CVE-2023-46847

Published: 3 November 2023

Squid is vulnerable to a Denial of Service, where a remote attacker can perform buffer overflow attack by writing up to 2 MB of arbitrary data to heap memory when Squid is configured to accept HTTP Digest Authentication.

Priority

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package	Release	Status
squid Launchpad, Ubuntu, Debian	trusty	Ignored (end of standard support)
	xenial	Ignored (end of standard support)
	bionic	Ignored (end of standard support)
	upstream	Released (6.4)
	focal	Released (4.10-1ubuntu1.8)
	jammy	Released (5.7-0ubuntu0.22.04.2)
	lunar	Released (5.7-1ubuntu3.1)
	mantic	Released (6.1-2ubuntu1.1)
	Patches: upstream: https://github.com/squid-cache/squid/commit/dc0e10bec3334053c1a5297e50dd7052ea18aef0 (v6) upstream: https://github.com/squid-cache/squid/commit/052cf082b0faaef4eaaa4e94119d7a1437aac4a3 (v5)
squid3 Launchpad, Ubuntu, Debian	trusty	Ignored (end of standard support)
	xenial	Needs triage
	bionic	Needs triage
	focal	Does not exist
	jammy	Does not exist
	lunar	Does not exist
	mantic	Does not exist
	upstream	Needs triage

Severity score breakdown

Parameter	Value
Base score	7.5
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

References

Bugs

https://bugs.launchpad.net/ubuntu/+source/squid/+bug/2041837

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