Out-of-bounds write in macOS - CVE-2020-3878
Published: June 1, 2020
Vulnerability identifier: #VU28483
CSH Severity: High
CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-3878
CWE-ID: CWE-787
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a boundary error when processing untrusted input within the ImageIO functionality. A remote attacker can create a specially crafted image, trigger out-of-bounds write and execute arbitrary code on the target system.
Affected software
macOS
How to mitigate CVE-2020-3878
Install updates from vendor's website.
macOS - update to 10.15.5 19F96
External References
- http://seclists.org/fulldisclosure/2020/May/49
- http://seclists.org/fulldisclosure/2020/May/53
- http://seclists.org/fulldisclosure/2020/May/54
- http://seclists.org/fulldisclosure/2020/May/55
- http://seclists.org/fulldisclosure/2020/May/56
- http://seclists.org/fulldisclosure/2020/May/57
- http://seclists.org/fulldisclosure/2020/May/59
- https://support.apple.com/HT210918
- https://support.apple.com/HT210919
- https://support.apple.com/HT210920
- https://support.apple.com/HT210921
- https://support.apple.com/kb/HT211168
- https://support.apple.com/kb/HT211170
- https://support.apple.com/kb/HT211171
- https://support.apple.com/kb/HT211175
- https://support.apple.com/kb/HT211178
- https://support.apple.com/kb/HT211179
- https://support.apple.com/kb/HT211181