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USN-3391-1: Firefox vulnerabilities

15 August 2017

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 conduct cross-site scripting (XSS) attacks,
bypass sandbox restrictions, obtain sensitive information, spoof the
origin of modal alerts, bypass same origin restrictions, read
uninitialized memory, cause a denial of service via program crash or hang,
or execute arbitrary code. (CVE-2017-7753, CVE-2017-7779, CVE-2017-7780,
CVE-2017-7781, CVE-2017-7783, CVE-2017-7784, CVE-2017-7785, CVE-2017-7786,
CVE-2017-7787, CVE-2017-7788, CVE-2017-7789, CVE-2017-7791, CVE-2017-7792,
CVE-2017-7794, CVE-2017-7797, CVE-2017-7798, CVE-2017-7799, CVE-2017-7800,
CVE-2017-7801, CVE-2017-7802, CVE-2017-7803, CVE-2017-7806, CVE-2017-7807,
CVE-2017-7808, CVE-2017-7809)

Update instructions

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

Ubuntu 17.04
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-3416-1: thunderbird-locale-vi, thunderbird-locale-it, thunderbird-locale-nn-no, thunderbird-locale-zh-cn, thunderbird-locale-br, thunderbird-locale-zh-hans, thunderbird-locale-fi, thunderbird-locale-ko, xul-ext-calendar-timezones, thunderbird, thunderbird-locale-sk, thunderbird-locale-sq, thunderbird-locale-el, thunderbird-locale-ar, thunderbird-locale-eu, thunderbird-testsuite, thunderbird-locale-pt-br, thunderbird-locale-dsb, thunderbird-locale-bg, thunderbird-locale-sl, thunderbird-locale-mk, thunderbird-locale-hy, thunderbird-locale-be, thunderbird-locale-sv-se, thunderbird-locale-en-gb, thunderbird-locale-es, thunderbird-locale-ta-lk, thunderbird-locale-kab, thunderbird-locale-nb, thunderbird-locale-en-us, thunderbird-locale-ast, thunderbird-locale-sv, thunderbird-locale-nn, thunderbird-locale-he, thunderbird-locale-pa, thunderbird-locale-pa-in, thunderbird-locale-ga-ie, thunderbird-locale-de, thunderbird-locale-ca, thunderbird-locale-ta, thunderbird-locale-uk, thunderbird-locale-fy-nl, thunderbird-locale-et, xul-ext-lightning, thunderbird-gnome-support, thunderbird-locale-fy, thunderbird-locale-nb-no, thunderbird-locale-id, thunderbird-locale-zh-hant, thunderbird-locale-cy, thunderbird-locale-rm, thunderbird-locale-ja, thunderbird-locale-fr, thunderbird-mozsymbols, thunderbird-locale-gl, thunderbird-locale-ru, thunderbird-locale-pt-pt, thunderbird-locale-zh-tw, thunderbird-locale-da, thunderbird-locale-ga, thunderbird-locale-sr, xul-ext-gdata-provider, thunderbird-locale-gd, thunderbird-locale-pl, thunderbird-locale-hu, thunderbird-locale-ka, thunderbird-locale-af, thunderbird-locale-hr, thunderbird-locale-es-ar, thunderbird-locale-hsb, thunderbird-locale-en, thunderbird-locale-lt, thunderbird-locale-si, thunderbird-locale-tr, thunderbird-dev, thunderbird-locale-ro, thunderbird-locale-cs, thunderbird-globalmenu, thunderbird-locale-is, thunderbird-locale-es-es, thunderbird-locale-nl, thunderbird-locale-bn-bd, thunderbird-locale-bn, thunderbird-locale-pt