🛡️ CVE-2024-39312 — botan

🟡 CVSS 5.3 — Medium ✅ No Known Exploit CWE-295 NVD

5.3

CVSS Score

0 Low4 Medium7 High9 Critical10

Description

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.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality none, integrity low, availability none.

Weakness class

CVE-2024-39312 is classified as CWE-295: Improper Certificate Validation. A TLS certificate is accepted without proper verification, so a man-in-the-middle can present their own.

Affected software

CVE-2024-39312 is recorded against 1 package.

botan (from 3.0.0 up to 3.5.0)

Timeline and source

Published on 8 July 2024 and last revised on 17 June 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

github.com
github.com

CVE-2024-39312 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Alpine Debian Ubuntu

Details

Severity MEDIUM

CVSS Score 5.3

CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

CWE CWE-295

Public Exploit ✅ No

Source NVD

Published 2024-07-08

Updated 2026-08-11

Modified 2026-06-17

Fix URL N/A

Affected Packages

Software	From version	Fixed in
botan	3.0.0	3.5.0

References

Third Party Advisory https://github.com/randombit/botan/security/advisories/GHSA-jp24-56jm-gg86

🔗 NVD 🔗 Mitre

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