CVE-2021-29949 Details
Description
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. This vulnerability affects Thunderbird < 78.9.1.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
No SSVC data is available for this CVE.
References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://bugzilla.mozilla.org/show_bug.cgi?id=1682101 | CVE | Permissions RequiredVendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2021-13/ | CVE | Release NotesVendor Advisory |
| https://bugzilla.mozilla.org/show_bug.cgi?id=1682101 | [email protected] | Permissions RequiredVendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2021-13/ | [email protected] | Release NotesVendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-427 | Uncontrolled Search Path Element | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| mozilla thunderbird | < 78.9.1 |
CPE
Remediation
| |
Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Nov 21, 2024 | CVE Modified | CVE |
| May 14, 2024 | CVE Modified | [email protected] |
| Jun 30, 2021 | Initial Analysis | [email protected] |