CVE-2021-23992
medium
CVSS v3
—
CVSS v2
—
VIR risk
5.5
Description
Thunderbird did not check if the user ID associated with an OpenPGP key has a valid self signature. An attacker may create a crafted version of an OpenPGP key, by either replacing the original user ID, or by adding another user ID. If Thunderbird imports and accepts the crafted key, the Thunderbird user may falsely conclude that the false user ID belongs to the correspondent. This vulnerability affects Thunderbird < 78.9.1.
Predictions
Exploit likelihood
20%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2021-23992
Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2021-23992.html
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| arch | fixed | 78.9.1-1 | |
| sles | affected | | |
| debian | bookworm | fixed | 1:78.10.0-1 |
| debian | bullseye | fixed | 1:78.10.0-1 |
| debian | forky | fixed | 1:78.10.0-1 |
| debian | sid | fixed | 1:78.10.0-1 |
| debian | trixie | fixed | 1:78.10.0-1 |
References
Verify integrity in audit chain (admin only). AS-IS.