CVE-2026-48829

Publication date 24 May 2026

Last updated 6 June 2026

Ubuntu priority

Cvss 3 Severity Score

Description

In GNU SASL before 2.2.3, DIGEST-MD5 has a NULL pointer dereference affecting both clients and servers, via a known token with no accompanying = character. This occurs in lib/digest-md5/getsubopt.c.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
gsasl	26.04 LTS resolute	Fixed 2.2.2-4ubuntu1.1
	25.10 questing	Fixed 2.2.2-2ubuntu1.1
	24.04 LTS noble	Fixed 2.2.1-1willsync1ubuntu0.1
	22.04 LTS jammy	Needs evaluation
	20.04 LTS focal	Needs evaluation
	18.04 LTS bionic	Needs evaluation
	14.04 LTS trusty	Needs evaluation

Patch details

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

Package	Patch details
gsasl	Upstream: da9b5ae

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

References

Related Ubuntu Security Notices (USN)

USN-8356-1
GNU SASL vulnerability
1 June 2026