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Ubuntu Security Notice USN-6515-1
November 27, 2023
thunderbird vulnerabilities
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A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 23.10
- Ubuntu 23.04
- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS
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 ReadableByteStreams. An attacker could potentially exploit this issue
to cause a denial of service. (CVE-2023-6207)
It discovered that Thudnerbird incorrectly did not properly manage copy
operations when using Selection API in X11. An attacker could potentially
exploit this issue to obtain sensitive information. (CVE-2023-6208)
Rachmat Abdul Rokhim discovered that Thunderbird incorrectly handled
parsing of relative URLS starting with "///". An attacker could potentially
exploit this issue to cause a denial of service. (CVE-2023-6209)
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.
References:
  https://ubuntu.com/security/notices/USN-6515-1
  CVE-2023-6204, CVE-2023-6205, CVE-2023-6206, CVE-2023-6207,
  CVE-2023-6208, CVE-2023-6209, CVE-2023-6212
Package Information:
  https://launchpad.net/ubuntu/+source/thunderbird/1:115.5.0+build1-0ubuntu0.23.10.1
  https://launchpad.net/ubuntu/+source/thunderbird/1:115.5.0+build1-0ubuntu0.23.04.1
  https://launchpad.net/ubuntu/+source/thunderbird/1:115.5.0+build1-0ubuntu0.22.04.1
  https://launchpad.net/ubuntu/+source/thunderbird/1:115.5.0+build1-0ubuntu0.20.04.1