Bug 1185088 (CVE-2021-29949)

Summary: VUL-0: CVE-2021-29949: MozillaThunderbird: might execute an alternative OTR library
Product: [Novell Products] SUSE Security Incidents Reporter: Robert Frohl <rfrohl>
Component: IncidentsAssignee: Martin Sirringhaus <martin.sirringhaus>
Status: RESOLVED INVALID QA Contact: Security Team bot <security-team>
Severity: Normal    
Priority: P5 - None CC: smash_bz
Version: unspecified   
Target Milestone: ---   
Hardware: Other   
OS: Other   
URL: https://smash.suse.de/issue/282415/
Whiteboard:
Found By: Security Response Team Services Priority:
Business Priority: Blocker: ---
Marketing QA Status: --- IT Deployment: ---

Description Robert Frohl 2021-04-21 11:43:23 UTC
rh#1951872

When loading the shared library that provides the OTR protocol implementation, Thunderbird will initially attempt to open it using a filename that isn't distributed by Thunderbird. If a computer has already been infected with a malicious library of the alternative filename, and the malicious library has been copied to a directory that is contained in the search path for executable libraries, then Thunderbird will load the incorrect library.



External Reference:

https://www.mozilla.org/en-US/security/advisories/mfsa2021-13/#CVE-2021-29949

References:
https://bugzilla.redhat.com/show_bug.cgi?id=1951872
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-29949
https://access.redhat.com/errata/RHSA-2021:1201.html
https://access.redhat.com/errata/RHSA-2021:1193.html
https://access.redhat.com/errata/RHSA-2021:1201
https://access.redhat.com/errata/RHSA-2021:1193
Comment 1 Robert Frohl 2021-04-21 11:44:40 UTC
CVE added after the fact to the advisory, already fixed in relevant codestreams. Closing