SB2021012728 - Multiple vulnerabilities in Apple iCloud for Window

Description

This security bulletin contains information about 4 secuirty vulnerabilities.

1) Out-of-bounds write (CVE-ID: CVE-2020-29611)

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error when processing untrusted input within the ImageIO component. A remote attacker can create a specially crafted image file, trick the victim into opening it using the affected software, trigger out-of-bounds write and execute arbitrary code on the target system.

2) Out-of-bounds read (CVE-ID: CVE-2020-29618)

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to a heap corruption within the ImageIO component when processing images. A remote attacker can create a specially crafted image, trick the victim into opening it, trigger out-of-bounds read error and read contents of memory on the system or perform a denial of service (DoS) attack.

Reportedly this vulnerability can lead to remote code execution.

3) Out-of-bounds read (CVE-ID: CVE-2020-29617)

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to a heap corruption within the ImageIO component when processing images. A remote attacker can create a specially crafted image, trick the victim into opening it, trigger out-of-bounds read error and read contents of memory on the system or perform a denial of service (DoS) attack.

4) Out-of-bounds read (CVE-ID: CVE-2020-29619)

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to a heap corruption within the ImageIO component when processing images. A remote attacker can create a specially crafted image, trick the victim into opening it, trigger out-of-bounds read error and read contents of memory on the system or perform a denial of service (DoS) attack.

Remediation

Install update from vendor's website.

References

• https://support.apple.com/en-us/HT212145