NetSight
IP …
critical9.8

CVE-2018-18500

A use-after-free vulnerability can occur while parsing an HTML5 stream in concert with custom HTML elements.

Impact

A use-after-free vulnerability can occur while parsing an HTML5 stream in concert with custom HTML elements. This results in the stream parser object being freed while still in use, leading to a potentially exploitable crash. This vulnerability affects Thunderbird < 60.5, Firefox ESR < 60.5, and Firefox < 65.

Affected products

VendorProductAffected versions
MozillaFirefox
before 65.0
MozillaFirefox Esr
before 60.5
MozillaThunderbird
before 60.5
CanonicalUbuntu Linux
Versions 14.04, 16.04, 18.04, 18.10
DebianDebian Linux
Versions 8.0, 9.0
RedhatEnterprise Linux Desktop
Versions 6.0, 7.0
RedhatEnterprise Linux Server
Versions 6.0, 7.0
RedhatEnterprise Linux Server Aus
Version 7.6
RedhatEnterprise Linux Server Eus
Version 7.6
RedhatEnterprise Linux Server Tus
Version 7.6
RedhatEnterprise Linux Workstation
Versions 6.0, 7.0

Weakness classification

CWE-416

References