Buffer overflow in Ashlar Cobalt
CVE-2023-34289
Ashlar-Vellum Cobalt Heap-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 AR files. The issue results from 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. . Was ZDI-CAN-17985.
Vulnerability class: Buffer Overflow
EPSS: 0.004 (32.6th 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
- Ashlar-vellum Cobalt — versions Ashlar-Vellum Cobalt 11 build 1111
Weakness classification (CWE)
References
- zdi-disclosures@trendmicro.com (x_research-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2023-34289?
- CVE-2023-34289 is a high-severity vulnerability in Ashlar Cobalt, classified under Heap-based Buffer Overflow. CVSS score: 7.8/10. Published 2024-05-03.
- How severe is CVE-2023-34289?
- High severity. CVSS v3 base score is 7.8 out of 10.