PT-2017-3263 · Memcached+3 · Memcached+3

Daniel Shapira · Published 2017-06-13 · Updated 2024-06-15 · CVE-2017-9951

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions memcached versions prior to 1.4.39

Description The issue is related to the try read command function in memcached.c, which allows remote attackers to cause a denial of service (segmentation fault) via a request to add or set a key. This is due to a comparison between signed and unsigned int, triggering a heap-based buffer over-read. The vulnerability exists because of an incomplete fix for a previous issue.

Recommendations For versions prior to 1.4.39, update to version 1.4.39 or later to resolve the issue. As a temporary workaround, consider restricting access to the try read command function until a patch is available.

Exploit

Fix

Buffer Overflow

Weakness Enumeration

CWE-119

Related Identifiers

ALT-PU-2017-1914

BDU:2018-00019

CVE-2017-9951

DLA-1033-1

DSA-4218-1

MGASA-2017-0441

OPENSUSE-SU-2018_0855-1

OPENSUSE-SU-2024:11045-1

SUSE-SU-2018:0778-1

SUSE-SU-2018:0807-1

SUSE-SU-2018:0839-1

SUSE-SU-2018:1601-1

SUSE-SU-2018_0839-1

USN-3588-1

Affected Products

Alt Linux

Suse

Ubuntu

Memcached

References · 54

• 🔥 https://twistlock.com/2017/07/13/cve-2017-9951-heap-overflow-memcached-server-1-4-38-twistlock-vulnerability-report · Exploit
• https://advisories.mageia.org/MGASA-2017-0441.html · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2018:0807-1 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/[e-mail]/thread/EGQ5CRXRSHTKFUB5MCASDOTTZT7YR6IR · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2017-9951 · Vendor Advisory
• https://ubuntu.com/security/CVE-2018-1000115 · Vendor Advisory
• https://bdu.fstec.ru/vul/2018-00019 · Security Note
• https://usn.ubuntu.com/3588-1 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2017-9951 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2017-9951 · Security Note
• https://debian.org/security/2018/dsa-4218 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2018:1601-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2018:0778-1 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2024:11045-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-9951 · Vendor Advisory