CVE-2016-4657 on CISA KEV

WebKit in Apple iOS before 9.3.5 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site.

01What CISA says about this vulnerability

WebKit in Apple iOS before 9.3.5 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site.

02Required action — verbatim from CISA

Apply updates per vendor instructions.

03Notes & references

• blog.lookout.com — https://blog.lookout.com/blog/2016/08/25/trident-pegasus/
• www.youtube.com — https://www.youtube.com/watch?v=xkdPjbaLngE
• www.exploit-db.com — https://www.exploit-db.com/exploits/44836/
• www.securityfocus.com — http://www.securityfocus.com/bid/92653
• support.apple.com — https://support.apple.com/HT207107
• lists.apple.com — http://lists.apple.com/archives/security-announce/2016/Aug/msg00000.html
• www.securitytracker.com — http://www.securitytracker.com/id/1036694

04SARA's analyst layer — why this matters

This vulnerability is currently on the CISA KEV list, which CISA only adds CVEs to when there is reliable evidence of active exploitation in the wild. For federal civilian agencies, BOD 22-01 requires remediation by the due date above. For everyone else, KEV is the strongest "patch immediately" signal you can get from public threat intel.

05Affected products (summary)

Vendor	Product	Versions
n	a / n/a	n/a

06Detection

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