SB2021101201 - Privilege escalation in Apple iOS and iPadOS
Published: October 12, 2021 Updated: October 27, 2021
Security Bulletin ID
SB2021101201
CSH Severity
High
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Integer overflow (CVE-ID: CVE-2021-30883)
CWE-ID: CWE-190 - Integer overflow
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 escalate privileges on the system.
The vulnerability exists due to a boundary error within the IOMobileFrameBuffer subsystem. A malicious application can trigger integer overflow and execute arbitrary code on with kernel privileges.
Note, the vulnerability is being actively exploited in the wild.
Remediation
Install update from vendor's website.