CVE-2019-9811
First published: Tue Jul 09 2019(Updated: )
As part of a winning Pwn2Own entry, a researcher demonstrated a sandbox escape by installing a malicious language pack and then opening a browser feature that used the compromised translation. This vulnerability affects Firefox ESR < 60.8, Firefox < 68, and Thunderbird < 60.8.
Credit: security@mozilla.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Mozilla Firefox | <68 | 68 |
| Mozilla Firefox ESR | <60.8 | 60.8 |
| Mozilla Thunderbird | <60.8 | 60.8 |
| Mozilla Firefox | <68.0 | |
| Mozilla Firefox ESR | <60.8 | |
| Mozilla Thunderbird | <60.8 | |
| Debian Debian Linux | =8.0 | |
| Novell Suse Package Hub For Suse Linux Enterprise | =12 | |
| openSUSE Leap | =15.0 | |
| openSUSE Leap | =15.1 |
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Reference Links
- https://bugzilla.mozilla.org/show_bug.cgi?id=1538007
- https://bugzilla.mozilla.org/show_bug.cgi?id=1539598
- https://bugzilla.mozilla.org/show_bug.cgi?id=1539759
- https://bugzilla.mozilla.org/show_bug.cgi?id=1523741
- https://bugzilla.mozilla.org/show_bug.cgi?id=1563327
- https://www.mozilla.org/en-US/security/advisories/mfsa2019-21/
- https://www.mozilla.org/en-US/security/advisories/mfsa2019-21/#CVE-2019-11727
- https://www.mozilla.org/en-US/security/advisories/mfsa2019-22/
- https://www.mozilla.org/en-US/security/advisories/mfsa2019-23/
- http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00055.html
- http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00058.html
- http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00073.html
- http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00011.html
- http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00017.html
- https://lists.debian.org/debian-lts-announce/2019/08/msg00001.html
- https://lists.debian.org/debian-lts-announce/2019/08/msg00002.html
- https://security.gentoo.org/glsa/201908-12
- https://security.gentoo.org/glsa/201908-20
- https://www.mozilla.org/security/advisories/mfsa2019-21/
- https://www.mozilla.org/security/advisories/mfsa2019-22/
- https://www.mozilla.org/security/advisories/mfsa2019-23/
Peer vulnerabilities
(Found alongside the following vulnerabilities)
Frequently Asked Questions
What is CVE-2019-9811?
CVE-2019-9811 is a vulnerability that allows a sandbox escape in Firefox ESR < 60.8, Firefox < 68, and Thunderbird < 60.8.
How can this vulnerability be exploited?
This vulnerability can be exploited by installing a malicious language pack and then opening a browser feature that uses the compromised translation.
Which software versions are affected by CVE-2019-9811?
Firefox ESR versions prior to 60.8, Firefox versions prior to 68, and Thunderbird versions prior to 60.8 are affected.
What is the severity of CVE-2019-9811?
CVE-2019-9811 has a severity rating of 8.3 (high).
Is there a fix available for CVE-2019-9811?
Yes, updating to Firefox ESR 60.8 or later, Firefox 68 or later, or Thunderbird 60.8 or later will fix the vulnerability.
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