SB2018092403 - Multiple vulnerabilities in Apple MacOS
Published: September 24, 2018 Updated: October 25, 2018
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 7 vulnerabilities.
1) Out-of-bounds read (CVE-ID: CVE-2018-4338)
CWE-ID: CWE-125 - Out-of-bounds read
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/U:Clear
The vulnerability allows a local attacker to obtain potentially sensitive information on the target system.
The weakness exists on systems with Wi-Fi is enabled due to stack value by OOB Read is stored in the
ol_nd_hostip variable when the setOFFLOAD_NDP function does not check the input value. A local attacker can use the dlsym function to /System/Library/PrivateFrameworks/Apple80211.framework/Apple80211, which yields Apple80211Open, Apple80211BindToInterface, and Apple80211Close functions, trigger out-of-bounds read and obtain a kernel address for privilege escalation in the Apple OS X local environment.2) Information disclosure (CVE-ID: CVE-2018-4324)
CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local attacker to obtain potentially sensitive information on the target system.
The weakness exists due to insufficient permissions and access controls when handling the Apple ID. A local attacker can run a specially crafted application and determine the Apple ID of the owner of the computer.
3) Information disclosure (CVE-ID: CVE-2018-4321)
CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local attacker to obtain potentially sensitive information on the target system.
The weakness exists due to improper validation of the process entitlement. A local attacker can run a specially crafted application and access local users AppleIDs.
4) Information disclosure (CVE-ID: CVE-2018-4333)
CWE-ID: CWE-20 - Improper input validation
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 attacker to obtain potentially sensitive information on the target system.
The weakness exists due to improper validation of user-supplied input. A local attacker can run a specially crafted application and read restricted memory.
5) Security restrictions bypass (CVE-ID: CVE-2018-4353)
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:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local attacker to bypass security restrictions on the target system.
The weakness exists due to improper sandbox restrictions. A local attacker can run a specially crafted application and circumvent sandbox restrictions.
6) Memory corruption (CVE-ID: CVE-2018-4336)
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 attacker to gain elevated privileges on the target system.
The weakness exists due to improper sandbox restrictions when handling malicious input. A local attacker can run a specially crafted application and execute arbitrary code with kernel privileges.
7) Memory corruption (CVE-ID: CVE-2018-4344)
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:Clear
The vulnerability allows a local attacker to gain elevated privileges on the target system.
The weakness exists due to improper sandbox restrictions when handling malicious input. A local attacker can run a specially crafted application and execute arbitrary code with kernel privileges.
Remediation
Install update from vendor's website.