Use After Free in Mozilla Firefox
CVE-2019-11713
A use-after-free vulnerability can occur in HTTP/2 when a cached HTTP/2 stream is closed while still in use, resulting in a potentially exploitable crash. This vulnerability affects Firefox ESR < 60.8, Firefox < 68, and Thunderbird < 60.8.
Vulnerability class: Use-After-Free
EPSS: 0.021 (80.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Mozilla Firefox — versions unspecified
- Mozilla Firefox Esr — versions unspecified
- Mozilla Thunderbird — versions unspecified
Weakness classification (CWE)
References
- security@mozilla.org (x_refsource_MISC, Vendor Advisory)
- security@mozilla.org (x_refsource_MISC, Vendor Advisory)
- security@mozilla.org (x_refsource_MISC, Vendor Advisory)
- security@mozilla.org (Permissions Required, x_refsource_MISC, Issue Tracking, Vendor Advisory)
- security@mozilla.org (vendor-advisory, x_refsource_SUSE)
- security@mozilla.org (vendor-advisory, x_refsource_SUSE)
- security@mozilla.org (mailing-list, x_refsource_MLIST)
- security@mozilla.org (mailing-list, x_refsource_MLIST)
- security@mozilla.org (vendor-advisory, x_refsource_GENTOO)
- security@mozilla.org (vendor-advisory, x_refsource_GENTOO)
Frequently asked questions
- What is CVE-2019-11713?
- CVE-2019-11713 is a critical-severity vulnerability in Mozilla Firefox, classified under Use After Free. CVSS score: 9.8/10. Published 2019-07-23.
- How severe is CVE-2019-11713?
- Critical severity. CVSS v3 base score is 9.8 out of 10.