CVE-2026-68744

Description

A flaw was found in SSSD. The sss_nss_protocol_fill_initgr() function in the NSS responder pre-allocates reply space for all group entries but does not shrink the packet when groups are skipped, causing uninitialized heap bytes to be transmitted to the client. A local attacker can exploit this to disclose cached directory data and heap layout information from the sssd_nss process.

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Produits concernés

• Red Hat Enterprise Linux 10
• Red Hat Enterprise Linux 6
• Red Hat Enterprise Linux 7
• Red Hat Enterprise Linux 8
• Red Hat Enterprise Linux 9
• Red Hat OpenShift Container Platform 4
• Fedoraproject sssd
• Redhat openshift container platform
• Redhat enterprise linux

Scores CVSS

Faiblesses (CWE)

• CWE-908

Références

• https://access.redhat.com/security/cve/CVE-2026-68744 Vendor Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=2509761 Issue TrackingVendor Advisory

Ailleurs

• NVD
• CVE.org
• CIRCL Vulnerability-Lookup
• CERT-FR
• GitHub Advisories