CVE-2019-11763

Name

CVE-2019-11763

Description

Failure to correctly handle null bytes when processing HTML entities resulted in Firefox incorrectly parsing these entities. This could have led to HTML comment text being treated as HTML which could have led to XSS in a web application under certain conditions. It could have also led to HTML entities being masked from filters - enabling the use of entities to mask the actual characters of interest from filters. This vulnerability affects Firefox < 70, Thunderbird < 68.2, and Firefox ESR < 68.2.

NVD Severity

medium

Other trackers

CVE, NVD, CERT, CVE Details, CIRCL, Arch Linux, Debian, Red Hat, Ubuntu, Gentoo, SUSE (Bugzilla), SUSE (CVE), Mageia

Mailing lists

oss-security, full-disclosure, bugtraq

Exploits

Exploit DB, Metasploit

Forges

GitHub (code, issues), Aports (code, issues)

Type	URI
Vendor Advisory	https://www.mozilla.org/security/advisories/mfsa2019-35/
Permissions Required	https://bugzilla.mozilla.org/show_bug.cgi?id=1584216
Vendor Advisory	https://www.mozilla.org/security/advisories/mfsa2019-34/
Vendor Advisory	https://www.mozilla.org/security/advisories/mfsa2019-33/
GENTOO	https://security.gentoo.org/glsa/202003-10
UBUNTU	https://usn.ubuntu.com/4335-1/

CPE URI	Source package	Min version	Max version
`cpe:2.3:a:mozilla:firefox::::::::`	firefox	>= None	< 70.0
`cpe:2.3:a:mozilla:firefox_esr::::::::`	firefox_esr	>= None	< 68.2
`cpe:2.3:a:mozilla:thunderbird::::::::`	thunderbird	>= None	< 68.2

References

Match rules

Vulnerable and fixed packages