Ubuntu 22.10 USN-6015-1: Critical Thunderbird Denial of Service Fix

ubuntu

April 13, 2023

Several security issues were fixed in Thunderbird.

Summary

Several security issues were fixed in Thunderbird.

Software Description:

- 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-2023-1945, CVE-2023-29548,

CVE-2023-29550)

Paul Menzel discovered that Thunderbird did not properly validate OCSP

revocation status of recipient certificates when sending S/Mime encrypted

email. An attacker could potentially exploits this issue to perform

spoofing attack. (CVE-2023-0547)

Ribose RNP Team discovered that Thunderbird did not properly manage memory

when parsing certain OpenPGP messages. An attacker could potentially

exploits this issue to cause a denial of service. (CVE-2023-29479)

Irvan Kurniawan d...

Read the Full Advisory

Topics Covered

security advisory denial of service software update security fix Thunderbird spoofing attack Ubuntu 22.10

Update Instructions

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

Ubuntu 22.10:
  thunderbird                     1:102.10.0+build2-0ubuntu0.22.10.1

Ubuntu 22.04 LTS:
  thunderbird                     1:102.10.0+build2-0ubuntu0.22.04.1

Ubuntu 20.04 LTS:
  thunderbird                     1:102.10.0+build2-0ubuntu0.20.04.1

Ubuntu 18.04 LTS:
  thunderbird                     1:102.10.0+build2-0ubuntu0.18.04.1

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