CVE-2021-30952: Apple Multiple Products Integer Overflow or Wraparound Vulnerability

CISA Known Exploited Vulnerability (KEV)

Description

Apple tvOS, macOS, Safari, iPadOS and watchOS contain an integer overflow or wraparound vulnerability due to the processing of maliciously crafted web content that may lead to arbitrary code execution.

Required action (CISA)

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Notes

https://support.apple.com/en-us/HT212975 ; https://support.apple.com/en-us/HT212976 ; https://support.apple.com/en-us/HT212978 ; https://support.apple.com/en-us/HT212980 ; https://support.apple.com/en-us/HT212982 ; https://nvd.nist.gov/vuln/detail/CVE-2021-30952

Weakness behind it

CISA records this vulnerability as an instance of CWE-190. From there the chain continues into CAPEC attack patterns and ATT&CK techniques, all inside this corpus.

References

• NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-30952
• KEV catalog: https://www.cisa.gov/known-exploited-vulnerabilities-catalog