SB2019020802 - Multiple vulnerabilities in Apple macOS
Published: February 8, 2019 Updated: February 11, 2019
Security Bulletin ID
SB2019020802
CSH Severity
High
Patch available
YES
Number of vulnerabilities
3
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 3 vulnerabilities.
1) Memory corruption (CVE-ID: CVE-2019-7286)
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 local attacker to gain elevated privileges.
The weakness exists due to a boundary error in the Foundation component when handling malicious input. A local attacker can run a specially crafted application, trigger memory corruption and gain elevated privileges.
Note: according to Ben Hawkes, team leader at Project Zero, the vulnerability has been exploited in the wild as 0day.
2) Security restrictions bypass (CVE-ID: CVE-2019-7288)
CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a remote attacker to bypass security restrictions.
The weakness exists due to improper validation on the FaceTime server. A remote attacker can cause an error in Live Photos in FaceTime and bypass security restrictions.
3) Security restrictions bypass (CVE-ID: CVE-2019-6223)
CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:A/U:Clear
The vulnerability allows a remote attacker to bypass security restrictions.
The weakness exists due to a logic issue in the handling of Group FaceTime calls. A remote attacker who is the initiator of a Group FaceTime call can cause the recipient to answer.
Remediation
Install update from vendor's website.