Bug 1215189 (CVE-2023-4874)

Summary:	VUL-0: CVE-2023-4874: mutt: null pointer dereference when composing an email
Product:	[Novell Products] SUSE Security Incidents	Reporter:	Gianluca Gabrielli <gianluca.gabrielli>
Component:	Incidents	Assignee:	Dr. Werner Fink <werner>
Status:	RESOLVED FIXED	QA Contact:	Security Team bot <security-team>
Severity:	Normal
Priority:	P3 - Medium	CC:	security-team
Version:	unspecified
Target Milestone:	---
Hardware:	Other
OS:	Other
URL:	https://smash.suse.de/issue/377842/
Whiteboard:	CVSSv3.1:SUSE:CVE-2023-4874:2.2:(AV:L/AC:H/PR:L/UI:R/S:U/C:N/I:N/A:L)
Found By:	Security Response Team	Services Priority:
Business Priority:		Blocker:	---
Marketing QA Status:	---	IT Deployment:	---

Description Gianluca Gabrielli 2023-09-11 06:26:49 UTC

When composing an email, miscellaneous extra headers are stored in a
userhdrs list.  Mutt first checks to ensure each header contains at
least a colon character, passes the entire userhdr field (name, colon,
and body) to the rfc2047 decoder, and safe_strdup()'s the result on
the userhdrs list.  An empty result would from the decode would result
in a NULL headers being added to list.

References:
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2023-4874
https://bugzilla.redhat.com/show_bug.cgi?id=2238240
https://www.cve.org/CVERecord?id=CVE-2023-4874
https://security-tracker.debian.org/tracker/DSA-5494-1
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1051563
https://gitlab.com/muttmua/mutt/-/commit/452ee330e094bfc7c9a68555e5152b1826534555.patch
https://gitlab.com/muttmua/mutt/-/commit/a4752eb0ae0a521eec02e59e51ae5daedf74fda0.patch
https://www.debian.org/security/2023/dsa-5494

Comment 1 Gianluca Gabrielli 2023-09-11 06:28:00 UTC

Affected packages:

 - SUSE:SLE-12:Update/mutt
 - SUSE:SLE-15:Update/mutt
 - openSUSE:Factory/mutt

Fixing and hardening commits:

 - https://gitlab.com/muttmua/mutt/-/commit/a4752eb0ae0a521eec02e59e51ae5daedf74fda0.patch
 - https://gitlab.com/muttmua/mutt/-/commit/4cc3128abdf52c615911589394a03271fddeefc6.patch

Comment 2 OBSbugzilla Bot 2023-09-12 08:45:02 UTC

This is an autogenerated message for OBS integration:
This bug (1215189) was mentioned in
https://build.opensuse.org/request/show/1110464 Factory / mutt

Comment 4 Maintenance Automation 2023-09-20 12:30:41 UTC

SUSE-SU-2023:3702-1: An update that solves two vulnerabilities can now be installed.

Category: security (moderate)
Bug References: 1215189, 1215191
CVE References: CVE-2023-4874, CVE-2023-4875
Sources used:
SUSE Linux Enterprise High Performance Computing 12 SP5 (src): mutt-1.10.1-55.30.1
SUSE Linux Enterprise Server 12 SP5 (src): mutt-1.10.1-55.30.1
SUSE Linux Enterprise Server for SAP Applications 12 SP5 (src): mutt-1.10.1-55.30.1

NOTE: This line indicates an update has been released for the listed product(s). At times this might be only a partial fix. If you have questions please reach out to maintenance coordination.

Comment 5 Maintenance Automation 2023-09-27 20:31:07 UTC

SUSE-SU-2023:3826-1: An update that solves two vulnerabilities can now be installed.

Category: security (moderate)
Bug References: 1215189, 1215191
CVE References: CVE-2023-4874, CVE-2023-4875
Sources used:
openSUSE Leap 15.4 (src): mutt-1.10.1-150000.3.26.1
openSUSE Leap 15.5 (src): mutt-1.10.1-150000.3.26.1
Basesystem Module 15-SP4 (src): mutt-1.10.1-150000.3.26.1
Basesystem Module 15-SP5 (src): mutt-1.10.1-150000.3.26.1
SUSE Manager Proxy 4.2 (src): mutt-1.10.1-150000.3.26.1
SUSE Manager Retail Branch Server 4.2 (src): mutt-1.10.1-150000.3.26.1
SUSE Manager Server 4.2 (src): mutt-1.10.1-150000.3.26.1

NOTE: This line indicates an update has been released for the listed product(s). At times this might be only a partial fix. If you have questions please reach out to maintenance coordination.

Comment 6 OBSbugzilla Bot 2023-09-29 10:35:20 UTC

This is an autogenerated message for OBS integration:
This bug (1215189) was mentioned in
https://build.opensuse.org/request/show/1114300 Factory / mutt

Comment 7 Dr. Werner Fink 2023-09-29 10:52:26 UTC

Fixed