USN-5726-1: Firefox vulnerabilities

Releases

• Ubuntu 20.04 LTS
• Ubuntu 18.04 ESM

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, spoof the contents of the
addressbar, bypass security restrictions, cross-site tracing or execute
arbitrary code. (CVE-2022-45403, CVE-2022-45404, CVE-2022-45405,
CVE-2022-45406, CVE-2022-45407, CVE-2022-45408, CVE-2022-45409, CVE-2022-45410,
CVE-2022-45411, CVE-2022-45413, CVE-2022-40674, CVE-2022-45418, CVE-2022-45419,
CVE-2022-45420, CVE-2022-45421)

Armin Ebert discovered that Firefox did not properly manage while resolving
file symlink. If a user were tricked into opening a specially crafted weblink,
an attacker could potentially exploit these to cause a denial of service.
(CVE-2022-45412)

Jefferson Scher and Jayateertha Guruprasad discovered that Firefox did not
properly sanitize the HTML download file extension under certain circumstances.
If a user were tricked into downloading and executing malicious content, a
remote attacker could execute arbitrary code with the privileges of the user
invoking the programs. (CVE-2022-45415)

Erik Kraft, Martin Schwarzl, and Andrew McCreight discovered that Firefox
incorrectly handled keyboard events. An attacker could possibly use this
issue to perform a timing side-channel attack and possibly figure out which
keys are being pressed. (CVE-2022-45416)

Kagami discovered that Firefox did not detect Private Browsing Mode correctly.
An attacker could possibly use this issue to obtain sensitive information about
Private Browsing Mode.
(CVE-2022-45417)

Update instructions

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

Ubuntu 20.04

• firefox - 107.0+build2-0ubuntu0.20.04.1

Ubuntu 18.04

• firefox - 107.0+build2-0ubuntu0.18.04.1

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

References

• CVE-2022-40674
• CVE-2022-45415
• CVE-2022-45409
• CVE-2022-45412
• CVE-2022-45406
• CVE-2022-45417
• CVE-2022-45413
• CVE-2022-45416
• CVE-2022-45419
• CVE-2022-45404
• CVE-2022-45403
• CVE-2022-45420
• CVE-2022-45421
• CVE-2022-45407
• CVE-2022-45418
• CVE-2022-45410
• CVE-2022-45411
• CVE-2022-45405
• CVE-2022-45408

Related notices

• USN-5638-1: libexpat1, lib64expat1, libexpat1-dev, expat, lib64expat1-dev
• USN-5638-2: libexpat1-dev, libexpat1, expat
• USN-5638-4: libexpat1, lib64expat1, libexpat1-dev, expat, lib64expat1-dev
• USN-5824-1: thunderbird-locale-gd, thunderbird-locale-tr, thunderbird-locale-pl, thunderbird-locale-ms, thunderbird-gnome-support, thunderbird-locale-sq, thunderbird-locale-he, thunderbird-locale-fy, thunderbird-locale-uk, thunderbird-locale-nn-no, thunderbird-locale-en-gb, thunderbird-locale-fi, thunderbird-locale-cs, thunderbird-locale-da, thunderbird-locale-th, thunderbird-locale-hsb, thunderbird-locale-zh-hant, thunderbird-locale-ga-ie, thunderbird-locale-lv, thunderbird-locale-nl, thunderbird-locale-br, thunderbird-locale-ro, thunderbird-locale-hy, thunderbird-locale-ja, thunderbird-locale-de, thunderbird-locale-zh-tw, thunderbird-locale-cak, thunderbird-locale-rm, thunderbird-locale-fr, thunderbird-mozsymbols, xul-ext-lightning, thunderbird-locale-pa-in, thunderbird-locale-id, thunderbird-locale-kab, thunderbird-locale-uz, thunderbird-locale-ta-lk, thunderbird-locale-ga, thunderbird-locale-cy, thunderbird-locale-el, thunderbird-locale-mk, thunderbird-locale-nn, thunderbird-locale-ta, thunderbird-locale-eu, thunderbird-locale-ka, thunderbird-locale-pt, thunderbird-locale-gl, thunderbird-locale-bg, thunderbird-locale-ca, thunderbird-locale-fy-nl, thunderbird-locale-bn-bd, thunderbird-locale-nb, thunderbird-dev, thunderbird-locale-sr, thunderbird-locale-fa, thunderbird-locale-pt-pt, thunderbird-locale-et, thunderbird-locale-zh-hans, xul-ext-calendar-timezones, thunderbird-locale-en, thunderbird-locale-es-ar, thunderbird-locale-ru, thunderbird-locale-is, thunderbird-locale-zh-cn, thunderbird-locale-sl, thunderbird-locale-lt, thunderbird-locale-ast, thunderbird-locale-ar, thunderbird-locale-be, thunderbird-locale-sv-se, thunderbird-locale-sv, thunderbird-locale-dsb, thunderbird-locale-af, thunderbird-locale-nb-no, xul-ext-gdata-provider, thunderbird-locale-bn, thunderbird-locale-en-us, thunderbird-locale-pt-br, thunderbird-locale-vi, thunderbird-locale-hu, thunderbird-locale-es-es, thunderbird-locale-ko, thunderbird-locale-es, thunderbird-locale-sk, thunderbird-locale-kk, thunderbird-locale-si, thunderbird-locale-hr, thunderbird-locale-it, thunderbird-locale-pa, thunderbird