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USN-4054-1: Firefox vulnerabilities

12 July 2019

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

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Releases

Packages

  • firefox - Mozilla Open Source web browser

Details

A sandbox escape was discovered in Firefox. If a user were tricked in to
installing a malicious language pack, an attacker could exploit this to
gain additional privileges. (CVE-2019-9811)

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, obtain sensitive
information, bypass same origin restrictions, conduct cross-site scripting
(XSS) attacks, conduct cross-site request forgery (CSRF) attacks, spoof
origin attributes, spoof the addressbar contents, bypass safebrowsing
protections, or execute arbitrary code. (CVE-2019-11709, CVE-2019-11710,
CVE-2019-11711, CVE-2019-11712, CVE-2019-11713, CVE-2019-11714,
CVE-2019-11715, CVE-2019-11716, CVE-2019-11717, CVE-2019-11718,
CVE-2019-11719, CVE-2019-11720, CVE-2019-11721, CVE-2019-11723,
CVE-2019-11724, CVE-2019-11725, CVE-2019-11727, CVE-2019-11728,
CVE-2019-11729)

It was discovered that Firefox treats all files in a directory as same
origin. If a user were tricked in to downloading a specially crafted HTML
file, an attacker could potentially exploit this to obtain sensitive
information from local files. (CVE-2019-11730)

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.

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Update instructions

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

Ubuntu 19.04
Ubuntu 18.10
Ubuntu 18.04
Ubuntu 16.04

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

Related notices

  • USN-4064-1: thunderbird-locale-sl, thunderbird-locale-sr, thunderbird-locale-he, thunderbird-locale-bn, thunderbird-locale-af, thunderbird-locale-es-ar, thunderbird-locale-pt, thunderbird-locale-ru, thunderbird-locale-hr, thunderbird-locale-ta, thunderbird-locale-ar, thunderbird-locale-fr, thunderbird-locale-vi, thunderbird-locale-zh-tw, thunderbird-locale-id, thunderbird-locale-si, thunderbird-locale-pl, thunderbird-gnome-support, thunderbird, thunderbird-locale-ms, thunderbird-locale-is, xul-ext-calendar-timezones, thunderbird-locale-it, thunderbird-locale-cy, thunderbird-locale-zh-hant, thunderbird-locale-nb-no, xul-ext-gdata-provider, thunderbird-locale-hsb, thunderbird-locale-zh-hans, thunderbird-locale-pa-in, thunderbird-locale-da, thunderbird-locale-fy-nl, thunderbird-locale-fi, thunderbird-locale-rm, thunderbird-locale-de, thunderbird-locale-bn-bd, thunderbird-locale-hy, thunderbird-locale-sv, thunderbird-locale-cs, thunderbird-locale-ka, thunderbird-locale-es-es, thunderbird-locale-kk, thunderbird-locale-gd, thunderbird-locale-ga-ie, thunderbird-locale-et, thunderbird-locale-ga, thunderbird-locale-nn, thunderbird-locale-tr, thunderbird-locale-bg, thunderbird-locale-br, thunderbird-locale-en, thunderbird-locale-ast, xul-ext-lightning, thunderbird-locale-ko, thunderbird-locale-ca, thunderbird-locale-nb, thunderbird-locale-hu, thunderbird-locale-es, thunderbird-locale-eu, thunderbird-locale-ja, thunderbird-locale-ta-lk, thunderbird-locale-gl, thunderbird-locale-lt, thunderbird-locale-en-gb, thunderbird-locale-nl, thunderbird-globalmenu, thunderbird-locale-fy, thunderbird-locale-el, thunderbird-locale-mk, thunderbird-locale-uk, thunderbird-locale-sv-se, thunderbird-locale-pt-pt, thunderbird-mozsymbols, thunderbird-locale-pa, thunderbird-locale-pt-br, thunderbird-locale-dsb, thunderbird-locale-sk, thunderbird-locale-zh-cn, thunderbird-dev, thunderbird-locale-be, thunderbird-locale-sq, thunderbird-locale-en-us, thunderbird-locale-kab, thunderbird-locale-nn-no, thunderbird-locale-ro
  • USN-4060-2: nss, libnss3-tools, libnss3-dev, libnss3-1d, libnss3, libnss3-nssdb
  • USN-4060-1: nss, libnss3-tools, libnss3-dev, libnss3-1d, libnss3, libnss3-nssdb