Your submission was sent successfully! Close

Thank you for contacting us. A member of our team will be in touch shortly. Close

You have successfully unsubscribed! Close

Thank you for signing up for our newsletter!
In these regular emails you will find the latest updates about Ubuntu and upcoming events where you can meet our team.Close

USN-4032-1: Firefox vulnerability

24 June 2019

A sandbox escape was discovered in Firefox.

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

Releases

Packages

  • firefox - Mozilla Open Source web browser

Details

It was discovered that a sandboxed child process could open arbitrary web
content in the parent process via the Prompt:Open IPC message. When
combined with another vulnerability, an attacker could potentially exploit
this to execute arbitrary code.

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 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.

References

Related notices

  • USN-4045-1: thunderbird-locale-zh-hant, thunderbird-locale-ca, thunderbird-locale-ta-lk, thunderbird-locale-bg, thunderbird-locale-ko, thunderbird-locale-hu, thunderbird-locale-pt, thunderbird-locale-dsb, thunderbird-locale-es-ar, thunderbird-locale-eu, thunderbird-locale-sr, thunderbird-locale-gl, thunderbird-locale-uk, thunderbird-locale-el, thunderbird-locale-he, thunderbird-locale-pl, thunderbird-locale-pa, thunderbird, thunderbird-locale-ru, thunderbird-locale-bn, thunderbird-locale-ga, thunderbird-locale-fr, thunderbird-locale-id, thunderbird-locale-sq, thunderbird-locale-af, thunderbird-locale-lt, thunderbird-dev, thunderbird-locale-nn, xul-ext-calendar-timezones, thunderbird-locale-ro, thunderbird-locale-de, thunderbird-locale-ar, thunderbird-locale-vi, thunderbird-locale-da, thunderbird-locale-is, thunderbird-locale-ja, xul-ext-gdata-provider, thunderbird-locale-en, thunderbird-locale-ast, thunderbird-locale-tr, thunderbird-locale-kk, thunderbird-locale-zh-cn, thunderbird-locale-ms, thunderbird-locale-pa-in, thunderbird-locale-ta, thunderbird-locale-cy, thunderbird-locale-sv-se, thunderbird-locale-kab, thunderbird-globalmenu, thunderbird-locale-it, thunderbird-mozsymbols, thunderbird-locale-cs, thunderbird-locale-mk, thunderbird-locale-en-us, thunderbird-locale-es, xul-ext-lightning, thunderbird-locale-ka, thunderbird-locale-rm, thunderbird-locale-br, thunderbird-locale-nb-no, thunderbird-locale-zh-hans, thunderbird-gnome-support, thunderbird-locale-bn-bd, thunderbird-locale-be, thunderbird-locale-sv, thunderbird-locale-es-es, thunderbird-locale-hy, thunderbird-locale-en-gb, thunderbird-locale-fy-nl, thunderbird-locale-gd, thunderbird-locale-fi, thunderbird-locale-pt-pt, thunderbird-locale-nb, thunderbird-locale-et, thunderbird-locale-zh-tw, thunderbird-locale-sl, thunderbird-locale-hr, thunderbird-locale-hsb, thunderbird-locale-si, thunderbird-locale-nl, thunderbird-locale-pt-br, thunderbird-locale-nn-no, thunderbird-locale-sk, thunderbird-locale-ga-ie, thunderbird-locale-fy