CVE-2023-40216

Description

OpenBSD 7.3 before errata 014 is missing an argument-count bounds check in console terminal emulation. This could cause incorrect memory access and a kernel crash after receiving crafted DCS or CSI terminal escape sequences.

Category

5.5
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.04%
Vendor Advisory openbsd.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://ftp.openbsd.org/pub/OpenBSD/patches/7.3/common/014_wscons.patch.sig patch vendor advisory
https://github.com/openbsd/src/commit/9d3f688f46eba347e96ff0ae9506ef2061622e0c patch

Frequently Asked Questions

What is the severity of CVE-2023-40216?
CVE-2023-40216 has been scored as a medium severity vulnerability.
How to fix CVE-2023-40216?
To fix CVE-2023-40216, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-40216 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-40216 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.
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