thunderbird-102.10.0

[Douglas R. Reno]

New point version

It appears to have been released overnight, and contains the same CVE fixes as Firefox, as well as a few new ones.

I'm going to mark it as High priority both because of the upstream rating, but also because a bug currently exists that allows revoked security certificates through when verifying S/MIME emails:

OCSP revocation status of recipient certificates was not checked when 
sending S/Mime encrypted email, and revoked certificates would be 
accepted. Thunderbird versions from 68 to 102.9.1 were affected by this 
bug.

[Douglas R. Reno]

Release Notes

Changes

New messages will automatically select S/MIME if configured and OpenPGP is not

Fixes

Calendar events with timezone America/Mexico_City incorrectly applied Daylight Savings Time

Security fixes

Security Information

CVE-2023-29533: Fullscreen notification obscured. Impact: High. A website could have obscured the fullscreen notification by using a combination of window.open, fullscreen requests, window.name assignments, and setInterval calls. This could have led to user confusion and possible spoofing attacks.

MFSA-TMP-2023-0001: Double-free in libwebp. Impact: High. A double-free in libwebp could have led to memory corruption and a potentially exploitable crash.

CVE-2023-29535: Potential Memory Corruption following Garbage Collector compaction. Impact: High. Following a Garbage Collector compaction, weak maps may have been accessed before they were correctly traced. This resulted in memory corruption and a potentially exploitable crash.

CVE-2023-29536: Invalid free from JavaScript code. Impact: High. An attacker could cause the memory manager to incorrectly free a pointer that addresses attacker-controlled memory, resulting in an assertion, memory corruption, or a potentially exploitable crash.

CVE-2023-0547: Revocation status of S/Mime recipient certificates was not checked. Impact: High. OCSP revocation status of recipient certificates was not checked when sending S/Mime encrypted email, and revoked certificates would be accepted. Thunderbird versions from 68 to 102.9.1 were affected by this bug.

CVE-2023-29479: Hang when processing certain OpenPGP messages. Impact: Moderate. Certain malformed OpenPGP messages could trigger incorrect parsing of PKESK/SKESK packets due to a bug in the Ribose RNP library used by Thunderbird up to version 102.9.1, which would cause the Thunderbird user interface to hang. The issue was discovered using Google's oss-fuzz.

CVE-2023-29539: Content-Disposition filename truncation leads to Reflected File Download. Impact: Moderate. When handling the filename directive in the Content-Disposition header, the filename would be truncated if the filename contained a NULL character. This could have led to reflected file download attacks potentially tricking users to install malware.

CVE-2023-29541: Files with malicious extensions could have been downloaded unsafely on Linux. Impact: Moderate. Thunderbird did not properly handle downloads of files ending in .desktop, which can be interpreted to run attacker-controlled commands.

CVE-2023-1945: Memory Corruption in Safe Browsing Code. Impact: Moderate. Unexpected data returned from the Safe Browsing API could have led to memory corruption and a potentially exploitable crash.

CVE-2023-29548: Incorrect optimization result on ARM64. Impact: Low. A wrong lowering instruction in the ARM64 Ion compiler resulted in a wrong optimization result.

CVE-2023-29550: Memory safety bugs fixed in Thunderbird 102.10. Impact: High. Mozilla developers Andrew Osmond, Sebastian Hengst, Andrew McCreight, and the Mozilla Fuzzing Team reported memory safety bugs present in Thunderbird 102.9. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code.

[Douglas R. Reno]

Fixed at 3511835d412388e95cdb6364a996790acc74a2a5

SA-11.3-018 issued.

[Bruce Dubbs]

Milestone renamed