USN-6368-1: Thunderbird vulnerabilities

Releases

• Ubuntu 23.04
• Ubuntu 22.04 LTS
• Ubuntu 20.04 LTS

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,
obtain sensitive information, bypass security restrictions, cross-site
tracing, or execute arbitrary code. (CVE-2023-4573, CVE-2023-4574,
CVE-2023-4575, CVE-2023-4581, CVE-2023-4584)

It was discovered that Thunderbird did not properly manage memory when
handling WebP images. If a user were tricked into opening a malicious WebP
image file, an attacker could potentially exploit these to cause a denial
of service or execute arbitrary code. (CVE-2023-4863)

Update instructions

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

Ubuntu 23.04

• thunderbird - 1:102.15.1+build1-0ubuntu0.23.04.1

Ubuntu 22.04

• thunderbird - 1:102.15.1+build1-0ubuntu0.22.04.1

Ubuntu 20.04

• thunderbird - 1:102.15.1+build1-0ubuntu0.20.04.1

In general, a standard system update will make all the necessary changes.

References

• CVE-2023-4863
• CVE-2023-4574
• CVE-2023-4584
• CVE-2023-4575
• CVE-2023-4581
• CVE-2023-4573

Related notices

• USN-6367-1
• USN-6369-1
• USN-6369-2
• USN-6320-1