A type confusion issue was addressed with improved state handling.
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Listed in CISA KEV
- How many real-world setups can hit the bug, from the vendor's advisory and CISA data. It does not know your setup.What do these mean? →
- Actively exploited
- Fix
- Fixed in 16.2, 13.1, 15.7, 16.1
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
This vulnerability affects Apple's Safari web browser and several of its operating systems, including tvOS, macOS, iOS, and iPadOS. A specially crafted web page could allow an attacker to run arbitrary code on the affected device.
Summarized by anthropic/claude-haiku-5.5. Verify details against the original sources.
Read the original 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..
Timeline
- Added to CISA KEV
CISA has evidence of exploitation in the wild
- CVE published
- CISA remediation deadline
Due date for US federal agencies to patch
- Record last updated
Affected versions
- Apple tvOS
From unspecified · fixed in 16.2
- Apple tvOS
From unspecified · fixed in 13.1
- Apple tvOS
From unspecified · fixed in 15.7
- Apple tvOS
From unspecified · fixed in 16.1
- Apple tvOS
From unspecified · fixed in 16.2
References 12
seclists.org
openwall.com
security.gentoo.org
Questions about CVE-2022-42856
What does this mean?
The bug is a type confusion issue, which Apple addressed with improved state handling. Apple says processing maliciously crafted web content may lead to arbitrary code execution.Source: support.apple.com
Am I affected, and how do I check?
The listed tvOS fixed versions are 13.1, 15.7, 16.1, and 16.2, and the introduced version is unspecified. To check a device, compare its tvOS version under Settings > General > About.Source: support.apple.com
What should I do about it?
Install the fixed tvOS release for the release line in use: 13.1, 15.7, 16.1, or 16.2. The advisory text references iOS 15.7.2 and iPadOS 15.7.2 as its fix versions.Source: support.apple.com
Is it being exploited?
Yes. CISA added it to its Known Exploited Vulnerabilities catalog on 2022-12-14, which means it has evidence of attacks. No public exploit code is tracked.Source: cisa.gov, cve.now feed data