An openldap security update has been released for Debian GNU/Linux 10 and 11 to address a SQL injection vulnerability.

DSA 5140-1: openldap security update

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Debian Security Advisory DSA-5140-1 security@debian.org
  https://www.debian.org/security/ Salvatore Bonaccorso
May 19, 2022   https://www.debian.org/security/faq
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Package : openldap
CVE ID : CVE-2022-29155

Jacek Konieczny discovered a SQL injection vulnerability in the back-sql
backend to slapd in OpenLDAP, a free implementation of the Lightweight
Directory Access Protocol, allowing an attacker to alter the database
during an LDAP search operations when a specially crafted search filter
is processed.

For the oldstable distribution (buster), this problem has been fixed
in version 2.4.47+dfsg-3+deb10u7.

For the stable distribution (bullseye), this problem has been fixed in
version 2.4.57+dfsg-3+deb11u1.

We recommend that you upgrade your openldap packages.

For the detailed security status of openldap please refer to its
security tracker page at:
  https://security-tracker.debian.org/tracker/openldap

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at:   https://www.debian.org/security/