389-ds-base: 389-ds-base: pre-authentication null pointer dereference via paged results and use_one_backend control in op_shared_search
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.5epss 0.8%
exploitation probability
0.8%top 44% of all CVEs
observed exploitation
nono source reports it
A flaw was found in 389 Directory Server. A missing NULL pointer check in the paged results handling of op_shared_search allows an unauthenticated remote attacker to crash the LDAP server by sending a crafted sequence of search requests using the USE_ONE_BACKEND control, resulting in denial of service.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected products
Red Hat · Red Hat Directory Server 11.7 E4S for RHEL 8Red Hat · Red Hat Directory Server 11.9 for RHEL 8Red Hat · Red Hat Directory Server 12Red Hat · Red Hat Directory Server 12.2 E4S for RHEL 9Red Hat · Red Hat Directory Server 12.4 E4S for RHEL 9Red Hat · Red Hat Directory Server 13Red Hat · Red Hat Directory Server 13.2Red Hat · Red Hat Enterprise Linux 10Red Hat · Red Hat Enterprise Linux 10.0 Extended Update SupportRed Hat · Red Hat Enterprise Linux 6Red Hat · Red Hat Enterprise Linux 7 Extended Lifecycle SupportRed Hat · Red Hat Enterprise Linux 8Red Hat · Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update SupportRed Hat · Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-OnRed Hat · Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update SupportRed Hat · Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-OnRed Hat · Red Hat Enterprise Linux 8.8 Telecommunications Update ServiceRed Hat · Red Hat Enterprise Linux 8.8 Update Services for SAP SolutionsRed Hat · Red Hat Enterprise Linux 9Red Hat · Red Hat Enterprise Linux 9.2 Update Services for SAP SolutionsRed Hat · Red Hat Enterprise Linux 9.4 Update Services for SAP SolutionsRed Hat · Red Hat Enterprise Linux 9.6 Extended Update SupportReferences
https://access.redhat.com/errata/RHSA-2026:64771https://access.redhat.com/errata/RHSA-2026:64776https://access.redhat.com/errata/RHSA-2026:64778https://access.redhat.com/errata/RHSA-2026:64779https://access.redhat.com/errata/RHSA-2026:64780https://access.redhat.com/errata/RHSA-2026:64781https://access.redhat.com/errata/RHSA-2026:64783https://access.redhat.com/errata/RHSA-2026:64784https://access.redhat.com/errata/RHSA-2026:64785https://access.redhat.com/errata/RHSA-2026:64789https://access.redhat.com/errata/RHSA-2026:64790https://access.redhat.com/errata/RHSA-2026:64791