Vulnerability Monitor

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CVE-2017-9951

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.

Published

2017-07-17T13:18:30.970

Last Modified

2025-04-20T01:37:25.860

Status

Deferred

Source

[email protected]

Severity

CVSSv3.0: 7.5 (HIGH)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:N/I:N/A:P

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: NONE
Availability Impact: PARTIAL

Exploitability Score

10.0

Impact Score

2.9

Weaknesses

Type: Primary
NVD-CWE-noinfo

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	memcached	memcached	≤ 1.4.38	Yes

References

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