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USN-4278-2: Firefox vulnerabilities

26 February 2020

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

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Releases

Packages

  • firefox - Mozilla Open Source web browser

Details

USN-4278-1 fixed vulnerabilities in Firefox. This update provides the
corresponding update for Ubuntu 16.04 LTS.

Original advisory details:

Multiple security issues were discovered in Firefox. If a user were tricked
in to opening a specially crafted website, an attacker could potentially
exploit these to cause a denial of service, conduct cross-site scripting
(XSS) attacks, or execute arbitrary code.

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 16.04

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

Related notices

  • USN-4278-1: firefox-locale-km, firefox-geckodriver, firefox-locale-or, firefox-locale-da, firefox-locale-ko, firefox-locale-nso, firefox-dev, firefox-locale-ml, firefox-locale-ar, firefox-locale-gn, firefox-locale-sw, firefox-locale-be, firefox-locale-is, firefox-locale-sk, firefox-locale-sl, firefox-locale-ru, firefox-locale-ca, firefox-locale-nl, firefox-locale-es, firefox-locale-ka, firefox-locale-gl, firefox-locale-lv, firefox-locale-it, firefox-locale-sv, firefox-locale-af, firefox-locale-he, firefox-locale-mn, firefox-locale-pt, firefox-locale-cs, firefox, firefox-locale-xh, firefox-locale-fr, firefox-locale-si, firefox-locale-te, firefox-locale-et, firefox-locale-ia, firefox-locale-kk, firefox-locale-th, firefox-locale-zh-hant, firefox-locale-tr, firefox-locale-mai, firefox-locale-sr, firefox-locale-as, firefox-locale-fa, firefox-locale-br, firefox-locale-fy, firefox-locale-bs, firefox-locale-vi, firefox-locale-bn, firefox-mozsymbols, firefox-locale-ku, firefox-locale-mr, firefox-locale-an, firefox-locale-de, firefox-locale-ast, firefox-locale-hi, firefox-locale-nn, firefox-locale-gu, firefox-locale-bg, firefox-locale-zu, firefox-locale-az, firefox-locale-hsb, firefox-locale-en, firefox-locale-ur, firefox-locale-eo, firefox-locale-nb, firefox-locale-cy, firefox-locale-csb, firefox-locale-hu, firefox-locale-cak, firefox-locale-pa, firefox-locale-oc, firefox-locale-sq, firefox-locale-el, firefox-locale-fi, firefox-locale-uz, firefox-locale-id, firefox-locale-zh-hans, firefox-locale-uk, firefox-locale-ro, firefox-locale-pl, firefox-locale-kab, firefox-locale-my, firefox-locale-ga, firefox-locale-ta, firefox-locale-eu, firefox-locale-gd, firefox-locale-ja, firefox-locale-lt, firefox-locale-hr, firefox-locale-hy, firefox-locale-lg, firefox-locale-ms, firefox-locale-kn, firefox-locale-ne, firefox-locale-mk
  • USN-4328-1: thunderbird-locale-nb, thunderbird-dev, thunderbird-locale-lt, thunderbird-locale-pt, thunderbird-locale-fy, thunderbird-gnome-support, thunderbird-locale-gl, thunderbird-locale-ast, thunderbird-locale-cak, thunderbird-locale-mk, thunderbird-locale-ms, thunderbird-locale-et, thunderbird-locale-ga-ie, thunderbird-locale-sv-se, thunderbird-locale-ja, thunderbird-locale-zh-hant, thunderbird-locale-nb-no, thunderbird-locale-pt-br, thunderbird-locale-pa, thunderbird-locale-de, thunderbird-locale-be, thunderbird-locale-zh-hans, thunderbird-locale-ca, thunderbird-locale-en-gb, thunderbird-locale-pl, thunderbird-locale-ru, thunderbird-locale-es-ar, xul-ext-lightning, xul-ext-gdata-provider, thunderbird-locale-sk, thunderbird-locale-cy, thunderbird-locale-hu, thunderbird-locale-el, thunderbird-locale-rm, thunderbird-locale-eu, thunderbird-locale-ta-lk, thunderbird-locale-pa-in, thunderbird-locale-he, thunderbird-locale-ko, thunderbird-locale-fy-nl, thunderbird-locale-en-us, xul-ext-calendar-timezones, thunderbird-locale-tr, thunderbird-locale-br, thunderbird-locale-af, thunderbird-locale-nn-no, thunderbird-locale-uz, thunderbird-locale-id, thunderbird-locale-kk, thunderbird-locale-uk, thunderbird-locale-hsb, thunderbird-locale-pt-pt, thunderbird-locale-sv, thunderbird-locale-ro, thunderbird-locale-da, thunderbird-locale-sl, thunderbird-locale-si, thunderbird-locale-es-es, thunderbird-locale-kab, thunderbird-locale-hr, thunderbird-locale-nl, thunderbird-locale-cs, thunderbird, thunderbird-mozsymbols, thunderbird-locale-vi, thunderbird-locale-zh-cn, thunderbird-locale-is, thunderbird-locale-ta, thunderbird-locale-nn, thunderbird-locale-bn-bd, thunderbird-locale-zh-tw, thunderbird-locale-fr, thunderbird-locale-ka, thunderbird-locale-dsb, thunderbird-locale-ar, thunderbird-locale-hy, thunderbird-locale-en, thunderbird-locale-sq, thunderbird-locale-es, thunderbird-locale-sr, thunderbird-locale-it, thunderbird-locale-gd, thunderbird-locale-bn, thunderbird-locale-ga, thunderbird-locale-fi, thunderbird-locale-bg
  • USN-4335-1: thunderbird-locale-nb, thunderbird-dev, thunderbird-locale-lt, thunderbird-locale-pt, thunderbird-locale-fy, thunderbird-gnome-support, thunderbird-locale-gl, thunderbird-locale-ast, thunderbird-locale-cak, thunderbird-locale-mk, thunderbird-locale-ms, thunderbird-locale-et, thunderbird-locale-ga-ie, thunderbird-locale-sv-se, thunderbird-locale-ja, thunderbird-locale-zh-hant, thunderbird-locale-nb-no, thunderbird-locale-pt-br, thunderbird-locale-pa, thunderbird-locale-de, thunderbird-locale-be, thunderbird-locale-zh-hans, thunderbird-locale-ca, thunderbird-locale-en-gb, thunderbird-locale-pl, thunderbird-locale-ru, thunderbird-locale-es-ar, xul-ext-lightning, xul-ext-gdata-provider, thunderbird-locale-sk, thunderbird-locale-cy, thunderbird-locale-hu, thunderbird-locale-el, thunderbird-locale-rm, thunderbird-locale-eu, thunderbird-locale-ta-lk, thunderbird-locale-pa-in, thunderbird-locale-he, thunderbird-locale-ko, thunderbird-locale-fy-nl, thunderbird-locale-en-us, xul-ext-calendar-timezones, thunderbird-locale-tr, thunderbird-locale-br, thunderbird-locale-af, thunderbird-locale-nn-no, thunderbird-locale-uz, thunderbird-locale-id, thunderbird-locale-kk, thunderbird-locale-uk, thunderbird-locale-hsb, thunderbird-locale-pt-pt, thunderbird-locale-sv, thunderbird-locale-ro, thunderbird-locale-da, thunderbird-locale-sl, thunderbird-locale-si, thunderbird-locale-es-es, thunderbird-locale-kab, thunderbird-locale-hr, thunderbird-locale-nl, thunderbird-locale-cs, thunderbird, thunderbird-mozsymbols, thunderbird-locale-vi, thunderbird-locale-zh-cn, thunderbird-locale-is, thunderbird-locale-ta, thunderbird-locale-nn, thunderbird-locale-bn-bd, thunderbird-locale-zh-tw, thunderbird-locale-fr, thunderbird-locale-ka, thunderbird-locale-dsb, thunderbird-locale-ar, thunderbird-locale-hy, thunderbird-locale-en, thunderbird-locale-sq, thunderbird-locale-es, thunderbird-locale-sr, thunderbird-locale-it, thunderbird-locale-gd, thunderbird-locale-bn, thunderbird-locale-ga, thunderbird-locale-fi, thunderbird-locale-bg