Bug 2157831 (CVE-2022-48195)

Summary:	CVE-2022-48195 mellium.im/sasl: insufficient randomness during authentication
Product:	[Other] Security Response	Reporter:	Avinash Hanwate <ahanwate>
Component:	vulnerability	Assignee:	Nobody <nobody>
Status:	NEW ---	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	CC:	bdettelb, dfreiber, gparvin, jburrell, njean, owatkins, pahickey, rogbas, stcannon, teagle, vkumar
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	mellium.im/sasl 0.3.1	Doc Type:	If docs needed, set a value
Doc Text:	A flaw was found in mellium.im/sasl. Affected versions of this package are vulnerable to Missing Critical Steps in Authentication if the remote side of a SCRAM-based connection advertises support for channel binding since an empty nonce is used.	Story Points:	---
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	2157256

Description Avinash Hanwate 2023-01-03 06:58:00 UTC

An issue was discovered in Mellium mellium.im/sasl before 0.3.1. When performing SCRAM-based SASL authentication, if the remote end advertises support for channel binding, no random nonce is generated (instead, the nonce is empty). This causes authentication to fail in the best case, but (if paired with a remote end that does not validate the length of the nonce) could lead to insufficient randomness being used during authentication.

https://mellium.im/cve/cve-2022-48195/