Rewterz Threat Advisory – Multiple Apple iOS and iPadOS Vulnerabilities

Severity

High

Analysis Summary

CVE-2021-30686

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Apple macOS. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the USACBitstreamReader function in AudioCodecs. Crafted data in a LOAS file can trigger an overflow of a stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process.

CVE-2021-30685

This vulnerability allows remote attackers to disclose sensitive information on affected installations of Apple macOS. Interaction with the AudioToolboxCore library is required to exploit this vulnerability but attack vectors may vary depending on the implementation. The specific flaw exists within the AudioToolboxCore framework. Crafted data in a AAC file can trigger a read past the end of an allocated data structure. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the current process.

CVE-2021-1772

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Apple macOS. Interaction with the CoreText library is required to exploit this vulnerability but attack vectors may vary depending on the implementation. The specific flaw exists within the parsing of TTF fonts. A crafted TTF font can trigger an overflow of a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process.

CVE-2021-30691

This vulnerability allows remote attackers to disclose sensitive information on affected installations of Apple macOS. Interaction with the ModelIO library is required to exploit this vulnerability but attack vectors may vary depending on the implementation. The specific flaw exists within the ModelIO framework. Crafted data in a USD file can trigger a read past the end of an allocated data structure. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the current process.

CVE-2021-30692

This vulnerability allows remote attackers to disclose sensitive information on affected installations of Apple macOS. Interaction with the ModelIO library is required to exploit this vulnerability but attack vectors may vary depending on the implementation. The specific flaw exists within the ModelIO framework. Crafted data in a USD file can trigger a read past the end of an allocated data structure. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the current process.

CVE-2021-30749

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Apple WebKit. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the KeyframeEffect class. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker can leverage this vulnerability to execute code in the context of the current process.

CVE-2021-30694

This vulnerability allows remote attackers to disclose sensitive information on affected installations of Apple macOS. Interaction with the ModelIO library is required to exploit this vulnerability but attack vectors may vary depending on the implementation. The specific flaw exists within the ModelIO framework. Crafted data in a USD file can trigger a read past the end of an allocated data structure. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the current process.

CVE-2021-30693

This vulnerability allows remote attackers to disclose sensitive information on affected installations of Apple macOS. Interaction with the ModelIO library is required to exploit this vulnerability but attack vectors may vary depending on the implementation. The specific flaw exists within the ModelIO framework. Crafted data in a USD file can trigger a read past the end of an allocated data structure. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the current process.

CVE-2021-30695

This vulnerability allows remote attackers to disclose sensitive information on affected installations of Apple macOS. Interaction with the ModelIO library is required to exploit this vulnerability but attack vectors may vary depending on the implementation. The specific flaw exists within the ModelIO framework. Crafted data in a USD file can trigger a read past the end of an allocated data structure. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the current process.

CVE-2021-30709

This vulnerability allows remote attackers to disclose sensitive information on affected installations of Apple macOS. Interaction with the ModelIO library is required to exploit this vulnerability but attack vectors may vary depending on the implementation. The specific flaw exists within the ModelIO framework. Crafted data in a USD file can trigger a read past the end of an allocated data structure. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the current process.

CVE-2021-30708

This vulnerability allows remote attackers to disclose sensitive information on affected installations of Apple macOS. Interaction with the ModelIO library is required to exploit this vulnerability but attack vectors may vary depending on the implementation. The specific flaw exists within the ModelIO framework. Crafted data in a USD file can trigger a read past the end of an allocated data structure. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the current process.

CVE-2021-30743

This vulnerability allows remote attackers to disclose sensitive information on affected installations of Apple macOS. Interaction with the ImageIO library is required to exploit this vulnerability but attack vectors may vary depending on the implementation. The specific flaw exists within the ImageIO framework. Crafted data in a PCT file can trigger a read past the end of an allocated data structure. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the current process.

CVE-2021-30735

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Apple Safari. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the LLIntGenerator object. The issue results from the lack of proper validation of user-supplied data, which can result in an integer overflow before writing to memory. An attacker can leverage this vulnerability to execute code in the context of the current process.

CVE-2021-30719

This vulnerability allows local attackers to disclose sensitive information on affected installations of Apple macOS. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the handling of IOCTL 0x20006 in the AppleIntelKBLGraphics kext. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated buffer. An attacker can leverage this in conjunction with other vulnerabilities to escalate privileges and execute code in the context of the kernel.

Impact

• Code Execution
• Information Disclosure

Affected Vendors

Apple

Affected Products

• Apple macOs
• iOS Webkit

Remediation

Refer to Apple security document for the patch, upgrade, or suggested workaround information.

https://support.apple.com/en-us/HT212529