Ashlar-Vellum Cobalt AR File Parsing Out-Of-Bounds Read 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 user-supplied data, which can result in a read past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-20418.

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

Zero Day Initiative CWE-125

Zero Day Initiative https://www.zerodayinitiative.com/advisories/ZDI-23-1450/ [No types assigned]