CVE-2021-23993 - log back

CVE-2021-23993 edited at 08 Apr 2021 20:02:23
Severity
- Low
+ Medium
CVE-2021-23993 edited at 08 Apr 2021 20:02:13
Severity
- Unknown
+ Low
Remote
- Unknown
+ Remote
Type
- Unknown
+ Denial of service
Description
+ A security issue was found in Thunderbird before version 78.9.1. An attacker may perform a denial of service (DoS) attack to prevent a user from sending encrypted email to a correspondent. If an attacker creates a crafted OpenPGP key with a subkey that has an invalid self signature, and the Thunderbird user imports the crafted key, then Thunderbird may try to use the invalid subkey, but the RNP library rejects it from being used, causing encryption to fail.
References
+ https://www.mozilla.org/en-US/security/advisories/mfsa2021-13/#CVE-2021-23993
+ https://bugzilla.mozilla.org/show_bug.cgi?id=1666360
Notes
CVE-2021-23993 created at 08 Apr 2021 19:59:39