SB2021121433 - Multiple vulnerabilities in Apple tvOS
Published: December 14, 2021 Updated: June 12, 2023
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 29 secuirty vulnerabilities.
1) Buffer overflow (CVE-ID: CVE-2021-30993)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in the OS kernel. A remote attacker on the local network can send specially crafted traffic to the system, trigger memory corruption and execute arbitrary code.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
2) Type Confusion (CVE-ID: CVE-2021-30954)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a type confusion error in WebKit. A remote attacker can trick the victim to visit a specially crafted website, trigger a type confusion error and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
3) Out-of-bounds read (CVE-ID: CVE-2021-30953)
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a boundary error when processing HTML content in WebKit. A remote attacker can create a specially crafted website, trick the victim into opening it using the affected software, trigger out-of-bounds read error and execute arbitrary code on the target system.
4) Race condition (CVE-ID: CVE-2021-30984)
The vulnerability allows a remote attacker to compromise the affected system.
The vulnerability exists due to a race condition in WebKit. A local user can trick the victim to visit a specially crafted website, trigger a race condition and execute arbitrary code on the system.
5) Integer overflow (CVE-ID: CVE-2021-30952)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to integer overflow in WebKit. A remote attacker can trick the victim to visit a specially crafted web page, trigger an integer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
6) Use-after-free (CVE-ID: CVE-2021-30951)
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error in WebKit when processing HTML content. A remote attacker can create a specially crafted web page, trick the victim into opening it, trigger a use-after-free error and execute arbitrary code on the system.
Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.
7) Use-after-free (CVE-ID: CVE-2021-30936)
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error in WebKit when processing HTML content. A remote attacker can create a specially crafted web page, trick the victim into opening it, trigger a use-after-free error and execute arbitrary code on the system.
Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.
8) Buffer overflow (CVE-ID: CVE-2021-30934)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in WebKit. A remote attacker can create a specially crafted web page, 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.
9) Improper access control (CVE-ID: CVE-2021-30947)
The vulnerability allows a local application to gain unauthorized access to otherwise restricted information.
The vulnerability exists due to improper access restrictions within Sandbox implementation. A local application can bypass implemented security restrictions and access user's files.
10) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2021-30968)
The vulnerability allows a local application to bypass implemented security restrictions.
The vulnerability exists due to a validation issue in the Sandbox feature, related to hard link behavior. A malicious application can bypass certain Privacy preferences.
11) Race condition (CVE-ID: CVE-2021-30995)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a race condition in the Preferences feature. A local user can exploit the race and gain unauthorized access to sensitive information and escalate privileges on the system.
12) Race condition (CVE-ID: CVE-2021-30955)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a race condition in the OS kernel. A local user can exploit the race and gain unauthorized access to sensitive information and escalate privileges on the system.
13) Buffer overflow (CVE-ID: CVE-2021-30949)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a boundary error in the OS kernel subsystem. A local user can run a specially crafted program to trigger memory corruption and execute arbitrary code with kernel privileges.
14) Out-of-bounds read (CVE-ID: CVE-2021-30960)
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to a boundary condition within the Audio subsystem. A remote attacker can create a specially crafted audio file, trick the victim into opening it, trigger out-of-bounds read error and read contents of memory on the system.
15) Use-after-free (CVE-ID: CVE-2021-30980)
The vulnerability allows a local user to escalate privileges on the system.
16) Use-after-free (CVE-ID: CVE-2021-30927)
The vulnerability allows a local user to escalate privileges on the system.
17) Buffer overflow (CVE-ID: CVE-2021-30937)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a boundary error in the OS kernel subsystem. A local user can run a specially crafted program to trigger memory corruption and execute arbitrary code with kernel privileges.
18) Buffer overflow (CVE-ID: CVE-2021-30916)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a boundary error within the macOS kernel subsystem. A local user can run a specially crafted program to trigger memory corruption and execute arbitrary code with kernel privileges.
19) Out-of-bounds read (CVE-ID: CVE-2021-30939)
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a boundary error when processing DDS images in ImageIO. A remote attacker can create a specially crafted image file, trick the victim into opening it using the affected software, trigger out-of-bounds read error and execute arbitrary code on the target system.
20) Input validation error (CVE-ID: CVE-2021-30945)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to insufficient validation of user-supplied input in Crash Reporter. A local user can pass specially crafted input to the system and escalate privileges.
21) Out-of-bounds read (CVE-ID: CVE-2021-30958)
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a boundary error when processing media files in CoreAudio. A remote attacker can create a specially crafted media file, trick the victim into opening it using the affected software, trigger an out-of-bounds read error and execute arbitrary code on the target system.
22) Buffer overflow (CVE-ID: CVE-2021-30957)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in CoreAudio when processing media files. A remote attacker can create a specially crafted media file, 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.
23) Buffer overflow (CVE-ID: CVE-2021-30942)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in ColorSync when processing ICC profiles in images. A remote attacker can create a specially crafted image, 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.
24) Buffer overflow (CVE-ID: CVE-2021-30926)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in ColorSync when processing ICC profiles in images. A remote attacker can create a specially crafted image, 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.
25) Information disclosure (CVE-ID: CVE-2021-30966)
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to a logic error in the CFNetwork Proxies implementation. User's traffic can be unexpectedly leaked to a proxy server despite PAC configurations.
26) Information disclosure (CVE-ID: CVE-2021-30944)
The vulnerability allows a local application to gain access to potentially sensitive information.
The vulnerability exists due to a logic error in SQLite implementation. A local application can access data from other apps by enabling additional logging.
27) Out-of-bounds read (CVE-ID: CVE-2021-30962)
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to a boundary error in CoreAudio component when parsing files. A remote attacker can create a specially crafted audio file, trick the victim into opening it, trigger an out-of-bounds read error and disclose personal information.
28) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2021-31000)
The vulnerability allows a local application to bypass implemented security restrictions.
The vulnerability exists due to improper permissions management in Game Center. A local application can read sensitive contact information.
29) Out-of-bounds read (CVE-ID: CVE-2021-31013)
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to a boundary condition in FontParser. A remote attacker can create a specially crafted file, trick the victim into opening it, trigger an out-of-bounds read error and read contents of memory on the system.
Remediation
Install update from vendor's website.