USN-3435-1: Firefox vulnerabilities
2 October 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 read uninitialized memory, obtain sensitive
information, bypass phishing and malware protection, spoof the origin in
modal dialogs, conduct cross-site scripting (XSS) attacks, cause a denial
of service via application crash, or execute arbitrary code.
(CVE-2017-7793, CVE-2017-7810, CVE-2017-7811, CVE-2017-7812,
CVE-2017-7813, CVE-2017-7814, CVE-2017-7815, CVE-2017-7818, CVE-2017-7819,
CVE-2017-7820, CVE-2017-7822, CVE-2017-7823, CVE-2017-7824)
Martin Thomson discovered that NSS incorrectly generated handshake hashes.
A remote attacker could potentially exploit this to cause a denial of
service via application crash, or execute arbitrary code. (CVE-2017-7805)
Multiple security issues were discovered in WebExtensions. If a user were
tricked in to installing a specially crafted extension, an attacker could
potentially exploit these to download and open non-executable files
without interaction, or obtain elevated privileges. (CVE-2017-7816,
CVE-2017-7821)
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-3436-1: thunderbird-locale-zh-cn, thunderbird-locale-fr, thunderbird-locale-eu, thunderbird-mozsymbols, thunderbird-locale-gl, thunderbird-locale-ga-ie, thunderbird-locale-ka, thunderbird-locale-ta-lk, thunderbird-locale-he, xul-ext-gdata-provider, thunderbird-locale-hu, thunderbird-locale-cs, thunderbird-locale-pt, thunderbird-locale-sr, thunderbird-dev, thunderbird-locale-pt-pt, thunderbird-locale-zh-hant, thunderbird-locale-en, thunderbird-locale-cy, thunderbird-locale-es-ar, thunderbird-locale-br, thunderbird-gnome-support, thunderbird-locale-ru, xul-ext-calendar-timezones, thunderbird-locale-dsb, thunderbird-locale-ca, thunderbird-locale-es, thunderbird-locale-vi, thunderbird-locale-ast, thunderbird-locale-fy, thunderbird-locale-ar, thunderbird-locale-sl, thunderbird-locale-sv-se, thunderbird-locale-pt-br, thunderbird-locale-nn-no, thunderbird-locale-fi, thunderbird-locale-bg, thunderbird-locale-fy-nl, thunderbird-locale-lt, thunderbird-locale-nb-no, thunderbird-locale-en-us, thunderbird-locale-kab, thunderbird-locale-hsb, thunderbird-locale-nb, thunderbird-locale-rm, thunderbird-locale-nn, thunderbird-locale-da, thunderbird-locale-pa, thunderbird-globalmenu, thunderbird-locale-sv, thunderbird-locale-be, thunderbird-locale-el, thunderbird-locale-sk, xul-ext-lightning, thunderbird-locale-nl, thunderbird-locale-hr, thunderbird-locale-de, thunderbird-locale-bn, thunderbird-locale-es-es, thunderbird-locale-pa-in, thunderbird-locale-ja, thunderbird-locale-af, thunderbird-locale-tr, thunderbird-locale-it, thunderbird-locale-zh-tw, thunderbird-locale-is, thunderbird-locale-gd, thunderbird-locale-si, thunderbird-locale-bn-bd, thunderbird-locale-en-gb, thunderbird-locale-id, thunderbird-locale-hy, thunderbird-locale-ta, thunderbird-locale-ro, thunderbird-locale-uk, thunderbird-locale-pl, thunderbird-locale-et, thunderbird-locale-ga, thunderbird-locale-zh-hans, thunderbird-testsuite, thunderbird-locale-ko, thunderbird-locale-mk, thunderbird, thunderbird-locale-sq
- USN-3431-1: libnss3-nssdb, libnss3-dev, nss, libnss3-tools, libnss3-1d, libnss3
- USN-3688-1: mozjs52, libmozjs-52-0, libmozjs-52-dev