Buffer overflow in Mozilla Firefox
CVE-2017-5375
JIT code allocation can allow for a bypass of ASLR and DEP protections leading to potential memory corruption attacks. This vulnerability affects Thunderbird < 45.7, Firefox ESR < 45.7, and Firefox < 51.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.338 (98.3th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 98th percentile — 98.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.338 · newest: 0.338 · change: 0.000
Affected products
- Mozilla Firefox — versions unspecified
- Mozilla Firefox Esr — versions unspecified
- Mozilla Thunderbird — versions unspecified
- Debian Linux — versions 8.0
- Red Hat Enterprise Linux Desktop — versions 5.0, 6.0, 7.0
- Red Hat Enterprise Linux Server — versions 5.0, 6.0, 7.0
- Red Hat Enterprise Linux Workstation — versions 5.0, 6.0, 7.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.mozilla.org/security/advisories/mfsa2017-03/ (Vendor Advisory)
- www.mozilla.org/security/advisories/mfsa2017-02/ (Vendor Advisory)
- security.gentoo.org/glsa/201702-22 (vendor-advisory, Third Party Advisory)
- www.exploit-db.com/exploits/42327/ (Exploit, VDB Entry, Third Party Advisory, exploit)
- www.debian.org/security/2017/dsa-3832 (vendor-advisory, Third Party Advisory)
- www.exploit-db.com/exploits/44293/ (Exploit, VDB Entry, Third Party Advisory, exploit)
- security.gentoo.org/glsa/201702-13 (vendor-advisory, Third Party Advisory)
- www.debian.org/security/2017/dsa-3771 (vendor-advisory, Third Party Advisory)
- www.exploit-db.com/exploits/44294/ (Exploit, VDB Entry, Third Party Advisory, exploit)
- www.securitytracker.com/id/1037693 (VDB Entry, Third Party Advisory, vdb-entry)
Frequently asked questions
- What is CVE-2017-5375?
- CVE-2017-5375 is a critical-severity vulnerability in Mozilla Firefox, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 9.8/10. Published 2018-06-11.
- How severe is CVE-2017-5375?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2017-5375 known to be exploited?
- 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.