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CVE-2017-9951

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Date: July 17, 2017

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.

Language: C

Severity Score

Related Resources (11)

https://access.redhat.com/security/cve/CVE-2017-9951
https://www.debian.org/security/2018/dsa-4218
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/
https://security-tracker.debian.org/tracker/CVE-2017-9951
https://nvd.nist.gov/vuln/detail/CVE-2017-9951
http://www.securityfocus.com/bid/99874
https://people.canonical.com/~ubuntu-security/cve/CVE-2017-9951
https://usn.ubuntu.com/3588-1/
https://github.com/memcached/memcached/wiki/ReleaseNotes1439
https://www.mend.io/vulnerability-database/CVE-2017-9951

Severity Score

Weakness Type (CWE)

Insufficient Information

NVD-CWE-noinfo

Top Fix

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): PARTIAL
Additional information:

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