Security Vulnerabilities - CVEs Published In August 2021
An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in macOS Monterey 12.0.1, Security Update 2021-007 Catalina, macOS Big Sur 11.6.1. Processing a maliciously crafted AppleScript binary may result in unexpected application termination or disclosure of process memory.
CVSS Score
7.1
EPSS Score
0.004
Published
2021-08-24
An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in macOS Monterey 12.0.1, Security Update 2021-007 Catalina, macOS Big Sur 11.6.1. Processing a maliciously crafted AppleScript binary may result in unexpected application termination or disclosure of process memory.
CVSS Score
7.1
EPSS Score
0.002
Published
2021-08-24
A validation issue existed in the handling of symlinks. This issue was addressed with improved validation of symlinks. This issue is fixed in Security Update 2021-005 Catalina, iOS 14.8 and iPadOS 14.8, iOS 15 and iPadOS 15, watchOS 8, macOS Big Sur 11.6. An application may be able to access restricted files.
CVSS Score
5.5
EPSS Score
0.002
Published
2021-08-24
This issue was addressed by adding a new Remote Login option for opting into Full Disk Access for Secure Shell sessions. This issue is fixed in macOS Big Sur 11.3. A malicious unsandboxed app on a system with Remote Login enabled may bypass Privacy preferences.
CVSS Score
9.1
EPSS Score
0.003
Published
2021-08-24
A race condition was addressed with improved locking. This issue is fixed in Security Update 2021-005 Catalina, iOS 14.8 and iPadOS 14.8, tvOS 15, iOS 15 and iPadOS 15, watchOS 8, macOS Big Sur 11.6. A malicious application may be able to execute arbitrary code with kernel privileges.
CVSS Score
7.0
EPSS Score
0.002
Published
2021-08-24
CVE-2021-30858
A use after free issue was addressed with improved memory management. This issue is fixed in iOS 14.8 and iPadOS 14.8, macOS Big Sur 11.6. 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
CVSS Score
8.8
EPSS Score
0.014
Published
2021-08-24
A type confusion issue was addressed with improved state handling. This issue is fixed in iOS 14.8 and iPadOS 14.8, macOS Big Sur 11.6, Security Update 2021-005 Catalina. A malicious application may be able to execute arbitrary code with kernel privileges.
CVSS Score
7.8
EPSS Score
0.003
Published
2021-08-24
CVE-2021-30860
An integer overflow was addressed with improved input validation. This issue is fixed in Security Update 2021-005 Catalina, iOS 14.8 and iPadOS 14.8, macOS Big Sur 11.6, watchOS 7.6.2. Processing a maliciously crafted PDF may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited.
Known exploited
CVSS Score
7.8
EPSS Score
0.669
Published
2021-08-24
A logic issue was addressed with improved state management. This issue is fixed in macOS Monterey 12.0.1. A malicious application may bypass Gatekeeper checks.
CVSS Score
5.5
EPSS Score
0.002
Published
2021-08-24
A validation issue was addressed with improved input sanitization. This issue is fixed in iTunes U 3.8.3. Processing a maliciously crafted URL may lead to arbitrary javascript code execution.
CVSS Score
6.1
EPSS Score
0.016
Published
2021-08-24