CVE-2026-5447
Description
A flaw was found in wolfSSL. A heap buffer overflow, a type of memory corruption vulnerability, occurs when converting an X.509 certificate internally due to incorrect size handling of the AuthorityKeyIdentifier extension. A remote attacker could exploit this flaw to cause a low integrity impact.
Statement
This vulnerability doesn't affect any versions of MariaDB as shipped with Red Hat Products. For Red Hat products MariaDB is compiled and linked against the system's OpenSSL library instead of using the MariaDB's bundled WolfSSL library routines.
Understanding the Weakness (CWE)
Integrity,Availability,Confidentiality
Technical Impact: DoS: Crash, Exit, or Restart; Execute Unauthorized Code or Commands; Read Memory; Modify Memory
If the incorrect calculation is used in the context of memory allocation, then the software may create a buffer that is smaller or larger than expected. If the allocated buffer is smaller than expected, this could lead to an out-of-bounds read or write (CWE-119), possibly causing a crash, allowing arbitrary code execution, or exposing sensitive data.
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