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CVE-2023-6936

Published: 20 February 2024

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).

Priority

Medium

Status

Package Release Status
wolfssl
Launchpad, Ubuntu, Debian
bionic Needs triage

focal Needs triage

jammy Needs triage

lunar Ignored
(end of life, was needs-triage)
mantic Needs triage

noble Not vulnerable
(5.6.6-1.2)
trusty Ignored
(end of standard support)
upstream
Released (5.6.6-1.2)
xenial Needs triage