Bug 1201910 (CVE-2021-33463)

Summary:	VUL-1: CVE-2021-33463: yasm: NULL pointer dereference in yasm_expr__copy_except() in libyasm/expr.c
Product:	[Novell Products] SUSE Security Incidents	Reporter:	Hu <cathy.hu>
Component:	Incidents	Assignee:	Michael Vetter <mvetter>
Status:	NEW ---	QA Contact:	Security Team bot <security-team>
Severity:	Minor
Priority:	P4 - Low	CC:	security-team
Version:	unspecified
Target Milestone:	---
Hardware:	Other
OS:	Other
URL:	https://smash.suse.de/issue/338225/
Whiteboard:	CVSSv3.1:SUSE:CVE-2021-33463:3.3:(AV:L/AC:L/PR:N/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 Hu 2022-07-27 08:21:07 UTC

CVE-2021-33463

An issue was discovered in yasm version 1.3.0. There is a NULL pointer
dereference in yasm_expr__copy_except() in libyasm/expr.c.

References:
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-33463
https://github.com/yasm/yasm/issues/174
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-33463
https://gist.github.com/Clingto/bb632c0c463f4b2c97e4f65f751c5e6d

Comment 1 Hu 2022-07-27 08:21:15 UTC

I could not find a fix unfortunately.

Affected:
- SUSE:SLE-15:Update/yasm  1.3.0
- openSUSE:Factory/yasm    1.3.0