Ubuntu 23.10 6468-1 Critical: Thunderbird Denial of Service Issues

ubuntu

November 2, 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-2023-5724, CVE-2023-5728,

CVE-2023-5730, CVE-2023-5732)

Kelsey Gilbert discovered that Thunderbird did not properly manage certain

browser prompts and dialogs due to an insufficient activation-delay. An

attacker could potentially exploit this issue to perform clickjacking.

(CVE-2023-5721)

Shaheen Fazim discovered that Thunderbird did not properly validate the URLs

open by installed WebExtension. An attacker could potentially exploit this

issue to obtain sensitive information. (CVE-2023-5725)

Topics Covered

security advisory denial of service security issue critical ubuntu thunderbird clickjacking

Update Instructions

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

Ubuntu 23.10:
  thunderbird                     1:115.4.1+build1-0ubuntu0.23.10.1

Ubuntu 23.04:
  thunderbird                     1:115.4.1+build1-0ubuntu0.23.04.1

Ubuntu 22.04 LTS:
  thunderbird                     1:115.4.1+build1-0ubuntu0.22.04.1

Ubuntu 20.04 LTS:
  thunderbird                     1:115.4.1+build1-0ubuntu0.20.04.1

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