Your submission was sent successfully! Close

Thank you for contacting us. A member of our team will be in touch shortly. Close

You have successfully unsubscribed! Close

Thank you for signing up for our newsletter!
In these regular emails you will find the latest updates about Ubuntu and upcoming events where you can meet our team.Close

USN-4278-1: Firefox vulnerabilities

13 February 2020

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

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 19.10
Ubuntu 18.04

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

Related notices

  • USN-4278-2: firefox-locale-sk, firefox-locale-de, firefox-locale-hu, firefox-locale-en, firefox-locale-ms, firefox-locale-es, firefox-locale-an, firefox-locale-or, firefox-locale-ko, firefox-locale-ga, firefox-locale-ru, firefox-locale-ml, firefox-locale-sv, firefox-locale-ka, firefox-locale-fr, firefox-locale-ca, firefox-locale-af, firefox-locale-id, firefox-locale-sl, firefox-locale-mn, firefox-locale-bn, firefox-locale-cy, firefox-locale-mai, firefox-locale-gu, firefox-locale-uz, firefox-locale-zh-hans, firefox-locale-nn, firefox-dev, firefox-locale-kn, firefox-locale-ia, firefox-locale-he, firefox-locale-fi, firefox-locale-zh-hant, firefox-locale-kk, firefox-locale-eu, firefox-locale-zu, firefox-locale-ta, firefox-locale-nso, firefox-locale-da, firefox-locale-ku, firefox-locale-bs, firefox-locale-be, firefox-locale-tr, firefox-locale-as, firefox-locale-csb, firefox-locale-pt, firefox-locale-km, firefox-locale-el, firefox-locale-ro, firefox-locale-th, firefox-locale-it, firefox-locale-ja, firefox-locale-hsb, firefox-locale-oc, firefox-locale-az, firefox-locale-sq, firefox-locale-sr, firefox-locale-ar, firefox-locale-nb, firefox-locale-pa, firefox-mozsymbols, firefox-locale-br, firefox-locale-fy, firefox-locale-sw, firefox-locale-gd, firefox-locale-hy, firefox-locale-cak, firefox-locale-vi, firefox-locale-mr, firefox-locale-lv, firefox-locale-fa, firefox-locale-gn, firefox-locale-lg, firefox-locale-te, firefox-locale-ast, firefox-locale-nl, firefox-locale-hr, firefox-locale-mk, firefox-locale-hi, firefox-locale-et, firefox-locale-uk, firefox, firefox-locale-lt, firefox-locale-bg, firefox-locale-cs, firefox-locale-ne, firefox-locale-is, firefox-locale-kab, firefox-locale-eo, firefox-geckodriver, firefox-locale-xh, firefox-locale-ur, firefox-locale-my, firefox-locale-si, firefox-locale-gl, firefox-locale-pl
  • USN-4328-1: thunderbird-locale-it, thunderbird-locale-nl, thunderbird-locale-tr, thunderbird-locale-bn, thunderbird-locale-zh-tw, thunderbird-locale-pl, thunderbird-locale-pt-pt, thunderbird-locale-id, thunderbird-locale-et, thunderbird-locale-bn-bd, thunderbird-locale-sq, thunderbird-locale-es, thunderbird-locale-ga, thunderbird-locale-ca, thunderbird-locale-de, thunderbird-locale-ar, xul-ext-gdata-provider, thunderbird-locale-si, thunderbird-locale-fr, thunderbird-locale-pa, thunderbird-locale-en-gb, thunderbird-gnome-support, thunderbird-locale-fi, thunderbird-locale-pa-in, thunderbird-locale-fy, thunderbird-locale-hu, thunderbird-locale-gl, thunderbird-locale-ta-lk, thunderbird-locale-ga-ie, thunderbird-locale-hy, thunderbird-locale-kk, thunderbird-locale-mk, thunderbird-locale-el, thunderbird-locale-ru, thunderbird-locale-dsb, thunderbird-locale-uk, thunderbird-locale-ta, thunderbird-locale-nb-no, thunderbird-locale-fy-nl, thunderbird-locale-nb, thunderbird-locale-zh-hant, thunderbird-locale-zh-hans, thunderbird-locale-sk, thunderbird-locale-ms, thunderbird-locale-pt-br, thunderbird-locale-cak, thunderbird-locale-sl, xul-ext-lightning, thunderbird-locale-nn-no, thunderbird-locale-en, thunderbird-locale-kab, thunderbird-locale-ja, thunderbird-locale-sv, thunderbird-mozsymbols, xul-ext-calendar-timezones, thunderbird-locale-es-ar, thunderbird-locale-gd, thunderbird-locale-hsb, thunderbird-locale-pt, thunderbird-locale-en-us, thunderbird-locale-eu, thunderbird-locale-nn, thunderbird-locale-sr, thunderbird-locale-sv-se, thunderbird-locale-ast, thunderbird-locale-cy, thunderbird-locale-hr, thunderbird-locale-es-es, thunderbird-locale-lt, thunderbird-locale-br, thunderbird-locale-zh-cn, thunderbird-locale-ro, thunderbird-locale-af, thunderbird-dev, thunderbird-locale-be, thunderbird-locale-bg, thunderbird-locale-ka, thunderbird-locale-he, thunderbird-locale-ko, thunderbird-locale-rm, thunderbird-locale-vi, thunderbird-locale-cs, thunderbird-locale-da, thunderbird-locale-uz, thunderbird, thunderbird-locale-is
  • USN-4335-1: thunderbird-locale-it, thunderbird-locale-nl, thunderbird-locale-tr, thunderbird-locale-bn, thunderbird-locale-zh-tw, thunderbird-locale-pl, thunderbird-locale-pt-pt, thunderbird-locale-id, thunderbird-locale-et, thunderbird-locale-bn-bd, thunderbird-locale-sq, thunderbird-locale-es, thunderbird-locale-ga, thunderbird-locale-ca, thunderbird-locale-de, thunderbird-locale-ar, xul-ext-gdata-provider, thunderbird-locale-si, thunderbird-locale-fr, thunderbird-locale-pa, thunderbird-locale-en-gb, thunderbird-gnome-support, thunderbird-locale-fi, thunderbird-locale-pa-in, thunderbird-locale-fy, thunderbird-locale-hu, thunderbird-locale-gl, thunderbird-locale-ta-lk, thunderbird-locale-ga-ie, thunderbird-locale-hy, thunderbird-locale-kk, thunderbird-locale-mk, thunderbird-locale-el, thunderbird-locale-ru, thunderbird-locale-dsb, thunderbird-locale-uk, thunderbird-locale-ta, thunderbird-locale-nb-no, thunderbird-locale-fy-nl, thunderbird-locale-nb, thunderbird-locale-zh-hant, thunderbird-locale-zh-hans, thunderbird-locale-sk, thunderbird-locale-ms, thunderbird-locale-pt-br, thunderbird-locale-cak, thunderbird-locale-sl, xul-ext-lightning, thunderbird-locale-nn-no, thunderbird-locale-en, thunderbird-locale-kab, thunderbird-locale-ja, thunderbird-locale-sv, thunderbird-mozsymbols, xul-ext-calendar-timezones, thunderbird-locale-es-ar, thunderbird-locale-gd, thunderbird-locale-hsb, thunderbird-locale-pt, thunderbird-locale-en-us, thunderbird-locale-eu, thunderbird-locale-nn, thunderbird-locale-sr, thunderbird-locale-sv-se, thunderbird-locale-ast, thunderbird-locale-cy, thunderbird-locale-hr, thunderbird-locale-es-es, thunderbird-locale-lt, thunderbird-locale-br, thunderbird-locale-zh-cn, thunderbird-locale-ro, thunderbird-locale-af, thunderbird-dev, thunderbird-locale-be, thunderbird-locale-bg, thunderbird-locale-ka, thunderbird-locale-he, thunderbird-locale-ko, thunderbird-locale-rm, thunderbird-locale-vi, thunderbird-locale-cs, thunderbird-locale-da, thunderbird-locale-uz, thunderbird, thunderbird-locale-is