Access Restriction Bypass Affecting openldap package, versions <2.4.23-1


0.0
medium

Snyk CVSS

    Attack Complexity Low
NVD
CVSS v3 N/A  medium
Red Hat
CVSS v3 N/A  medium

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  • Snyk ID SNYK-DEBIAN10-OPENLDAP-304634
  • published 28 Jul 2010
  • disclosed 28 Jul 2010

How to fix?

Upgrade Debian:10 openldap to version 2.4.23-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream openldap package and not the openldap package as distributed by Debian:10. See How to fix? for Debian:10 relevant fixed versions and status.

The slap_modrdn2mods function in modrdn.c in OpenLDAP 2.4.22 does not check the return value of a call to the smr_normalize function, which allows remote attackers to cause a denial of service (segmentation fault) and possibly execute arbitrary code via a modrdn call with an RDN string containing invalid UTF-8 sequences, which triggers a free of an invalid, uninitialized pointer in the slap_mods_free function, as demonstrated using the Codenomicon LDAPv3 test suite.