendors

memcached