Name: CVE-2023-6936: Out-of-bounds Read
Creator: Rapid7
Published: 2024-02-20T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2023-6936, CWE-125, CWE-126, CVSS 5.3, EPSS 0.006

In wolfSSL prior to 5.6.6, if callback functions are enabled (via the WOLFSSL_CALLBACKS flag), then a malicious TLS client or network attacker can trigger a buffer over-read on the heap of 5 bytes (WOLFSSL_CALLBACKS is only intended for debugging).

CVSS Details

CVSS 3.1 Base Score: 5.3
CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Alpine Linux	—	Upgrade wolfssl	Aug 22, 2024	Feb 20, 2024
Debian	—	Upgrade wolfssl	May 15, 2025	Feb 20, 2024

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CVSS Details

Covered by Rapid7

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