Out-of-bounds write in Poppler - CVE-2020-18839
Published: October 31, 2023
Vulnerability identifier: #VU82602
CSH Severity: High
CVSS v4: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-18839
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 HtmlOutputDev::page() function. A remote attacker can create a specially crafted file, trick the victim into opening it using the affected software, trigger an out-of-bounds write and execute arbitrary code on the target system.
Affected software
Poppler
Amazon Linux AMI
poppler
Amazon Linux AMI
poppler
How to mitigate CVE-2020-18839
Install updates from vendor's website.
Poppler - update to 0.76.0
poppler - update to 0.26.5-43.25
poppler - update to 0.26.5-43.25