|CVSS SCORE||7.0, (AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H)|
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 X_B or X_T files. The issue results from the lack of proper validation of user-supplied data, which can result in a write past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process.
09/14/22 – The ZDI reported the vulnerability to the vendor.
09/20/22 – The vendor states the vulnerability report was marked as spam by support, and the vendor asked the ZDI to resend the report.
09/20/22 – The ZDI resent the report.
06/07/23 – The ZDI asked for an update.
06/08/23 – The vendor states that the vulnerability would be fixed in a future build.
06/08/23 – The ZDI informed the vendor that the case will be published as a zero-day advisory on 06/15/23.
-- Mitigation: Given the nature of the vulnerability, the only salient mitigation strategy is to restrict interaction with the application.