Vulnerability · Published Apr 2, 2021 · Assigned by apple
CVE-2021-1791
Medium 5.5
In plain English
A medium-severity security flaw in iOS and iPadOS from Apple. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.2% (higher than 68% of all known vulnerabilities).
Severity (CVSS NVD)5.5Medium
Exploit odds (30 days)1.2%top 31.6% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
An out-of-bounds read issue existed that led to the disclosure of kernel memory. This was addressed with improved input validation. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, watchOS 7.3, tvOS 14.4, iOS 14.4 and iPadOS 14.4. A malicious application may be able to disclose kernel memory.
Affected products (as reported)
References
- https://support.apple.com/en-us/HT212147 x_refsource_MISC
- https://support.apple.com/en-us/HT212146 x_refsource_MISC
- https://support.apple.com/en-us/HT212148 x_refsource_MISC
- https://support.apple.com/en-us/HT212149 x_refsource_MISC