CVE-2023-34311

Ashlar-Vellum Cobalt Untrusted Pointer Dereference 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 a user-supplied value prior to dereferencing it as a pointer. An attacker can leverage this vulnerability to execute code in the context of the current process. . Was ZDI-CAN-19879.

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

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

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://www.zerodayinitiative.com/advisories/ZDI-23-871/	Third Party Advisory
https://www.zerodayinitiative.com/advisories/ZDI-23-871/	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:ashlar:cobalt:12.0.1204.57:*:*:*:*:*:*:*

History

08 Aug 2025, 16:29

Type	Values Removed	Values Added
CPE	cpe:2.3:a:ashlar:cobalt:1204.57:::::::*	cpe:2.3:a:ashlar:cobalt:12.0.1204.57:::::::*

07 Aug 2025, 15:43

Type	Values Removed	Values Added
First Time		Ashlar Ashlar cobalt
CPE		cpe:2.3:a:ashlar:cobalt:1204.57:::::::*
References	~~() https://www.zerodayinitiative.com/advisories/ZDI-23-871/ -~~	() https://www.zerodayinitiative.com/advisories/ZDI-23-871/ - Third Party Advisory

Information

Published : 2024-05-03 02:15

Updated : 2025-08-08 16:29

NVD link : CVE-2023-34311

Mitre link : CVE-2023-34311

CVE.ORG link : CVE-2023-34311

JSON object : View

Products Affected

ashlar

cobalt

CWE

CWE-822

Untrusted Pointer Dereference

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