CVE-2023-34302 HIGH

CVE-2023-34302: Ashlar-Vellum Cobalt CO File Parsing Stack-based Buffer Overflow Remote Code Execution Vulnerability

Vendor Ashlar-Vellum
Product Cobalt
Weakness CWE-121
Published May 3, 2024
Last update February 5, 2025

CVSS base score

7.8/10
Attack vector Local
Attack complexity Low
Privileges required None
User interaction Required
Confidentiality High
Integrity High

CVSS vector

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

What the vulnerability does

01Description

Ashlar-Vellum Cobalt CO File Parsing Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Ashlar-Vellum Cobalt. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of CO files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. . Was ZDI-CAN-17865.

Key dates

02Disclosure timeline

May 3, 2024 CVE published
February 5, 2025 Record updated