CVE-2026-11791

A flaw was found in 389 Directory Server. During schema reload, the attrsyntaxswapht function unconditionally frees attribute syntax information nodes, bypassing the refcount-based deferred deletion used elsewhere in the attribute syntax subsystem. If an administrator triggers schema reload while...

CVE-2026-11791

The CVE-2026-11791 entry concerns 389 Directory Server (389-ds-base), where during schema reload the attr_syntax_swap_ht() function unconditionally frees attribute syntax information nodes, bypassing refcount-based deferred deletion. This can lead to use-after-free or double-free when LDAP query ...

CVE-2026-11791 389-ds-base: 389-ds-base: use-after-free in schema reload via attr_syntax_swap_ht()

A flaw was found in 389 Directory Server. During schema reload, the attrsyntaxswapht function unconditionally frees attribute syntax information nodes, bypassing the refcount-based deferred deletion used elsewhere in the attribute syntax subsystem. If an administrator triggers schema reload while...

CVE-2026-11791 389-ds-base: 389-ds-base: use-after-free in schema reload via attr_syntax_swap_ht()

A flaw was found in 389 Directory Server. During schema reload, the attrsyntaxswapht function unconditionally frees attribute syntax information nodes, bypassing the refcount-based deferred deletion used elsewhere in the attribute syntax subsystem. If an administrator triggers schema reload while...

RHEL 9 : redhat-ds:12 (RHSA-2026:26639)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:26639 advisory. Red Hat Directory Server is an LDAPv3-compliant directory server. The suite of packages includes the Lightweight Directory Access Protocol LDAP...

RockyLinux 9 : 389-ds-base (RLSA-2026:26455)

The remote RockyLinux 9 host has packages installed that are affected by a vulnerability as referenced in the RLSA-2026:26455 advisory. 389-ds-base: 389-ds-base: unbounded LDAP controls count in getldapmessagecontrolsext causes CPU and heap amplification remote DoS CVE-2026-9064 Bug Fixes and...

Linux Distros Unpatched Vulnerability : CVE-2026-12528

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - A flaw was found in 389 Directory Server in the aclpnormalizeacltxt function of aclparse.c. A malformed ACI Access Control Instruction string can trigger...

Important: Red Hat Security Advisory: redhat-ds:12 security update

An update for the redhat-ds:12 module is now available for Red Hat Directory Server 12.2 E4S for RHEL 9. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is...

CVE-2026-12528

A flaw was found in 389 Directory Server in the aclpnormalizeacltxt function of aclparse.c. A malformed ACI Access Control Instruction string can trigger heap-buffer-overflow writes and reads during ACI parsing. The function fails to validate that the ACI keyword has sufficient length after...

DEBIAN-CVE-2026-12528

A flaw was found in 389 Directory Server in the aclpnormalizeacltxt function of aclparse.c. A malformed ACI Access Control Instruction string can trigger heap-buffer-overflow writes and reads during ACI parsing. The function fails to validate that the ACI keyword has sufficient length after...

UBUNTU-CVE-2026-12528

A flaw was found in 389 Directory Server in the aclpnormalizeacltxt function of aclparse.c. A malformed ACI Access Control Instruction string can trigger heap-buffer-overflow writes and reads during ACI parsing. The function fails to validate that the ACI keyword has sufficient length after...

CVE-2026-12528

A flaw was found in 389 Directory Server in the aclpnormalizeacltxt function of aclparse.c. A malformed ACI Access Control Instruction string can trigger heap-buffer-overflow writes and reads during ACI parsing. The function fails to validate that the ACI keyword has sufficient length after...

CVE-2026-12528

A flaw was found in 389 Directory Server in the aclpnormalizeacltxt function of aclparse.c. A malformed ACI Access Control Instruction string can trigger heap-buffer-overflow writes and reads during ACI parsing. The function fails to validate that the ACI keyword has sufficient length after...

CVE-2026-12528 389-ds-base: 389-ds-base: heap-buffer-overflows in __aclp__normalize_acltxt()

A flaw was found in 389 Directory Server in the aclpnormalizeacltxt function of aclparse.c. A malformed ACI Access Control Instruction string can trigger heap-buffer-overflow writes and reads during ACI parsing. The function fails to validate that the ACI keyword has sufficient length after...

CVE-2026-12528

Affected software/component: 389 Directory Server, in function __aclp__normalize_acltxt() of aclparse.c. Issue: malformed ACI strings can trigger heap-buffer-overflow writes and reads during ACI parsing; the keyword length after whitespace stripping is not validated, causing 1-byte out-of-bounds ...

CVE-2026-12528

A flaw was found in 389 Directory Server in the aclpnormalizeacltxt function of aclparse.c. A malformed ACI Access Control Instruction string can trigger heap-buffer-overflow writes and reads during ACI parsing. The function fails to validate that the ACI keyword has sufficient length after...

CVE-2026-12528 389-ds-base: 389-ds-base: heap-buffer-overflows in __aclp__normalize_acltxt()

A flaw was found in 389 Directory Server in the aclpnormalizeacltxt function of aclparse.c. A malformed ACI Access Control Instruction string can trigger heap-buffer-overflow writes and reads during ACI parsing. The function fails to validate that the ACI keyword has sufficient length after...

EUVD-2026-37728

A flaw was found in 389 Directory Server in the aclpnormalizeacltxt function of aclparse.c. A malformed ACI Access Control Instruction string can trigger heap-buffer-overflow writes and reads during ACI parsing. The function fails to validate that the ACI keyword has sufficient length after...

Important: Red Hat Security Advisory: redhat-ds:12 security update

An update for the redhat-ds:12 module is now available for Red Hat Directory Server 12.4 E4S for RHEL 9. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is...

389-ds-base: 389-ds-base: unbounded LDAP controls count in get_ldapmessage_controls_ext() causes CPU and heap amplification (remote DoS)

A flaw was found in 389-ds-base. The getldapmessagecontrolsext function in the LDAP server does not enforce an upper bound on the number of controls per LDAP message. A remote, unauthenticated attacker can send a specially crafted LDAP request containing hundreds of thousands of minimal controls...