An integer overflow during the parsing of XML using the Expat library. This vulnerability affects Firefox < 50.
Fix
Patch, vendor advisory and mitigation references on NVD 4
- https://bugzilla.mozilla.org/show_bug.cgi?id=1274777 Issue Tracking, Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2016-89/ Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1274777 Issue Tracking, Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2016-89/ Vendor Advisory
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 9.8 · mozilla, debian, pythonNVD modified 2026-10-08 21:17
Affected (CPE criteria) 5
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*cpe:2.3:a:python:python:*:*:*:*:*:*:*:*
References 12
- http://www.securityfocus.com/bid/94337 Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1037298 Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1039427 Third Party Advisory, VDB Entry
- https://bugzilla.mozilla.org/show_bug.cgi?id=1274777 Issue Tracking, Vendor Advisory
- https://www.debian.org/security/2017/dsa-3898 Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2016-89/ Vendor Advisory
- http://www.securityfocus.com/bid/94337 Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1037298 Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1039427 Third Party Advisory, VDB Entry
- https://bugzilla.mozilla.org/show_bug.cgi?id=1274777 Issue Tracking, Vendor Advisory
- https://www.debian.org/security/2017/dsa-3898 Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2016-89/ Vendor Advisory