randombit botan up to 2.19.4/3.4.x x.509 Certificate certificate validation

Summaryinfo

A vulnerability described as critical has been identified in randombit botan up to 2.19.4/3.4.x. Impacted is an unknown function of the component x.509 Certificate Handler. Such manipulation leads to certificate validation. This vulnerability is documented as CVE-2024-39312. The attack can be executed remotely. There is not any exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in randombit botan up to 2.19.4/3.4.x. Affected by this issue is an unknown code block of the component x.509 Certificate Handler. The manipulation with an unknown input leads to a certificate validation vulnerability. Using CWE to declare the problem leads to CWE-295. The product does not validate, or incorrectly validates, a certificate. Impacted is integrity. CVE summarizes:

Botan is a C++ cryptography library. X.509 certificates can identify elliptic curves using either an object identifier or using explicit encoding of the parameters. A bug in the parsing of name constraint extensions in X.509 certificates meant that if the extension included both permitted subtrees and excluded subtrees, only the permitted subtree would be checked. If a certificate included a name which was permitted by the permitted subtree but also excluded by excluded subtree, it would be accepted. Fixed in versions 3.5.0 and 2.19.5.

The advisory is available at github.com. This vulnerability is handled as CVE-2024-39312 since 06/21/2024. The exploitation is known to be difficult. The attack may be launched remotely. No form of authentication is required for exploitation. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1587.003 by the MITRE ATT&CK project.

The vulnerability scanner Nessus provides a plugin with the ID 240496 (Ubuntu 22.04 LTS / 24.04 LTS / 24.10 : Botan vulnerabilities (USN-7586-1)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 2.19.5 or 3.5.0 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (240496). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

• randombit

Name

• botan

Version

• 2.19.0
• 2.19.1
• 2.19.2
• 2.19.3
• 2.19.4
• 3.0
• 3.1
• 3.2
• 3.3
• 3.4

License

• open-source

Website

• Product: https://github.com/randombit/botan/

CPE 2.3info

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CPE 2.2info

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Entryinfo

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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