Use After Free in Ashlar Cobalt
CVE-2023-42104
Ashlar-Vellum Cobalt AR File Parsing Use-After-Free 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 AR files. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker can leverage this vulnerability to execute code in the context of the current process. . Was ZDI-CAN-20630.
Vulnerability class: Use-After-Free
EPSS: 0.005 (42.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
Affected products
- Ashlar Cobalt — versions 12.0.1204.61
- Ashlar-vellum Cobalt — versions Ashlar-Vellum Cobalt 12 beta build 1204.62
Weakness classification (CWE)
References
- zdi-disclosures@trendmicro.com (x_research-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2023-42104?
- CVE-2023-42104 is a high-severity vulnerability in Ashlar Cobalt, classified under Use After Free. CVSS score: 7.8/10. Published 2024-05-03.
- How severe is CVE-2023-42104?
- High severity. CVSS v3 base score is 7.8 out of 10.