CVE-2019-9811

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.

• CWE-74

• http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00055.htmlThird Party Advisory
• http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00058.htmlThird Party Advisory
• http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00073.htmlThird Party Advisory
• http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00011.htmlThird Party Advisory
• http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00017.htmlThird Party Advisory
• https://bugzilla.mozilla.org/show_bug.cgi?id=1538007Issue Tracking, Permissions Required
• https://bugzilla.mozilla.org/show_bug.cgi?id=1539598Exploit, Issue Tracking, Patch, Vendor Advisory
• https://bugzilla.mozilla.org/show_bug.cgi?id=1563327Exploit, Issue Tracking, Vendor Advisory
• https://lists.debian.org/debian-lts-announce/2019/08/msg00001.htmlMailing List, Third Party Advisory
• https://lists.debian.org/debian-lts-announce/2019/08/msg00002.htmlMailing List, Third Party Advisory
• https://security.gentoo.org/glsa/201908-12Third Party Advisory
• https://security.gentoo.org/glsa/201908-20Third Party Advisory
• https://www.mozilla.org/security/advisories/mfsa2019-21/Vendor Advisory
• https://www.mozilla.org/security/advisories/mfsa2019-22/Vendor Advisory
• https://www.mozilla.org/security/advisories/mfsa2019-23/Vendor Advisory
• http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00055.htmlThird Party Advisory
• http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00058.htmlThird Party Advisory
• http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00073.htmlThird Party Advisory
• http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00011.htmlThird Party Advisory
• http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00017.htmlThird Party Advisory
• https://bugzilla.mozilla.org/show_bug.cgi?id=1538007Issue Tracking, Permissions Required
• https://bugzilla.mozilla.org/show_bug.cgi?id=1539598Exploit, Issue Tracking, Patch, Vendor Advisory
• https://bugzilla.mozilla.org/show_bug.cgi?id=1563327Exploit, Issue Tracking, Vendor Advisory
• https://lists.debian.org/debian-lts-announce/2019/08/msg00001.htmlMailing List, Third Party Advisory
• https://lists.debian.org/debian-lts-announce/2019/08/msg00002.htmlMailing List, Third Party Advisory
• https://security.gentoo.org/glsa/201908-12Third Party Advisory
• https://security.gentoo.org/glsa/201908-20Third Party Advisory
• https://www.mozilla.org/security/advisories/mfsa2019-21/Vendor Advisory
• https://www.mozilla.org/security/advisories/mfsa2019-22/Vendor Advisory
• https://www.mozilla.org/security/advisories/mfsa2019-23/Vendor Advisory

Published

Jul 23, 2019

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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• CVE-2019-9812Given a compromised sandboxed content process due to a separ…9.3
• CVE-2019-9813Incorrect handling of __proto__ mutations may lead to type c…
• CVE-2019-9814Mozilla developers and community members reported memory saf…
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• CVE-2019-9816A possible vulnerability exists where type confusion can occ…
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