Bug 1213700 (CVE-2023-37732)

Summary:	VUL-0: CVE-2023-37732: yasm: SEGV in yasm/libyasm/intnum.c's function :yasm_intnum_copy
Product:	[Novell Products] SUSE Security Incidents	Reporter:	Gianluca Gabrielli <gianluca.gabrielli>
Component:	Incidents	Assignee:	Adam Majer <amajer>
Status:	RESOLVED WONTFIX	QA Contact:	Security Team bot <security-team>
Severity:	Normal
Priority:	P3 - Medium	CC:	gianluca.gabrielli, security-team
Version:	unspecified
Target Milestone:	---
Hardware:	Other
OS:	Other
URL:	https://smash.suse.de/issue/373503/
Whiteboard:	CVSSv3.1:SUSE:CVE-2023-37732:5.5:(AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H)
Found By:	Security Response Team	Services Priority:
Business Priority:		Blocker:	---
Marketing QA Status:	---	IT Deployment:	---

Description Gianluca Gabrielli 2023-07-27 06:51:26 UTC

Yasm v1.3.0.78 was found prone to NULL Pointer Dereference in /libyasm/intnum.c
and /elf/elf.c, which allows the attacker to cause a denial of service via a
crafted file.

References:
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2023-37732
https://bugzilla.redhat.com/show_bug.cgi?id=2226934
https://www.cve.org/CVERecord?id=CVE-2023-37732
https://gist.github.com/ChanStormstout/02eea9cf5c002b42b2ff3de5ca939520
https://github.com/yasm/yasm/issues/233

Comment 1 Gianluca Gabrielli 2023-07-27 06:52:25 UTC

Please submit the upstream patch [0] to the following vulnerable packages:

 - SUSE:ALP:Source:Standard:1.0/yasm
 - SUSE:SLE-12:Update/yasm
 - openSUSE:Factory/yasm
 - SUSE:SLE-15:Update/yasm

[0] https://github.com/yasm/yasm/commit/2cd3bb50e256f5ed5f611ac611d25fe673f2cec3.patch

Comment 5 Gianluca Gabrielli 2023-08-30 10:15:45 UTC

Great, thanks for the explanation. Closing as WONTFIX.