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	bionic	Ignored (end of standard support)
	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)
	trusty	Ignored (end of standard support)
	upstream	Released (6.4)
	xenial	Ignored (end of standard support)
	Patches: upstream: https://github.com/squid-cache/squid/commit/dc0e10bec3334053c1a5297e50dd7052ea18aef0 upstream: https://github.com/squid-cache/squid/commit/052cf082b0faaef4eaaa4e94119d7a1437aac4a3
squid3 Launchpad, Ubuntu, Debian	bionic	Released (3.5.27-1ubuntu1.14+esm1) Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
	focal	Does not exist
	jammy	Does not exist
	lunar	Does not exist
	mantic	Does not exist
	trusty	Ignored (end of standard support)
	upstream	Needs triage
	xenial	Released (3.5.12-1ubuntu7.16+esm2) Available with Ubuntu Pro or Ubuntu Pro (Infra-only)

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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