CVE-2024-28820

EUVD-2024-25906
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
6.3 MEDIUM
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
CISA-ADPADP
6.3 MEDIUM
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: 43%
Debian logo
Debian Releases
Debian Product
Codename
openvpn-auth-ldap
bookworm
no-dsa
bullseye
no-dsa
forky
2.0.4-5
fixed
sid
2.0.4-5
fixed
trixie
2.0.4-4
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
openvpn-auth-ldap
bionic
needs-triage
focal
needs-triage
jammy
needs-triage
mantic
ignored
noble
needs-triage
oracular
ignored
plucky
needs-triage
questing
needs-triage
xenial
needs-triage
Common Weakness Enumeration
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