Vulnerability in Mozilla Firefox
CVE-2017-5455
The internal feed reader APIs that crossed the sandbox barrier allowed for a sandbox escape and escalation of privilege if combined with another vulnerability that resulted in remote code execution inside the sandboxed process. This vulnerability affects Firefox ESR < 52.1 and Firefox < 53.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.035 (88.8th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 89th percentile — 88.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.035 · newest: 0.035 · change: 0.000
Affected products
- Mozilla Firefox — versions unspecified
- Mozilla Firefox Esr — versions unspecified
- Red Hat Enterprise Linux — versions 7.0
- Red Hat Enterprise Linux Desktop — versions 7.0
- Red Hat Enterprise Linux Server — versions 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 7.0
References
- bugzilla.mozilla.org/show_bug.cgi (Exploit, Patch, Issue Tracking, Vendor Advisory)
- access.redhat.com/errata/RHSA-2017:1106 (vendor-advisory, Third Party Advisory)
- www.mozilla.org/security/advisories/mfsa2017-12/ (Vendor Advisory)
- www.mozilla.org/security/advisories/mfsa2017-10/ (Vendor Advisory)
- www.securityfocus.com/bid/97940 (VDB Entry, Third Party Advisory, vdb-entry)
- www.securitytracker.com/id/1038320 (VDB Entry, Third Party Advisory, vdb-entry)
Frequently asked questions
- What is CVE-2017-5455?
- CVE-2017-5455 is a high-severity vulnerability in Mozilla Firefox. CVSS score: 7.5/10. Published 2018-06-11.
- How severe is CVE-2017-5455?
- High severity. CVSS v3 base score is 7.5 out of 10.