Bug 1189631 (CVE-2021-29981)

Summary: VUL-1: CVE-2021-29981: MozillaThunderbird,MozillaFirefox: potentially exploitable crash
Product: [Novell Products] SUSE Security Incidents Reporter: Robert Frohl <rfrohl>
Component: IncidentsAssignee: Martin Sirringhaus <martin.sirringhaus>
Status: RESOLVED FIXED QA Contact: Security Team bot <security-team>
Severity: Minor    
Priority: P5 - None CC: smash_bz
Version: unspecified   
Target Milestone: ---   
Hardware: Other   
OS: Other   
URL: https://smash.suse.de/issue/307491/
Whiteboard: CVSSv3.1:SUSE:CVE-2021-29981:8.8:(AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
Found By: Security Response Team Services Priority:
Business Priority: Blocker: ---
Marketing QA Status: --- IT Deployment: ---

Description Robert Frohl 2021-08-20 09:06:01 UTC
CVE-2021-29981

An issue present in lowering/register allocation could have led to obscure but
deterministic register confusion failures in JITted code that would lead to a
potentially exploitable crash. This vulnerability affects Firefox < 91 and
Thunderbird < 91.

References:
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-29981
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-29981
https://bugzilla.mozilla.org/show_bug.cgi?id=1707774
https://www.mozilla.org/security/advisories/mfsa2021-33/
https://www.mozilla.org/security/advisories/mfsa2021-36/
Comment 1 Robert Frohl 2021-08-20 09:06:20 UTC
does not affect SLE and fixed in Factory, closing
Comment 2 Robert Frohl 2021-08-20 09:07:12 UTC
really closing now..