Bug 2119150 (CVE-2022-2469) - CVE-2022-2469 libgsasl: Out of bounds read causes DoS
Summary: CVE-2022-2469 libgsasl: Out of bounds read causes DoS
Keywords:
Status: CLOSED UPSTREAM
Alias: CVE-2022-2469
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2119151 2119152 2119153 2119154
Blocks: 2108370
TreeView+ depends on / blocked
 
Reported: 2022-08-17 17:36 UTC by Todd Cullum
Modified: 2022-09-02 01:32 UTC (History)
4 users (show)

Fixed In Version: libgsasl 2.0.1
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Clone Of:
Environment:
Last Closed: 2022-09-02 01:32:54 UTC
Embargoed:

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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.
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