Buffer Access with Incorrect Length Value Affecting sssd-ldap package, versions *


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

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  • Snyk IDSNYK-RHEL7-SSSDLDAP-16093510
  • published17 Apr 2026
  • disclosed15 Apr 2026

Introduced: 15 Apr 2026

NewCVE-2026-6245  (opens in a new tab)
CWE-805  (opens in a new tab)

How to fix?

There is no fixed version for RHEL:7 sssd-ldap.

NVD Description

Note: Versions mentioned in the description apply only to the upstream sssd-ldap package and not the sssd-ldap package as distributed by RHEL. See How to fix? for RHEL:7 relevant fixed versions and status.

A flaw was found in the System Security Services Daemon (SSSD). The pam_passkey_child_read_data() function within the PAM passkey responder fails to properly handle raw bytes received from a pipe. Because the data is treated as a NUL-terminated C string without explicit termination, it results in an out-of-bounds read when processed by functions like snprintf(). A local attacker could potentially trigger this vulnerability by initiating a crafted passkey authentication request, causing the SSSD PAM responder to crash, resulting in a local Denial of Service (DoS).

CVSS Base Scores

version 3.1