Bug 2119150 (CVE-2022-2469)

Summary:	CVE-2022-2469 libgsasl: Out of bounds read causes DoS
Product:	[Other] Security Response	Reporter:	Todd Cullum <tcullum>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED UPSTREAM	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	lemenkov, mh, pabelanger, wart
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	libgsasl 2.0.1	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2022-09-02 01:32:54 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	2119152, 2119151, 2119153, 2119154
Bug Blocks:	2108370

Description Todd Cullum 2022-08-17 17:36:15 UTC

In versions of gsasl < 2.0.1, a malicious client can after it has authenticated with Kerberos send a
specially crafted message that causes Libgsasl to read out of bounds and cause a crash in the GSSAPI server.

References:
https://lists.gnu.org/archive/html/info-gnu/2022-07/msg00003.html
https://www.debian.org/security/2022/dsa-5189

Comment 1 Todd Cullum 2022-08-17 17:40:12 UTC

Created libgsasl tracking bugs for this issue:

Affects: epel-7 [bug 2119151]
Affects: epel-8 [bug 2119152]
Affects: fedora-35 [bug 2119153]
Affects: fedora-36 [bug 2119154]

Comment 2 Todd Cullum 2022-08-17 17:47:42 UTC

Upstream patch: https://gitlab.com/gsasl/gsasl/-/commit/796e4197f696261c1f872d7576371232330bcc30

Comment 3 Product Security DevOps Team 2022-09-02 01:32:53 UTC

This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.