CVE-2011-1024

NameCVE-2011-1024
Descriptionchain.c in back-ldap in OpenLDAP 2.4.x before 2.4.24, when a master-slave configuration with a chain overlay and ppolicy_forward_updates (aka authentication-failure forwarding) is used, allows remote authenticated users to bypass external-program authentication by sending an invalid password to a slave server.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
Debian Bugs617606

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
openldap (PTS)bullseye (security), bullseye2.4.57+dfsg-3+deb11u1fixed
bookworm2.5.13+dfsg-5fixed
trixie, sid2.5.18+dfsg-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
openldapsourcelenny2.4.11-1+lenny2.1
openldapsourcesqueeze2.4.23-7.1
openldapsource(unstable)2.4.25-1low617606

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