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USN-5284-1: Firefox vulnerabilities

14 February 2022

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

Multiple security issues were discovered in Firefox. If a user were
tricked into opening a specially crafted website, an attacker could
potentially exploit these to cause a denial of service, bypass security
restrictions, obtain sensitive information, or execute arbitrary code.
(CVE-2022-0511, CVE-2022-22755, CVE-2022-22759, CVE-2022-22760,
CVE-2022-22761, CVE-2022-22764)

It was discovered that extensions of a particular type could auto-update
themselves and bypass the prompt that requests permissions. If a user
were tricked into installing a specially crafted extension, an attacker
could potentially exploit this to bypass security restrictions.
(CVE-2022-22754)

It was discovered that dragging and dropping an image into a folder could
result in it being marked as executable. If a user were tricked into
dragging and dropping a specially crafted image, an attacker could
potentially exploit this to execute arbitrary code. (CVE-2022-22756)

It was discovered that Remote Agent, used in WebDriver, did not validate
Host or Origin headers. If a user were tricked into opening a specially
crafted website with WebDriver enabled, an attacker could potentially
exploit this to connect back to the user's browser in order to control
it. (CVE-2022-22757)

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.

Learn more about Ubuntu Pro

Update instructions

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

Ubuntu 21.10
Ubuntu 20.04
Ubuntu 18.04

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

Related notices

  • USN-5345-1: thunderbird-locale-ms, thunderbird-locale-lt, thunderbird-locale-sv, thunderbird-locale-be, thunderbird-locale-dsb, thunderbird-locale-gl, thunderbird-locale-ta-lk, thunderbird-locale-it, thunderbird-locale-zh-hans, xul-ext-lightning, thunderbird-locale-ta, thunderbird-locale-ro, thunderbird-locale-vi, thunderbird-locale-sk, thunderbird-locale-cak, thunderbird-locale-bg, thunderbird-locale-fy, xul-ext-calendar-timezones, thunderbird-locale-es-ar, thunderbird-locale-pt-br, thunderbird-locale-en-gb, thunderbird-locale-fi, thunderbird-locale-es, thunderbird-locale-uz, thunderbird, thunderbird-locale-bn, thunderbird-locale-fr, thunderbird-locale-nl, thunderbird-locale-pl, thunderbird-locale-zh-cn, thunderbird-locale-hu, thunderbird-locale-si, thunderbird-locale-sv-se, thunderbird-locale-kab, thunderbird-dev, thunderbird-locale-nb, thunderbird-locale-ar, thunderbird-locale-lv, thunderbird-locale-fy-nl, thunderbird-locale-ca, thunderbird-locale-en, thunderbird-locale-kk, thunderbird-locale-br, thunderbird-locale-cy, thunderbird-locale-et, thunderbird-locale-gd, thunderbird-locale-ja, thunderbird-locale-hr, thunderbird-locale-ga, thunderbird-locale-ast, thunderbird-locale-pt, thunderbird-locale-is, thunderbird-locale-ka, thunderbird-locale-cs, thunderbird-locale-tr, thunderbird-locale-nn-no, thunderbird-locale-hy, thunderbird-locale-pa-in, thunderbird-locale-sq, thunderbird-mozsymbols, thunderbird-locale-nn, thunderbird-locale-ru, thunderbird-locale-es-es, thunderbird-locale-th, thunderbird-locale-sl, thunderbird-locale-id, thunderbird-gnome-support, thunderbird-locale-rm, thunderbird-locale-uk, thunderbird-locale-pa, thunderbird-locale-zh-tw, thunderbird-locale-el, thunderbird-locale-ga-ie, thunderbird-locale-he, thunderbird-locale-eu, thunderbird-locale-bn-bd, thunderbird-locale-af, thunderbird-locale-da, thunderbird-locale-nb-no, xul-ext-gdata-provider, thunderbird-locale-zh-hant, thunderbird-locale-de, thunderbird-locale-en-us, thunderbird-locale-pt-pt, thunderbird-locale-hsb, thunderbird-locale-mk, thunderbird-locale-ko, thunderbird-locale-fa, thunderbird-locale-sr