CVE-2020-9852: apple ios Integer Overflow or Wraparound

Vulnerability summary

CVE-2020-9852 is a high (CVSS 9.3) Integer Overflow or Wraparound vulnerability in apple ios. EPSS estimates a 1.31% chance of exploitation in the next 30 days, higher than 70.2% of scored vulnerabilities.

Timeline

1. 09-06-2020
   PublishedVulnerability first disclosed.
2. 04-08-2024
   Last modifiedVulnerability information updated.

Description

An integer overflow was addressed through improved input validation. This issue is fixed in iOS 13.5 and iPadOS 13.5, macOS Catalina 10.15.5, tvOS 13.4.5, watchOS 6.2.5. A malicious application may be able to execute arbitrary code with kernel privileges.

• CWE-190Integer Overflow or WraparoundThe product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.