1. Ubuntu Security Notices
  2. USN-5943-1

USN-5943-1: Thunderbird vulnerabilities

Publication date

13 March 2023

Overview

Several security issues were fixed in Thunderbird.

Releases

Packages

  • 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-2023-0616, CVE-2023-25735,
CVE-2023-25737, CVE-2023-25739, CVE-2023-25729, CVE-2023-25742,
CVE-2023-25746)

Johan Carlsson discovered that Thunderbird did not properly implement CSP
policy on a header when using iframes. An attacker could potentially
exploits this to exfiltrate data. (CVE-2023-25728)

Irvan...

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-2023-0616, CVE-2023-25735,
CVE-2023-25737, CVE-2023-25739, CVE-2023-25729, CVE-2023-25742,
CVE-2023-25746)

Johan Carlsson discovered that Thunderbird did not properly implement CSP
policy on a header when using iframes. An attacker could potentially
exploits this to exfiltrate data. (CVE-2023-25728)

Irvan Kurniawan discovered that Thunderbird was not properly handling
background fullscreen scripts when the window goes into fullscreen mode.
An attacker could possibly use this issue to spoof the user and obtain
sensitive information. (CVE-2023-25730)

Christian Holler discovered that Thunderbird did not properly check the
Safe Bag attributes in PKCS 12 certificate bundle. An attacker could
possibly use this issue to write to arbitrary memory by sending malicious
PKCS 12 certificate. (CVE-2023-0767)

Ronald Crane discovered that Thunderbird did not properly check the size of
the input being encoded in xpcom. An attacker could possibly use this issue
to perform out of bound memory write operations. (CVE-2023-25732)

Update instructions

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

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
22.10 kinetic thunderbird –  1:102.8.0+build2-0ubuntu0.22.10.1
22.04 jammy thunderbird –  1:102.8.0+build2-0ubuntu0.22.04.1
20.04 focal thunderbird –  1:102.8.0+build2-0ubuntu0.20.04.1
18.04 bionic thunderbird –  1:102.8.0+build2-0ubuntu0.18.04.1

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References

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