CVE-2023-46852

Publication date 27 October 2023

Last updated 26 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

In Memcached before 1.6.22, a buffer overflow exists when processing multiget requests in proxy mode, if there are many spaces after the "get" substring.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
memcached	24.04 LTS noble	Not affected
	23.10 mantic	Fixed 1.6.21-1ubuntu0.23.10.1
	23.04 lunar	Fixed 1.6.18-1ubuntu0.1
	22.04 LTS jammy	Fixed 1.6.14-1ubuntu0.1
	20.04 LTS focal	Not affected
	18.04 LTS bionic	Not affected
	16.04 LTS xenial	Not affected
	14.04 LTS trusty	Ignored end of standard support

Notes

mdeslaur

proxy was introduced in 1.6.13

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
memcached	Upstream: 76a6c36

Severity score breakdown

Parameter	Value
Base score	7.5 · High
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	None
Integrity impact	None
Availability impact	High
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H