PT-2023-5405 · Ashlar Vellum · Ashlar-Vellum Cobalt

Published 2023-09-21 · Updated 2025-08-08 · CVE-2023-42103

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 The issue is related to a use-after-free vulnerability in the parsing of AR files, which can be exploited by remote attackers to execute arbitrary code on affected installations. This requires user interaction, such as visiting a malicious page or opening a malicious file. The flaw exists due to the lack of validation of an object's existence before performing operations on it, allowing an attacker to execute code in the context of the current process.

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

RCE

Use After Free

Weakness Enumeration

CWE-416

Related Identifiers

BDU:2023-06035

CVE-2023-42103

ZDI-23-1452

Affected Products

Ashlar-Vellum Cobalt

References · 9

• https://nvd.nist.gov/vuln/detail/CVE-2023-42103 · Security Note
• https://osv.dev/vulnerability/CVE-2023-42103 · Vendor Advisory
• https://zerodayinitiative.com/advisories/ZDI-23-1452 · Security Note
• https://bdu.fstec.ru/vul/2023-06035 · Security Note
• https://twitter.com/CVEnew/status/1786771024182206749 · Twitter Post
• https://t.me/cveNotify/131461 · Telegram Post
• https://twitter.com/TheZDIBugs/status/1705253787537952820 · Twitter Post
• https://t.me/cvenotify/128013 · Telegram Post
• https://cybersecurity-help.cz/vdb/SB2023092231 · Note