USN-3705-1: Firefox vulnerabilities

05 July 2018

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

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, read uninitialized
memory, bypass same-origin restrictions, bypass CORS restrictions,
bypass CSRF protections, obtain sensitive information, or execute
arbitrary code. (CVE-2018-5156, CVE-2018-5186, CVE-2018-5187,
CVE-2018-5188, CVE-2018-12358, CVE-2018-12359, CVE-2018-12360,
CVE-2018-12361, CVE-2018-12362, CVE-2018-12363, CVE-2018-12364,
CVE-2018-12365, CVE-2018-12366, CVE-2018-12367, CVE-2018-12370,
CVE-2018-12371)

A security issue was discovered with WebExtensions. If a user were
tricked in to installing a specially crafted extension, an attacker
could potentially exploit this to obtain full browser permissions.
(CVE-2018-12369)

Update instructions

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

Ubuntu 18.04
Ubuntu 17.10
Ubuntu 16.04
Ubuntu 14.04

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

Related notices

  • USN-3749-1: libmozjs-52-0, libmozjs-52-dev, mozjs52
  • USN-3714-1: thunderbird-locale-ga-ie, thunderbird-locale-pt-br, thunderbird-locale-en-gb, thunderbird-locale-et, thunderbird-locale-zh-tw, thunderbird-locale-hu, thunderbird-dev, thunderbird-locale-id, thunderbird-locale-bg, thunderbird-locale-rm, thunderbird-locale-be, thunderbird-testsuite, thunderbird-locale-sk, thunderbird-locale-ast, thunderbird-locale-es-ar, thunderbird-locale-si, thunderbird-locale-nn-no, thunderbird-locale-el, thunderbird-locale-nl, thunderbird-locale-zh-hans, thunderbird-gnome-support, thunderbird-locale-nb-no, thunderbird-locale-en, thunderbird-locale-ga, thunderbird-locale-af, xul-ext-gdata-provider, thunderbird-locale-sl, thunderbird-locale-uk, thunderbird-locale-nn, thunderbird-locale-bn, thunderbird-locale-hr, thunderbird-locale-da, thunderbird-locale-bn-bd, thunderbird-locale-pt-pt, thunderbird-locale-ta, thunderbird-locale-es, thunderbird-locale-pa-in, thunderbird-locale-fi, thunderbird-locale-dsb, thunderbird-locale-hsb, thunderbird-locale-ru, thunderbird-locale-pa, thunderbird-locale-is, thunderbird-locale-lt, thunderbird-locale-en-us, thunderbird-locale-cs, thunderbird-locale-sr, thunderbird-locale-kab, thunderbird-locale-es-es, thunderbird-locale-fr, thunderbird-locale-ro, thunderbird-locale-ta-lk, thunderbird-locale-gd, thunderbird-locale-hy, thunderbird-locale-ca, thunderbird-locale-mk, thunderbird-locale-sv-se, thunderbird-mozsymbols, thunderbird-locale-ko, thunderbird-locale-zh-hant, thunderbird-locale-sv, thunderbird-locale-ja, thunderbird-locale-gl, thunderbird-locale-vi, thunderbird-locale-tr, thunderbird-locale-ar, thunderbird-locale-fy-nl, thunderbird-globalmenu, thunderbird-locale-he, thunderbird-locale-zh-cn, thunderbird-locale-fy, thunderbird-locale-eu, thunderbird, thunderbird-locale-nb, thunderbird-locale-ka, thunderbird-locale-cy, xul-ext-lightning, thunderbird-locale-it, thunderbird-locale-sq, thunderbird-locale-pt, thunderbird-locale-de, xul-ext-calendar-timezones, thunderbird-locale-br, thunderbird-locale-pl