Bug 1201898 (CVE-2021-33454)

Summary: VUL-1: CVE-2021-33454: yasm: NULL pointer dereference in yasm_expr_get_intnum() in libyasm/expr.c
Product: [Novell Products] SUSE Security Incidents Reporter: Hu <cathy.hu>
Component: IncidentsAssignee: 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/338234/
Whiteboard: CVSSv3.1:SUSE:CVE-2021-33454:3.3:(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 08:04:55 UTC
CVE-2021-33454

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

References:
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-33454
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-33454
https://github.com/yasm/yasm/issues/166
https://gist.github.com/Clingto/bb632c0c463f4b2c97e4f65f751c5e6d
Comment 1 Hu 2022-07-27 08:07:23 UTC
I could not find a fix unfortunately.

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