What’s Vulnerable › Vulnerabilities

CVE-2024-28820

• Severity: medium (CVSS 6.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-06-27 · updated 2026-06-17
• Weakness: CWE-125

Description

Buffer overflow in the extract_openvpn_cr function in openvpn-cr.c in openvpn-auth-ldap (aka the Three Rings Auth-LDAP plugin for OpenVPN) 2.0.4 allows attackers with a valid LDAP username and who can control the challenge/response password field to pass a string with more than 14 colons into this field and cause a buffer overflow.

Affected products

• Threerings Openvpn-Auth-Ldap: 2.04

References

• https://github.com/threerings/openvpn-auth-ldap/pull/92
• https://github.com/threerings/openvpn-auth-ldap/tags
• https://github.com/threerings/openvpn-auth-ldap/pull/92
• https://github.com/threerings/openvpn-auth-ldap/tags

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