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USN-6468-1: Thunderbird vulnerabilities

2 November 2023

Several security issues were fixed in Thunderbird.

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Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

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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-2023-5724, 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)

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Update instructions

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

Ubuntu 23.10
Ubuntu 23.04
Ubuntu 22.04
Ubuntu 20.04

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

Related notices

  • USN-6456-1: firefox-locale-zh-hant, firefox-locale-pa, firefox-locale-be, firefox-locale-gn, firefox-locale-ia, firefox-locale-pt, firefox-locale-oc, firefox-locale-th, firefox-locale-nn, firefox-locale-or, firefox-locale-af, firefox-locale-hi, firefox-locale-kk, firefox-mozsymbols, firefox-locale-fi, firefox-locale-sk, firefox-locale-sl, firefox-locale-ro, firefox-locale-nl, firefox-locale-as, firefox-locale-it, firefox-locale-tg, firefox-locale-kab, firefox-geckodriver, firefox-locale-te, firefox-locale-ku, firefox-locale-zh-hans, firefox-locale-vi, firefox, firefox-locale-da, firefox-locale-sr, firefox-locale-si, firefox-locale-en, firefox-locale-uk, firefox-locale-eu, firefox-locale-br, firefox-locale-uz, firefox-locale-ga, firefox-locale-mn, firefox-dev, firefox-locale-kn, firefox-locale-eo, firefox-locale-lv, firefox-locale-sv, firefox-locale-csb, firefox-locale-ru, firefox-locale-bs, firefox-locale-mr, firefox-locale-de, firefox-locale-fr, firefox-locale-mk, firefox-locale-ast, firefox-locale-an, firefox-locale-ur, firefox-locale-szl, firefox-locale-lt, firefox-locale-tr, firefox-locale-ml, firefox-locale-ms, firefox-locale-nso, firefox-locale-hr, firefox-locale-hy, firefox-locale-ja, firefox-locale-fy, firefox-locale-gl, firefox-locale-lg, firefox-locale-ko, firefox-locale-cy, firefox-locale-az, firefox-locale-ca, firefox-locale-gu, firefox-locale-ta, firefox-locale-el, firefox-locale-et, firefox-locale-ne, firefox-locale-cak, firefox-locale-gd, firefox-locale-id, firefox-locale-zu, firefox-locale-ar, firefox-locale-cs, firefox-locale-nb, firefox-locale-pl, firefox-locale-hsb, firefox-locale-he, firefox-locale-mai, firefox-locale-fa, firefox-locale-ka, firefox-locale-sw, firefox-locale-my, firefox-locale-xh, firefox-locale-bn, firefox-locale-hu, firefox-locale-sq, firefox-locale-is, firefox-locale-km, firefox-locale-bg, firefox-locale-es