PT-2023-2774 · Memcached+4 · Memcached+4

Tysonandre · Published 2021-09-04 · Updated 2024-11-08 · CVE-2021-37519

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions memcached version 1.6.9

Description The issue is related to a Buffer Overflow in the authfile.c file of memcached, which can be exploited by attackers to cause a denial of service via a crafted authentication file. This can allow an attacker to disrupt the service using a specially created authentication file.

Recommendations For memcached version 1.6.9, consider updating to a newer version that addresses this issue, as the current version is affected by the Buffer Overflow vulnerability in the authfile.c file. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

DoS

Memory Corruption

Heap Based Buffer Overflow

Weakness Enumeration

CWE-787

CWE-122

Related Identifiers

ALT-PU-2021-2721

ALT-PU-2023-1218

ALT-PU-2023-1312

BDU:2023-02665

BIT-MEMCACHED-2021-37519

CVE-2021-37519

Affected Products

Alt Linux

Astra Linux

Debian

Red Os

Memcached

References · 18

• 🔥 https://github.com/memcached/memcached/issues/805 · Exploit
• https://github.com/memcached/memcached/pull/806/commits/264722ae4e248b453be00e97197dadc685b60fd0 · Patch
• https://osv.dev/vulnerability/UBUNTU-CVE-2021-37519 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2021-37519 · Vendor Advisory
• https://bdu.fstec.ru/vul/2023-02665 · Security Note
• https://ubuntu.com/security/CVE-2021-37519 · Vendor Advisory
• https://wiki.astralinux.ru/astra-linux-se17-bulletin-2025-0923SE17 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-37519 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-37519 · Security Note
• https://cve.org/CVERecord?id=CVE-2021-37519 · Security Note
• https://wiki.astralinux.ru/astra-linux-se47-bulletin-2025-1020SE47 · Vendor Advisory
• https://osv.dev/vulnerability/BIT-memcached-2021-37519 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2021-37519 · Vendor Advisory
• https://github.com/memcached/memcached/commit/ddee3e27a031be22f5f28c160be18fd3cb9bc63d · Note
• https://access.redhat.com/security/cve/cve-2021-37519 · Note