CVE-2023-39943

Ashlar-Vellum Cobalt, Xenon, Argon, Lithium Out-of-bounds Write

Description

In Ashlar-Vellum Cobalt versions prior to v12 SP2 Build (1204.200), the affected application lacks proper validation of user-supplied data when parsing XE files. This could lead to an out-of-bounds write. An attacker could leverage this vulnerability to execute arbitrary code in the context of the current process.

Remediation

Solution:

  • Ashlar-Vellum recommends users apply the following mitigations to help reduce risk: * Install the latest version of Graphite https://download.ashlar.com/v13/gr.html . * Update to the latest version for Cobalt, Xenon, Lithium, and Argon by installing v12 SP12 Alpha https://download.ashlar.com/v12/mod-history.html  Build (1204.200) (Jan 22, 2025). * Only open files from trusted sources.

Category

8.4
CVSS
Severity: High
CVSS 4.0 •
CVSS 3.1 •
EPSS 0.02%
Affected: Ashlar-Vellum Cobalt
Affected: Ashlar-Vellum Cobalt Share
Affected: Ashlar-Vellum Xenon
Affected: Ashlar-Vellum Argon
Affected: Ashlar-Vellum Lithium
Published at:
Updated at:

References

Link Tags
https://www.cisa.gov/news-events/ics-advisories/icsa-23-299-03

Frequently Asked Questions

What is the severity of CVE-2023-39943?
CVE-2023-39943 has been scored as a high severity vulnerability.
How to fix CVE-2023-39943?
To fix CVE-2023-39943: Ashlar-Vellum recommends users apply the following mitigations to help reduce risk: * Install the latest version of Graphite https://download.ashlar.com/v13/gr.html . * Update to the latest version for Cobalt, Xenon, Lithium, and Argon by installing v12 SP12 Alpha https://download.ashlar.com/v12/mod-history.html  Build (1204.200) (Jan 22, 2025). * Only open files from trusted sources.
Is CVE-2023-39943 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-39943 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-39943?
CVE-2023-39943 affects Ashlar-Vellum Cobalt, Ashlar-Vellum Cobalt Share, Ashlar-Vellum Xenon, Ashlar-Vellum Argon, Ashlar-Vellum Lithium.
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