USN-5393-1: Thunderbird vulnerabilities

Releases

• Ubuntu 21.10
• Ubuntu 20.04 LTS
• Ubuntu 18.04 ESM

Packages

• thunderbird - Mozilla Open Source mail and newsgroup client

Details

Multiple security issues were discovered in Thunderbird. If a user were
tricked into opening a specially crafted website in a browsing context, an
attacker could potentially exploit these to cause a denial of service,
conduct spoofing attacks, or execute arbitrary code. (CVE-2022-1097,
CVE-2022-1196, CVE-2022-28281, CVE-2022-28282, CVE-2022-28285,
CVE-2022-28286, CVE-2022-28289)

It was discovered that Thunderbird ignored OpenPGP revocation when
importing a revoked key in some circumstances. An attacker could
potentially exploit this by tricking the user into trusting the
authenticity of a message or tricking them into use a revoked key to
send an encrypted message. (CVE-2022-1197)

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 21.10

• thunderbird - 1:91.8.1+build1-0ubuntu0.21.10.1

Ubuntu 20.04

• thunderbird - 1:91.8.1+build1-0ubuntu0.20.04.1

Ubuntu 18.04

• thunderbird - 1:91.8.1+build1-0ubuntu0.18.04.1

After a standard system update you need to restart Thunderbird to make
all the necessary changes.

References

• CVE-2022-28281
• CVE-2022-28286
• CVE-2022-28289
• CVE-2022-1196
• CVE-2022-1097
• CVE-2022-28285
• CVE-2022-1197
• CVE-2022-28282

Related notices

• USN-5370-1
• USN-5494-1