Ubuntu 23.10 USN-7516-2 High Alert: Firefox Vulnerability Exploit

ubuntu

November 27, 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-2023-6206, CVE-2023-6212)

It was discovered that Thudnerbird did not properly manage memory when

images were created on the canvas element. An attacker could potentially

exploit this issue to obtain sensitive information. (CVE-2023-6204)

It discovered that Thunderbird incorrectly handled certain memory when

using a MessagePort. An attacker could potentially exploit this issue to

cause a denial of service. (CVE-2023-6205)

It discovered that Thunderbird incorrectly did not properly manage ownership

in ReadableByte...

Read the Full Advisory

Topics Covered

security advisory denial of service security issue software update Ubuntu Thunderbird

Update Instructions

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

Ubuntu 23.10:
  thunderbird                     1:115.5.0+build1-0ubuntu0.23.10.1

Ubuntu 23.04:
  thunderbird                     1:115.5.0+build1-0ubuntu0.23.04.1

Ubuntu 22.04 LTS:
  thunderbird                     1:115.5.0+build1-0ubuntu0.22.04.1

Ubuntu 20.04 LTS:
  thunderbird                     1:115.5.0+build1-0ubuntu0.20.04.1

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