SB2020121517 - Multiple vulnerabilities in Apple tvOS
Published: December 15, 2020
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 9 secuirty vulnerabilities.
1) Out-of-bounds write (CVE-ID: CVE-2020-27948)
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a boundary error when processing media files within the CoreAudio component. A remote attacker can create a specially crafted media file, trick the victim into opening it, trigger out-of-bounds write and execute arbitrary code on the target system.
2) Out-of-bounds read (CVE-ID: CVE-2020-27946)
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to a boundary condition within the FontParser component when processing fonts. A remote attacker can trick the victim into opening a file or web page that contains a specially crafted font, trigger out-of-bounds read error and read contents of memory on the system.
3) Buffer overflow (CVE-ID: CVE-2020-27943)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error when processing fonts within the FontParser component. A remote attacker can create a document or web page with a specially crafted font, trick the victim into opening it, trigger memory corruption and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
4) Buffer overflow (CVE-ID: CVE-2020-27944)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error when processing fonts within the FontParser component. A remote attacker can create a document or web page with a specially crafted font, trick the victim into opening it, trigger memory corruption and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
5) 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.6) 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.7) 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.
8) 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.
9) Use-after-free (CVE-ID: CVE-2020-15969)
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error within the usersctp library. A remote attacker can create a specially crafted web page, trick the victim into visiting it, trigger use-after-free error and execute arbitrary code on the target system.
Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.
Remediation
Install update from vendor's website.