wolfSSL up to 5.7.0 MatchDomainName out-of-bounds

Summaryinfo

A vulnerability classified as problematic was found in wolfSSL up to 5.7.0. Affected by this vulnerability is the function MatchDomainName. Executing a manipulation can lead to out-of-bounds. This vulnerability appears as CVE-2024-5991. The attack may be performed from remote. There is no available exploit.

Detailsinfo

A vulnerability classified as critical was found in wolfSSL up to 5.7.0. This vulnerability affects the function MatchDomainName. The manipulation with an unknown input leads to a out-of-bounds vulnerability. The CWE definition for the vulnerability is CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

In function MatchDomainName(), input param str is treated as a NULL terminated string despite being user provided and unchecked. Specifically, the function X509_check_host() takes in a pointer and length to check against, with no requirements that it be NULL terminated. If a caller was attempting to do a name check on a non-NULL terminated buffer, the code would read beyond the bounds of the input array until it found a NULL terminator.This issue affects wolfSSL: through 5.7.0.

The advisory is shared for download at github.com. This vulnerability was named CVE-2024-5991 since 06/13/2024. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 212936 (CBL Mariner 2.0 Security Update: mariadb (CVE-2024-5991)), which helps to determine the existence of the flaw in a target environment.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at Tenable (212936). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Name

• wolfSSL

Version

• 5.0
• 5.1
• 5.2
• 5.3
• 5.4
• 5.5
• 5.6
• 5.7.0

License

• open-source

Website

• Product: https://github.com/wolfSSL/wolfssl/

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Entryinfo

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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