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CVE-2026-11774

389-ds-base: 389-ds-base: integer overflow in sasl packet length bypasses size limit leading to heap buffer overflow

HIGH 7.6

En bref

Source
NVD
EPSS
EPSS 0.68 % · centile 52 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
redhat
Statut NVD
Awaiting Analysis

Description

An integer overflow flaw was found in the SASL I/O layer of 389 Directory Server (389-ds-base). In sasl_io_start_packet(), adding sizeof(uint32_t) to a crafted SASL packet length prefix of 0xFFFFFFFC causes unsigned wraparound to zero, bypassing the nsslapd-maxsasliosize limit and leading to a heap buffer overflow of up to approximately 2 megabytes of attacker-controlled data. After a successful SASL bind with integrity protection (SSF > 0), a remote attacker can cause a Denial of Service (DoS) or achieve Remote Code Execution (RCE). In FreeIPA and Red Hat Identity Management deployments, any domain user with a valid Kerberos ticket, enrolled host, or service account can trigger this vulnerability over the network. This flaw is independent of CVE-2025-14905, which patched schema.c only and did not modify sasl_io.c.

Faiblesses (CWE)

Références

Scores

VersionScoreVecteurÉvalué par
CVSS 3.1HIGH 7.6CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:Hredhat
CVSS 3.1HIGH 7.6CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:Hredhat-SADP
CVSS 3.1HIGH 7.6CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:HNVD · secalert@redhat.com (Secondary)
CVSS 3.1HIGH 7.6CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:HNVD · 0b0ca135-0b70-47e7-9f44-1890c2a1c46c (Secondary)

Références européennes

Produits affectés

ProduitVersions
Red Hat · Red Hat Directory Server 11.5 E4S for RHEL 8unaffected 8060020260702180044.0ca98e7e < *
Red Hat · Red Hat Directory Server 11.7 E4S for RHEL 8unaffected 8080020260702180836.f969626e < *
Red Hat · Red Hat Directory Server 11.9 for RHEL 8unaffected 8100020260702145313.37ed7c03 < *
Red Hat · Red Hat Directory Server 12.2 E4S for RHEL 9unaffected 9020020260703060155.1674d574 < *
Red Hat · Red Hat Directory Server 12.4 E4S for RHEL 9unaffected 9040020260703055735.1674d574 < *
Red Hat · Red Hat Enterprise Linux 10unaffected 0:3.2.0-8.el10_2 < *
Red Hat · Red Hat Enterprise Linux 10.0 Extended Update Supportunaffected 0:3.0.6-19.el10_0 < *
Red Hat · Red Hat Enterprise Linux 7 Extended Lifecycle Supportunaffected 0:1.3.11.1-13.el7_9 < *
Red Hat · Red Hat Enterprise Linux 8unaffected 8100020260626120929.25e700aa < *
Red Hat · Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Supportunaffected 8040020260629123121.96015a92 < *
Red Hat · Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-Onunaffected 8040020260629123121.96015a92 < *
Red Hat · Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Supportunaffected 8060020260626130540.824efc52 < *
Red Hat · Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-Onunaffected 8060020260626130540.824efc52 < *
Red Hat · Red Hat Enterprise Linux 8.8 Telecommunications Update Serviceunaffected 8080020260630025241.6dbb3803 < *
Red Hat · Red Hat Enterprise Linux 8.8 Update Services for SAP Solutionsunaffected 8080020260630025241.6dbb3803 < *
Red Hat · Red Hat Enterprise Linux 9unaffected 0:2.8.0-8.el9_8 < *
Red Hat · Red Hat Enterprise Linux 9.2 Update Services for SAP Solutionsunaffected 0:2.2.4-19.el9_2 < *
Red Hat · Red Hat Enterprise Linux 9.4 Update Services for SAP Solutionsunaffected 0:2.4.5-26.el9_4 < *
Red Hat · Red Hat Enterprise Linux 9.6 Extended Update Supportunaffected 0:2.6.1-22.el9_6 < *
Red Hat · Red Hat Directory Server 13.2unaffected 1783452100 < *

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD