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High severity · published Jul 17, 2017
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,…
7.5
CVSS
4.2%
EPSS
No
On KEV
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 vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)4.2% · higher than 91% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
ME
Memcached · Memcached
through 1.4.38 · source: NVD
Affected product
ME
Memcached
Memcached
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-9951
CVE.org
https://www.cve.org/CVERecord?id=CVE-2017-9951
www.securityfocus.com
http://www.securityfocus.com/bid/99874
Third Party Advisory
https://github.com/memcached/memcached/wiki/ReleaseNotes1439
Mailing List
https://groups.google.com/forum/message/raw?msg=memcached/ubGWrkmrr4E/nrm1SeVJAQAJ
usn.ubuntu.com
https://usn.ubuntu.com/3588-1/
www.debian.org
https://www.debian.org/security/2018/dsa-4218
Exploit
https://www.twistlock.com/2017/07/13/cve-2017-9951-heap-overflow-memcached-server-1-4-38-twistlock-vulnerability-report/
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