CVE-2022-22674 is a vulnerability in Apple macOS
Published on May 26, 2022
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 Monterey 12.3.1, Security Update 2022-004 Catalina, macOS Big Sur 11.6.6. A local user may be able to read kernel memory.
Known Exploited Vulnerability
This Apple macOS Out-of-Bounds Read Vulnerability is part of CISA's list of Known Exploited Vulnerabilities. macOS Monterey contains an out-of-bounds read vulnerability that could allow an application to read kernel memory.
The following remediation steps are recommended / required by April 25, 2022: Apply updates per vendor instructions.
Vulnerability Analysis
CVE-2022-22674 is exploitable with local system access, and requires small amount of user privileges. This vulnerability is considered to have a low attack complexity. This vulnerability is known to be actively exploited by threat actors. The potential impact of an exploit of this vulnerability is considered to have a high impact on confidentiality, with no impact on integrity and availability.
Weakness Type
Out-of-bounds Read
The software reads data past the end, or before the beginning, of the intended buffer. Typically, this can allow attackers to read sensitive information from other memory locations or cause a crash. A crash can occur when the code reads a variable amount of data and assumes that a sentinel exists to stop the read operation, such as a NUL in a string. The expected sentinel might not be located in the out-of-bounds memory, causing excessive data to be read, leading to a segmentation fault or a buffer overflow. The software may modify an index or perform pointer arithmetic that references a memory location that is outside of the boundaries of the buffer. A subsequent read operation then produces undefined or unexpected results.
Products Associated with CVE-2022-22674
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Affected Versions
Apple macOS:- Version unspecified and below 12.3 is affected.
- Version unspecified and below 2022 is affected.
- Version unspecified and below 11.6 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.