Apple iOS Type Confusion Vulnerability

[ Why it matters ]Priority signals

• Exploited in the wild: on CISA's Known Exploited Vulnerabilities list since 2022-12-14

[ Description ]Official description

A type confusion issue was addressed with improved state handling. This issue is fixed in Safari 16.2, tvOS 16.2, macOS Ventura 13.1, iOS 15.7.2 and iPadOS 15.7.2, iOS 16.1.2. Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited against versions of iOS released before iOS 15.1..

CISA: Apple iOS contains a type confusion vulnerability when processing maliciously crafted web content leading to code execution.

[ Fixes ]Fixes and patches

CISA required action (US federal deadline 4 Jan 2023): Apply updates per vendor instructions.

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ References ]References

• seclists.org/fulldisclosure/2022/Dec/21Mailing ListThird Party Advisory
• seclists.org/fulldisclosure/2022/Dec/22Mailing ListThird Party Advisory
• seclists.org/fulldisclosure/2022/Dec/23Mailing ListThird Party Advisory
• seclists.org/fulldisclosure/2022/Dec/26Mailing ListThird Party Advisory
• seclists.org/fulldisclosure/2022/Dec/28Mailing ListThird Party Advisory
• www.openwall.com/lists/oss-security/2022/12/26/1Mailing ListThird Party Advisory
• security.gentoo.org/glsa/202305-32Third Party Advisory
• support.apple.com/en-us/HT213516Release NotesVendor Advisory
• support.apple.com/en-us/HT213531Release NotesVendor Advisory
• support.apple.com/en-us/HT213532Release NotesVendor Advisory
• support.apple.com/en-us/HT213535Release NotesVendor Advisory
• support.apple.com/en-us/HT213537Release NotesVendor Advisory
• www.cisa.gov/known-exploited-vulnerabilities-catalogUS Government Resource