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CVE-2023-40216

Date: August 10, 2023

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.

Language: C

Severity Score

Related Resources (4)

https://nvd.nist.gov/vuln/detail/CVE-2023-40216
https://github.com/openbsd/src/commit/9d3f688f46eba347e96ff0ae9506ef2061622e0c
https://ftp.openbsd.org/pub/OpenBSD/patches/7.3/common/014_wscons.patch.sig
https://www.mend.io/vulnerability-database/CVE-2023-40216

Severity Score

Weakness Type (CWE)

Missing Authorization

CWE-862

CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

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