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.
References
| Link | Resource |
|---|---|
| https://bugzilla.mozilla.org/show_bug.cgi?id=1584216 | Issue Tracking Permissions Required |
| https://security.gentoo.org/glsa/202003-10 | Third Party Advisory |
| https://usn.ubuntu.com/4335-1/ | Third Party Advisory |
| https://www.mozilla.org/security/advisories/mfsa2019-33/ | Vendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2019-34/ | Vendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2019-35/ | Vendor Advisory |
Configurations
History
03 Feb 2023, 17:27
| Type | Values Removed | Values Added |
|---|---|---|
| CPE | cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:* | |
| First Time |
Canonical
Canonical ubuntu Linux |
|
| References | (CONFIRM) https://bugzilla.mozilla.org/show_bug.cgi?id=1584216 - Issue Tracking, Permissions Required | |
| References | (UBUNTU) https://usn.ubuntu.com/4335-1/ - Third Party Advisory | |
| References | (GENTOO) https://security.gentoo.org/glsa/202003-10 - Third Party Advisory |
Information
Published : 2020-01-08 20:15
Updated : 2023-12-10 13:13
NVD link : CVE-2019-11763
Mitre link : CVE-2019-11763
CVE.ORG link : CVE-2019-11763
JSON object : View
Products Affected
mozilla
- thunderbird
- firefox
- firefox_esr
canonical
- ubuntu_linux
CWE
CWE-79
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')