Heap-based buffer overflow in HTMLDOC - CVE-2021-26252
Published: June 10, 2021
Vulnerability identifier: #VU54039
CSH Severity: High
CVSS v4.0: 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/E:U/U:Amber
CVE-ID: CVE-2021-26252
CWE-ID: CWE-122
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Michael R Sweet
Affected software:
HTMLDOC
HTMLDOC
Detailed vulnerability description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error within the pspdf_prepare_page() function ps-pdf.cxx. A remote attacker can pass specially crafted JPEG image to the application, trigger heap-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
How to mitigate CVE-2021-26252
Install updates from vendor's website.