Expired Pointer Dereference Affecting sssd package, versions *


Severity

Recommended
0.0
medium
0
10

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.12% (3rd percentile)

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  • Snyk IDSNYK-UBUNTU2604-SSSD-17740449
  • published18 Aug 2026
  • disclosed30 Jun 2026

Introduced: 30 Jun 2026

CVE-2026-12610  (opens in a new tab)
CWE-825  (opens in a new tab)

How to fix?

There is no fixed version for Ubuntu:26.04 sssd.

NVD Description

Note: Versions mentioned in the description apply only to the upstream sssd package and not the sssd package as distributed by Ubuntu. See How to fix? for Ubuntu:26.04 relevant fixed versions and status.

A flaw was found in sssd. When authenticating with a YubiKey, the SSSD PAM responder can crash due to a use-after-free vulnerability, where a memory pointer is incorrectly handled. A local attacker could exploit this flaw by manipulating smartcard or YubiKey contents, leading to a denial of service that disrupts authentication. This vulnerability also presents a potential for privilege escalation, although it is difficult to exploit.

CVSS Base Scores

version 3.1