CVE-2022-42856
Apple iOS: Type Confusion
As of , CVE-2022-42856 in Apple iOS is on CISA's list of exploited vulnerabilities: CISA listed it on . Our patch-first group: Patch soon.
- Exploited
- Yes: CISA listed it on 14 December 2022
- US federal deadline
- 4 January 202321 days after CISA listed it. US federal civilian agencies must fix it by then.
- Used in ransomware campaigns
- Not known to CISA
- EPSS score
- 0.09Higher than 94% of the CVEs EPSS scores. EPSS estimates the chance of exploitation activity in the next 30 days.
- EPSS when listed
- No score that dayThe EPSS file of the day CISA listed it has no score for it.
- Public exploit
- None foundNeither Metasploit nor Exploit-DB lists one.
- Fix
- Vendor advice: support.apple.comLinks below, from CISA's entry.
What CISA says to do
Apply updates per vendor instructions.
CISA's required action
What the flaw is
Apple iOS contains a type confusion vulnerability when processing maliciously crafted web content leading to code execution.
CISA's 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..
The CVE record's description, from apple
- CVE published
- 15 December 2022
- Assigned by
- apple
- CVSS
- 8.8 High (CVSS 3.1, from CISA-ADP)
- CWE-843
- Access of Resource Using Incompatible Type ('Type Confusion')
- CISA SSVC, exploitation
- active
- CISA SSVC, automatable
- no
- CISA SSVC, technical impact
- total
Timeline
- CISA added it to its list of exploited vulnerabilities.
- The CVE record was published.
- The US federal deadline to fix it.
iOS: other exploited entries
| Vulnerability | Product | Our group | Listed | Deadline | EPSS |
|---|---|---|---|---|---|
| CVE-2016-4657Webkit Memory Corruption | Apple iOS | Patch this weekMetasploit module; EPSS 0.67; verified Exploit-DB entry | 0.67 | ||
| CVE-2016-4655Information Disclosure | Apple iOS | Patch this weekMetasploit module; verified Exploit-DB entry | 0.33 | ||
| CVE-2016-4656Memory Corruption | Apple iOS | Patch this weekMetasploit module; verified Exploit-DB entry | 0.24 | ||
| CVE-2021-30761WebKit Memory Corruption | Apple iOS | Patch soon | 0.11 | ||
| CVE-2021-30762WebKit Use-After-Free | Apple iOS | Patch soon | 0.11 | ||
| CVE-2019-7287Memory Corruption | Apple iOS | Patch soon | 0.05 | ||
| CVE-2021-30666WebKit Buffer Overflow | Apple iOS | Patch soon | 0.03 |
Read further
- CVE recordcve.org
- NVD entrynvd.nist.gov
- CISA's catalogcisa.gov
- EPSS for this CVEapi.first.org