OWB Write in Safari WebKit <15.6.1: Arbitrary Code Exec
CVE-2022-32893 Published on August 24, 2022
An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 15.6.1 and iPadOS 15.6.1, macOS Monterey 12.5.1, Safari 15.6.1. 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.
Known Exploited Vulnerability
This Apple iOS and macOS Out-of-Bounds Write Vulnerability is part of CISA's list of Known Exploited Vulnerabilities. Apple iOS and macOS contain an out-of-bounds write vulnerability that could allow for remote code execution when processing malicious crafted web content.
The following remediation steps are recommended / required by September 8, 2022: Apply updates per vendor instructions.
Vulnerability Analysis
CVE-2022-32893 can be exploited with network access, requires user interaction. 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 be very high.
Weakness Type
What is a Memory Corruption Vulnerability?
The software writes data past the end, or before the beginning, of the intended buffer. Typically, this can result in corruption of data, a crash, or code execution. 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 write operation then produces undefined or unexpected results.
CVE-2022-32893 has been classified to as a Memory Corruption vulnerability or weakness.
Products Associated with CVE-2022-32893
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Affected Versions
Apple Safari:- Version unspecified and below 15.6 is affected.
- Version unspecified and below 15.6 is affected.
- Version unspecified and below 12.5 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.