Monday, April 12, 2021

MFSA2021-13 Thunderbird: Security Vulnerabilities fixed in Thunderbird 78.9.1 (CVE-2021-23991)

Description
If a Thunderbird user has previously imported Alice's OpenPGP key, and Alice has extended the validity period of her key, but Alice's updated key has not yet been imported, an attacker may send an email containing a crafted version of Alice's key with an invalid subkey, Thunderbird might subsequently attempt to use the invalid subkey, and will fail to send encrypted email to Alice.
Solution(s)
  • mozilla-thunderbird-upgrade-78_9_1


  • References
  • https://attackerkb.com/topics/cve-2021-23991
  • CVE - 2021-23991
  • http://www.mozilla.org/security/announce/2021/mfsa2021-13.html




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    Thanks for everything Templateism - You should have written the code a little more complicated