USN-3705-1: Firefox vulnerabilities

Releases

• Ubuntu 18.04 ESM
• Ubuntu 17.10
• Ubuntu 16.04 ESM
• Ubuntu 14.04 ESM

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

• firefox - 61.0+build3-0ubuntu0.18.04.1

Ubuntu 17.10

• firefox - 61.0+build3-0ubuntu0.17.10.1

Ubuntu 16.04

• firefox - 61.0+build3-0ubuntu0.16.04.2

Ubuntu 14.04

• firefox - 61.0+build3-0ubuntu0.14.04.2

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

References

• 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-2018-12369
• CVE-2018-12370
• CVE-2018-12371

Related notices

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