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
EPSS: 0.080 (94.2th percentile) — read the EPSS interpretation.
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.
Affected products
- Apple Iphone_os
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- product-security@apple.com (x_refsource_CONFIRM, Vendor Advisory)
- product-security@apple.com (exploit, x_refsource_EXPLOIT-DB)
- product-security@apple.com (VDB Entry, Third Party Advisory, x_refsource_MISC)
- product-security@apple.com (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
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.