RCE in Mozilla Firefox
CVE-2017-7798
The Developer Tools feature suffers from a XUL injection vulnerability due to improper sanitization of the web page source code. In the worst case, this could allow arbitrary code execution when opening a malicious page with the style editor tool. This vulnerability affects Firefox ESR < 52.3 and Firefox < 55.
Vulnerability class: RCE (Remote Code Execution)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.021 (81.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 81st percentile — 81.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.021 · newest: 0.021 · change: +0.000
Affected products
- Mozilla Firefox — versions unspecified
- Mozilla Firefox Esr — versions unspecified
- Debian Linux — versions 8.0, 9.0
- Red Hat Enterprise Linux — versions 6.0, 7.0
- Red Hat Enterprise Linux Desktop — versions 6.0, 7.0
- Red Hat Enterprise Linux Server — versions 6.0, 7.0
- Red Hat Enterprise Linux Server Aus — versions 7.3, 7.4
- Red Hat Enterprise Linux Server Eus — versions 7.3, 7.4, 7.5
- Red Hat Enterprise Linux Workstation — versions 6.0, 7.0
Weakness classification (CWE)
References
- www.mozilla.org/security/advisories/mfsa2017-19/ (Vendor Advisory)
- www.securityfocus.com/bid/100198 (VDB Entry, Third Party Advisory, vdb-entry)
- www.mozilla.org/security/advisories/mfsa2017-18/ (Vendor Advisory)
- access.redhat.com/errata/RHSA-2017:2456 (vendor-advisory, Third Party Advisory)
- bugzilla.mozilla.org/buglist.cgi (Issue Tracking, Vendor Advisory)
- www.securitytracker.com/id/1039124 (VDB Entry, Third Party Advisory, vdb-entry)
- www.debian.org/security/2017/dsa-3928 (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2017-7798?
- CVE-2017-7798 is a high-severity vulnerability in Mozilla Firefox, classified under Code Injection. CVSS score: 8.8/10. Published 2018-06-11.
- How severe is CVE-2017-7798?
- High severity. CVSS v3 base score is 8.8 out of 10.