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Debian LTS Advisory DLA-2574-1              [email protected]
https://www.debian.org/lts/security/                      Utkarsh Gupta
February 21, 2021                           https://wiki.debian.org/LTS
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Package        : openldap
Version        : 2.4.44+dfsg-5+deb9u8
CVE ID         : CVE-2021-27212

A vulnerability in the Certificate List Exact Assertion validation
was discovered in OpenLDAP, a free implementation of the Lightweight
Directory Access Protocol. An unauthenticated remote attacker can
take advantage of this flaw to cause a denial of service (slapd
daemon crash) via specially crafted packets.

For Debian 9 stretch, this problem has been fixed in version

We recommend that you upgrade your openldap packages.

For the detailed security status of openldap please refer to
its security tracker page at:

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