CVE-2026-11610highCWE-122

CVE-2026-11610: falha de alta gravidade em 389ds 389-ds-base

389-ds-base: 389-ds-base: heap buffer overflow in sasl_io_recv() via padded sasl unbind

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21Vexday Risk Score

Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.

ssvc Trackcvss 8.8epss 0.5%
A heap buffer overflow flaw was found in the SASL I/O layer of 389 Directory Server (389-ds-base). After a successful SASL bind with integrity protection (SSF > 0), an authenticated attacker can send a specially crafted oversized LDAP UNBIND packet that is copied into a 512-byte heap receive buffer without a bounds check in sasl_io_recv() in sasl_io.c. This allows up to approximately 2 megabytes of attacker-controlled data to overflow the buffer, causing a denial of service (server crash). In FreeIPA and Red Hat Identity Management deployments, any domain user with a valid Kerberos ticket, any enrolled host, or any service account can trigger this vulnerability over the network after authenticating via GSSAPI. The vulnerable code path has existed since approximately 2013 (389-ds-base 1.3.2) and was not addressed by the CVE-2025-14905 fix, which patched a separate heap overflow in schema.c only.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Produtos afetados
389ds · 389-ds-baseRed Hat · Red Hat Directory Server 11.5 E4S for RHEL 8Red 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 Support
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