CVE-2026-127101 - Sssd: sssd: null pointer dereference in pam responder when protocol version negotiation is skipped

CVE-2026-127101 - Sssd: sssd: null pointer dereference in pam responder when protocol version negotiation is skipped

https://cvefeed.io/rssfeed/latest.atom / Thu, 11/12/2026 - 20:08
CVE ID :CVE-2026-127101
Published : Nov. 12, 2026, 6:17 p.m. | 41 minutes ago
Description :A flaw was found in SSSD's PAM responder. A local attacker can send an authentication request without first negotiating the client protocol version. The responder dereferences a NULL protocol-version pointer and crashes, disrupting SSSD-backed authentication. Repeated crafted requests can sustain the denial of service.
Severity: 5.5 | MEDIUM
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Kenya Education Network CERT(KENET-CERT) is a Cybersecurity Emergency Response Team and Co-ordination Center operated by the National Research and Education Network of Kenya. KENET-CERT coordination center promotes awareness on cybersecurity incidences as well as coordinates and assists member institutions in responding effectively to cyber security threats and incidences. KENET-CERT works closely with Kenya's National CIRT coordination center (CIRT/CC) as a sector CIRT for the academic institutions. KENET promotes use of ICT in Teaching, Learning and Research in Higher Education Institutions in Kenya. KENET aims to interconnect all the Universities, Tertiary and Research Institutions in Kenya by setting up a cost effective and sustainable private network with high speed access to the global Internet. KENET also facilitates electronic communication among students and faculties in member institutions, share learning and teaching resources by collaboration in Research and Development of Educational content.