Improper input validation in Mozilla Firefox
CVE-2017-7814
File downloads encoded with "blob:" and "data:" URL elements bypassed normal file download checks though the Phishing and Malware Protection feature and its block lists of suspicious sites and files. This would allow malicious sites to lure users into downloading executables that would otherwise be detected as suspicious. This vulnerability affects Firefox < 56, Firefox ESR < 52.4, and Thunderbird < 52.4.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.012 (67.5th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 67th percentile — 67.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.012 · newest: 0.012 · change: 0.000
Affected products
- Mozilla Firefox — versions unspecified
- Mozilla Firefox Esr — versions unspecified
- Mozilla Thunderbird — versions unspecified
- Debian Linux — versions 7.0, 8.0, 9.0
- 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 7.4
- Red Hat Enterprise Linux Server Eus — versions 7.4, 7.5
- Red Hat Enterprise Linux Workstation — versions 6.0, 7.0
Weakness classification (CWE)
References
- www.securityfocus.com/bid/101059 (VDB Entry, Third Party Advisory, vdb-entry)
- lists.debian.org/debian-lts-announce/2017/11/msg00000.html (mailing-list, Third Party Advisory)
- www.mozilla.org/security/advisories/mfsa2017-22/ (Vendor Advisory)
- www.securitytracker.com/id/1039465 (VDB Entry, Third Party Advisory, vdb-entry)
- access.redhat.com/errata/RHSA-2017:2831 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2017:2885 (vendor-advisory, Third Party Advisory)
- www.mozilla.org/security/advisories/mfsa2017-21/ (Vendor Advisory)
- bugzilla.mozilla.org/show_bug.cgi (Patch, Third Party Advisory, Issue Tracking)
- www.debian.org/security/2017/dsa-4014 (vendor-advisory, Third Party Advisory)
- www.mozilla.org/security/advisories/mfsa2017-23/ (Vendor Advisory)
Frequently asked questions
- What is CVE-2017-7814?
- CVE-2017-7814 is a high-severity vulnerability in Mozilla Firefox, classified under Improper Input Validation. CVSS score: 7.8/10. Published 2018-06-11.
- How severe is CVE-2017-7814?
- High severity. CVSS v3 base score is 7.8 out of 10.