Your submission was sent successfully! Close

You have successfully unsubscribed! Close

USN-5321-2: Firefox vulnerabilities

17 March 2022

Firefox could be made to crash or run programs as your login if it opened a malicious website.

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

Releases

Packages

  • firefox - Mozilla Open Source web browser

Details

USN-5321-1 fixed vulnerabilities in Firefox. The update didn't include
arm64 because of a regression. This update provides the corresponding
update for arm64.

This update also removes Yandex and Mail.ru as optional search providers
in the drop-down search menu.

Original advisory details:

Multiple security issues were discovered in Firefox. If a user were
tricked into opening a specially crafted website, an attacker could
potentially exploit these to cause a denial of service, spoof the browser
UI, bypass security restrictions, obtain sensitive information, or execute
arbitrary code. (CVE-2022-0843, CVE-2022-26381, CVE-2022-26382,
CVE-2022-26383, CVE-2022-26384, CVE-2022-26385)

A TOCTOU bug was discovered when verifying addon signatures during
install. A local attacker could potentially exploit this to trick a
user into installing an addon with an invalid signature.
(CVE-2022-26387)

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 21.10
Ubuntu 20.04
Ubuntu 18.04

After a standard system update you need to restart Firefox to make
all the necessary changes.

Related notices

  • USN-5321-1: firefox-locale-as, firefox-locale-gl, firefox-locale-cs, firefox-locale-ast, firefox-locale-ja, firefox-locale-hr, firefox-locale-or, firefox-locale-mr, firefox-locale-it, firefox-locale-oc, firefox-mozsymbols, firefox-locale-an, firefox-locale-zu, firefox-locale-mai, firefox-locale-ms, firefox-locale-ia, firefox-locale-ru, firefox-locale-ka, firefox-locale-sv, firefox-locale-ta, firefox-locale-lt, firefox-locale-lg, firefox-locale-bg, firefox-locale-is, firefox-locale-et, firefox-dev, firefox-locale-ca, firefox-locale-nso, firefox-locale-cy, firefox-locale-sq, firefox-locale-hsb, firefox-locale-kn, firefox-locale-ga, firefox-locale-km, firefox-locale-gn, firefox-locale-te, firefox-locale-be, firefox-locale-si, firefox-locale-kab, firefox-locale-uz, firefox-locale-ur, firefox-locale-ar, firefox-locale-nl, firefox-locale-xh, firefox-locale-bs, firefox-locale-cak, firefox-locale-uk, firefox-locale-nb, firefox-locale-en, firefox-locale-sr, firefox-locale-ml, firefox-locale-hi, firefox-locale-zh-hans, firefox-locale-kk, firefox-locale-sk, firefox-locale-nn, firefox-locale-my, firefox-locale-ku, firefox-locale-fa, firefox-locale-tr, firefox-locale-gu, firefox-locale-br, firefox-locale-szl, firefox-locale-el, firefox-locale-de, firefox-locale-ne, firefox-locale-bn, firefox-locale-fy, firefox-locale-hu, firefox-geckodriver, firefox-locale-sl, firefox-locale-fr, firefox-locale-ro, firefox-locale-es, firefox-locale-he, firefox-locale-mn, firefox-locale-eo, firefox-locale-ko, firefox-locale-hy, firefox-locale-pl, firefox-locale-eu, firefox-locale-zh-hant, firefox-locale-id, firefox-locale-csb, firefox-locale-pt, firefox-locale-af, firefox-locale-fi, firefox-locale-da, firefox-locale-th, firefox, firefox-locale-gd, firefox-locale-sw, firefox-locale-az, firefox-locale-lv, firefox-locale-pa, firefox-locale-vi, firefox-locale-mk
  • USN-5345-1: thunderbird-locale-id, thunderbird-locale-hy, thunderbird-locale-hr, thunderbird-locale-ko, thunderbird-locale-kk, thunderbird-locale-cs, thunderbird-locale-nb-no, thunderbird-locale-pa, thunderbird-locale-nn, thunderbird-mozsymbols, thunderbird-locale-ms, thunderbird-locale-ga, xul-ext-gdata-provider, thunderbird-locale-lt, thunderbird-locale-ga-ie, thunderbird-locale-be, thunderbird-locale-th, thunderbird-locale-bn-bd, thunderbird-locale-is, thunderbird-locale-vi, thunderbird-locale-zh-hans, thunderbird-locale-zh-hant, thunderbird-locale-pt-pt, thunderbird-locale-nl, thunderbird-locale-sr, thunderbird-locale-uz, xul-ext-lightning, thunderbird-locale-pt-br, thunderbird-locale-es-es, thunderbird-locale-kab, thunderbird-locale-hu, thunderbird-locale-he, thunderbird-locale-dsb, thunderbird-locale-pa-in, thunderbird-locale-cak, thunderbird, thunderbird-locale-es-ar, thunderbird-locale-sq, thunderbird-locale-fr, thunderbird-dev, thunderbird-locale-es, thunderbird-locale-ja, thunderbird-locale-si, thunderbird-locale-ro, thunderbird-locale-bn, thunderbird-locale-ca, thunderbird-locale-fi, thunderbird-locale-da, xul-ext-calendar-timezones, thunderbird-locale-ka, thunderbird-locale-pt, thunderbird-locale-pl, thunderbird-locale-nb, thunderbird-locale-gl, thunderbird-locale-en, thunderbird-locale-eu, thunderbird-locale-ast, thunderbird-locale-nn-no, thunderbird-locale-tr, thunderbird-locale-ta, thunderbird-locale-af, thunderbird-locale-zh-tw, thunderbird-locale-bg, thunderbird-locale-cy, thunderbird-locale-fy, thunderbird-locale-ru, thunderbird-locale-en-us, thunderbird-locale-gd, thunderbird-gnome-support, thunderbird-locale-sv, thunderbird-locale-uk, thunderbird-locale-hsb, thunderbird-locale-ta-lk, thunderbird-locale-zh-cn, thunderbird-locale-br, thunderbird-locale-et, thunderbird-locale-sk, thunderbird-locale-de, thunderbird-locale-lv, thunderbird-locale-fa, thunderbird-locale-en-gb, thunderbird-locale-it, thunderbird-locale-sv-se, thunderbird-locale-mk, thunderbird-locale-sl, thunderbird-locale-rm, thunderbird-locale-el, thunderbird-locale-fy-nl, thunderbird-locale-ar