USN-3596-1: Firefox vulnerabilities
14 March 2018
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 cause a denial of service via application
crash or opening new tabs, escape the sandbox, bypass same-origin
restrictions, obtain sensitive information, confuse the user with
misleading permission requests, or execute arbitrary code. (CVE-2018-5125,
CVE-2018-5126, CVE-2018-5127, CVE-2018-5128, CVE-2018-5129, CVE-2018-5130,
CVE-2018-5136, CVE-2018-5137, CVE-2018-5140, CVE-2018-5141, CVE-2018-5142)
It was discovered that the fetch() API could incorrectly return cached
copies of no-store/no-cache resources in some circumstances. A local
attacker could potentially exploit this to obtain sensitive information in
environments where multiple users share a common profile. (CVE-2018-5131)
Multiple security issues were discovered with WebExtensions. If a user
were tricked in to installing a specially crafted extension, an attacker
could potentially exploit these to obtain sensitive information or bypass
security restrictions. (CVE-2018-5132, CVE-2018-5134, CVE-2018-5135)
It was discovered that the value of app.support.baseURL is not sanitized
properly. If a malicious local application were to set this to a specially
crafted value, an attacker could potentially exploit this to execute
arbitrary code. (CVE-2018-5133)
It was discovered that javascript: URLs with embedded tab characters could
be pasted in to the addressbar. If a user were tricked in to copying a
specially crafted URL in to the addressbar, an attacker could exploit this
to conduct cross-site scripting (XSS) attacks. (CVE-2018-5143)
Update instructions
The problem can be corrected by updating your system to the following package versions:
Ubuntu 17.10
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-3545-1: 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-3688-1: mozjs52, libmozjs-52-0, libmozjs-52-dev