SB2022012634 - Multiple vulnerabilities in Apple macOS Big Sur
Published: January 26, 2022 Updated: June 2, 2022
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 7 vulnerabilities.
1) Out-of-bounds read (CVE-ID: CVE-2021-30960)
CWE-ID: CWE-125 - Out-of-bounds read
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
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.
2) Link following (CVE-ID: CVE-2022-22585)
CWE-ID: CWE-59 - Improper Link Resolution Before File Access ('Link Following')
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a malicious application to gain access to sensitive information.
The vulnerability exists due to incorrect path validation logic for symlinks in iCloud. A malicious application can access user's files.
3) Buffer overflow (CVE-ID: CVE-2022-22587)
CWE-ID: CWE-119 - Memory corruption
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Amber
The vulnerability allows a malicious application to execute arbitrary code with elevated privileges.
The vulnerability exists due to a boundary error within the IOMobileFrameBuffer subsystem. A malicious application can trigger buffer overflow and execute arbitrary code with kernel privileges.
Note, the vulnerability is being actively exploited in the wild.
4) Buffer overflow (CVE-ID: CVE-2022-22593)
CWE-ID: CWE-119 - Memory corruption
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a boundary error in macOS kernel. A local user or malicious application can trigger buffer overflow and execute arbitrary code with kernel privileges.
5) Out-of-bounds read (CVE-ID: CVE-2022-22579)
CWE-ID: CWE-125 - Out-of-bounds read
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
The vulnerability allows a remote attacker to compromise the affected system.
The vulnerability exists due to a boundary condition in Model I/O when processing STL files. A remote attacker can create a specially crafted STL file, trick the victim into opening it, trigger an out-of-bounds read error and read contents of memory or execute arbitrary code on the system.
6) Security restrictions bypass (CVE-ID: CVE-2022-22583)
CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local application to bypass implemented security restrictions.
The vulnerability exists due to improper permissions management in PackageKit. A malicious application can access restricted files.
7) Security restrictions bypass (CVE-ID: CVE-2021-30972)
CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local application to bypass implemented privacy restrictions.
The vulnerability exists due to improper restrictions in TCC. A malicious application can bypass certain Privacy preferences.
Remediation
Install update from vendor's website.