CVE-2023-40216

2023-08-1000:00:00

mitre

www.cve.org

openbsd

argument-count

bounds check

memory access

kernel crash

crafted dcs

csi terminal escape sequences

5.7 Medium

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

9.2%

JSON

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.

References

ftp.openbsd.org/pub/OpenBSD/patches/7.3/common/014_wscons.patch.sig

github.com/openbsd/src/commit/9d3f688f46eba347e96ff0ae9506ef2061622e0c