Out-of-bounds write in Adobe Reader and Adobe Acrobat - CVE-2021-45068
Published: January 11, 2022 / Updated: January 14, 2022
Vulnerability identifier: #VU59431
CSH Severity: High
CVSS v4: 8.4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-45068
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 embedded fonts. A remote attacker can create a specially crafted PDF file, trick the victim into opening it using the affected software, trigger out-of-bounds write and execute arbitrary code on the target system.
Affected software
Adobe Reader
Adobe Acrobat
Adobe Acrobat
How to mitigate CVE-2021-45068
Install updates from vendor's website.
Adobe Reader - addressed in versions 17.011.30207, 20.004.30020, 21.011.20039
Adobe Acrobat - addressed in versions 17.011.30207, 20.004.30020, 21.011.20039
Adobe Acrobat - addressed in versions 17.011.30207, 20.004.30020, 21.011.20039