USN-4054-1: Firefox vulnerabilities

Releases

• Ubuntu 19.04
• Ubuntu 18.10
• Ubuntu 18.04 ESM
• Ubuntu 16.04 ESM

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)

Update instructions

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

Ubuntu 19.04

• firefox - 68.0+build3-0ubuntu0.19.04.1

Ubuntu 18.10

• firefox - 68.0+build3-0ubuntu0.18.10.1

Ubuntu 18.04

• firefox - 68.0+build3-0ubuntu0.18.04.1

Ubuntu 16.04

• firefox - 68.0+build3-0ubuntu0.16.04.1

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

References

• CVE-2019-9811
• 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
• CVE-2019-11730

Related notices

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