Out-of-bounds read in iPadOS and Apple iOS - CVE-2021-1838
Published: June 3, 2021
Vulnerability identifier: #VU53789
CSH Severity: Low
CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-1838
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to a boundary condition within the ImageIO framework. A remote attacker can create a specially crafted PICT image, trick the victim into opening it, trigger out-of-bounds read error and read contents of memory on the system.
Affected software
iPadOS
Apple iOS
Apple iOS
How to mitigate CVE-2021-1838
Install updates from vendor's website.
iPadOS - update to 14.4 18D52
Apple iOS - update to 14.4 18D52
Apple iOS - update to 14.4 18D52