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.
Metrics
Affected Vendors & Products
References
History
Wed, 01 Jul 2026 10:30:00 +0000
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| First Time appeared |
Redhat hardened Images
Redhat openshift Container Platform Sssd Sssd sssd |
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| Vendors & Products |
Redhat hardened Images
Redhat openshift Container Platform Sssd Sssd sssd |
Tue, 30 Jun 2026 13:30:00 +0000
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| Metrics |
ssvc
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Tue, 30 Jun 2026 12:15:00 +0000
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| References |
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| Metrics |
threat_severity
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threat_severity
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Tue, 30 Jun 2026 09:45:00 +0000
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| Description | 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. | |
| Title | Sssd: use-after-free crash in sssd' 'sssd_pam' process | |
| First Time appeared |
Redhat
Redhat enterprise Linux Redhat hummingbird Redhat openshift |
|
| Weaknesses | CWE-825 | |
| CPEs | cpe:/a:redhat:hummingbird:1 cpe:/a:redhat:openshift:4 cpe:/o:redhat:enterprise_linux:10 cpe:/o:redhat:enterprise_linux:6 cpe:/o:redhat:enterprise_linux:7 cpe:/o:redhat:enterprise_linux:8 cpe:/o:redhat:enterprise_linux:9 |
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| Vendors & Products |
Redhat
Redhat enterprise Linux Redhat hummingbird Redhat openshift |
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| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: redhat
Published: 2026-06-30T08:27:01.504Z
Updated: 2026-06-30T15:20:29.634Z
Reserved: 2026-06-18T11:34:05.237Z
Link: CVE-2026-12610
Updated: 2026-06-30T12:44:26.238Z
No data.