PT-2023-3630 · Ashlar Vellum · Ashlar-Vellum Cobalt

Published 2023-01-11 · Updated 2025-08-25 · CVE-2023-35709

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Ashlar-Vellum Cobalt (affected versions not specified)

Description This issue allows remote attackers to execute arbitrary code on affected installations. User interaction is required, where the target must visit a malicious page or open a malicious file. The flaw exists within the parsing of CO files due to the lack of proper validation of the length of user-supplied data prior to copying it to a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. The issue is also related to the dereference of an untrusted pointer.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

RCE

Heap Based Buffer Overflow

Untrusted Pointer Dereference

Weakness Enumeration

CWE-122

CWE-822

Related Identifiers

BDU:2023-03914

CVE-2023-35709

ZDI-23-872

Affected Products

Ashlar-Vellum Cobalt

References · 9

• https://nvd.nist.gov/vuln/detail/CVE-2023-35709 · Security Note
• https://bdu.fstec.ru/vul/2023-03914 · Security Note
• https://zerodayinitiative.com/advisories/ZDI-23-872 · Security Note
• https://osv.dev/vulnerability/CVE-2023-35709 · Vendor Advisory
• https://t.me/cveNotify/131452 · Telegram Post
• https://twitter.com/CVEnew/status/1787926461229437421 · Twitter Post
• https://vuldb.com/ru/?id.231849 · Note
• https://cybersecurity-help.cz/vdb/SB2023062022 · Note
• https://t.me/cveNotify/133303 · Telegram Post