Mozilla Firefox
At a glance
- Source
- NVD
- EPSS
- EPSS 1.15 % · percentile 67 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- mozilla
- NVD status
- Modified
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.
Weaknesses (CWE)
- CWE-79 — Improper Neutralization of Input During Web Page Generation
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | MEDIUM 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N | NVD · nvd@nist.gov (Primary) |
| CVSS 2.0 | MEDIUM 4.3 | AV:N/AC:M/Au:N/C:N/I:P/A:N | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2019-3433
- GCVE · GCVE-0-2019-11763
CERT-FR advisories
- CERTFR-2019-AVI-535 — Multiples vulnérabilités dans Mozilla Thunderbird · cert.ssi.gouv.fr
- CERTFR-2019-AVI-532 — Multiples vulnérabilités dans Mozilla Firefox · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*< 70.0cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*< 68.2cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*< 68.2cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*
Affected products
| Product | Versions |
|---|---|
| Mozilla · Firefox | affected before 70 |
| Mozilla · Thunderbird | affected before 68.2 |
| Mozilla · Firefox ESR | affected before 68.2 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |