PT-2026-56194 · Red Hat · Red Hat Directory Server 11+7

Publicado 2026-07-07 · Atualizado 2026-07-07 · CVE-2026-14940

Mitre

CVSS v3.1

5.3

Média

Vetor base

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

A heap-buffer-overflow flaw was found in 389 Directory Server (389-ds-base). When normalizing a Distinguished Name (DN) that contains a legacy-quoted value encoding a multivalued nested Relative Distinguished Name (RDN), the server can write past the end of a heap allocation while sorting RDN attribute-value pairs. An unauthenticated remote attacker can trigger this condition by sending an LDAP operation whose DN reaches the DN normalization routine, such as a search with a crafted base DN. This can corrupt heap memory and may cause denial of service.

Correção

Heap Based Buffer Overflow

Enumeração de Fraquezas

CWE-122

Identificadores relacionados

CVE-2026-14940

Produtos afetados

Red Hat Directory Server 11

Red Hat Directory Server 12

Red Hat Directory Server 13

Red Hat Enterprise Linux 10

Red Hat Enterprise Linux 6

Red Hat Enterprise Linux 7

Red Hat Enterprise Linux 8

Red Hat Enterprise Linux 9

Referências · 3

• https://access.redhat.com/security/cve/CVE-2026-14940 · Nota
• https://nvd.nist.gov/vuln/detail/CVE-2026-14940 · Nota de Segurança
• https://bugzilla.redhat.com/show_bug.cgi?id=2497697 · Nota