CVE-2005-2534

NameCVE-2005-2534
DescriptionRace condition in OpenVPN before 2.0.1, when --duplicate-cn is not enabled, allows remote attackers to cause a denial of service (server crash) via simultaneous TCP connections from multiple clients that use the same client certificate.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDSA-851-1
Debian Bugs324167

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
openvpn (PTS)jessie, jessie (lts)2.3.4-5+deb8u3fixed
stretch (security), stretch (lts), stretch2.4.0-6+deb9u4fixed
buster2.4.7-1+deb10u1fixed
bullseye2.5.1-3fixed
bookworm (security), bookworm2.6.3-1+deb12u2fixed
sid, trixie2.6.12-1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
openvpnsourcesarge2.0-1sarge1DSA-851-1
openvpnsource(unstable)2.0.2-1high324167
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