CVE-2023-6936 Affecting wolfssl package, versions <5.6.6-1.2
Threat Intelligence
EPSS
0.04% (10th
percentile)
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Test your applications- Snyk ID SNYK-DEBIANUNSTABLE-WOLFSSL-6139105
- published 23 Dec 2023
- disclosed 20 Feb 2024
Introduced: 23 Dec 2023
CVE-2023-6936 Open this link in a new tabHow to fix?
Upgrade Debian:unstable wolfssl to version 5.6.6-1.2 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream wolfssl package and not the wolfssl package as distributed by Debian.
See How to fix? for Debian:unstable relevant fixed versions and status.
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).