CVE-2019-11713

Critical

Description

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.

SeverityCritical

CVSS9.8

Exploit probability—

Product

Mozilla Firefox

PublishedJul 23, 2019

First seenJul 23, 2019

How to fix

Update

mozilla firefox60.8.0, 68.0 or later
mozilla thunderbird60.8.0 or later

Vendor advisories

security.gentoo.org/glsa/201908-12
security.gentoo.org/glsa/201908-20

Affected products

Product	Affected versions	Fixed in
mozilla firefox	v < 60.8.0, v < 68.0	60.8.0, 68.0
mozilla thunderbird	v < 60.8.0	60.8.0

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