Use After Free in Apple Iphone OS
CVE-2017-2491
Use after free vulnerability in the String.replace method JavaScriptCore in Apple Safari in iOS before 10.3 allows remote attackers to execute arbitrary code via a crafted web page, or a crafted file.
Vulnerability class: Use-After-Free
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: 0.080 (94.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 95th percentile — 94.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.080 · newest: 0.080 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- support.apple.com/en-us/HT207617 (Vendor Advisory)
- www.exploit-db.com/exploits/41964/ (exploit)
- www.zerodayinitiative.com/advisories/ZDI-17-321 (VDB Entry, Third Party Advisory)
- www.securityfocus.com/bid/98316 (VDB Entry, Third Party Advisory, vdb-entry)
Frequently asked questions
- What is CVE-2017-2491?
- CVE-2017-2491 is a high-severity vulnerability in Apple Iphone OS, classified under Use After Free. CVSS score: 8.8/10. Published 2017-06-27.
- How severe is CVE-2017-2491?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2017-2491 known to be exploited?
- 10 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.