CVE-2011-1024 · cross-distro fix matrix

CVE-2011-1024: chain.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 sl

Affects 3 Linux releases across 3 (distro × package) combinations.

Fix per ecosystem

Each block below is a distro release where CVE-2011-1024 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

openldap→ fixed in2.4.25-1urgency: low

sudo apt-get install --only-upgrade -y openldap

Debian bookworm

Source: Debian Security Tracker

openldap→ fixed in2.4.25-1urgency: low

sudo apt-get install --only-upgrade -y openldap

Debian trixie

Source: Debian Security Tracker

openldap→ fixed in2.4.25-1urgency: low

sudo apt-get install --only-upgrade -y openldap

Are YOU affected by CVE-2011-1024?

5-second check on your actual server. Reads /etc/os-release, uname -r, and the distro's package manager; matches against this same cross-source index live.

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