Bug 1951872 (CVE-2021-29949)

Summary: CVE-2021-29949 Mozilla: Thunderbird might execute an alternative OTR library
Product: [Other] Security Response Reporter: Doran Moppert <dmoppert>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED WONTFIX QA Contact:
Severity: low Docs Contact:
Priority: low    
Version: unspecifiedCC: erack, jhorak, nobody, stransky, tpopela
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: thunderbird 78.9.1 Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2021-04-21 04:46:33 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Bug Depends On:    
Bug Blocks: 1951866    

Description Doran Moppert 2021-04-21 02:59:20 UTC
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

Comment 1 Doran Moppert 2021-04-21 02:59:24 UTC
Acknowledgments:

Name: the Mozilla project
Upstream: Tuan Vu Pham

Comment 2 Product Security DevOps Team 2021-04-21 04:46:33 UTC
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2021-29949