6.4

CVE-2026-12610

Sssd: use-after-free crash in sssd' 'sssd_pam' process

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
FedoraprojectSssd Version-
RedhatEnterprise Linux Version8.0
RedhatEnterprise Linux Version9.0
RedhatEnterprise Linux Version10.0
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.16% 0.05
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
secalert@redhat.com 6.4 0.5 5.9
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
CWE-825 Expired Pointer Dereference

The product dereferences a pointer that contains a location for memory that was previously valid, but is no longer valid.

https://access.redhat.com/security/cve/CVE-2026-12610
Vendor Advisory
Mitigation
https://bugzilla.redhat.com/show_bug.cgi?id=2490288
Vendor Advisory
https://github.com/SSSD/sssd/issues/8796
Issue Tracking
Mitigation