CVE-2026-68744
Fixed in a distro release EPSS <1%CVSS 3.3
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.
Products: 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
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Debian 12 | sssd | no fix |
| Debian 13 | sssd | no fix |
| SUSE Linux Enterprise Module for Basesystem 15 SP7 | sssd | 2.10.2-150700.9.40.1 |
| SUSE Linux Enterprise Server 16.0 | sssd | 2.10.2-160000.5.1 |
| SUSE Linux Enterprise Server for SAP applications 16.0 | sssd | 2.10.2-160000.5.1 |
| SUSE Linux Micro 6.0 | sssd | 2.8.2-10.1 |
| SUSE Linux Micro 6.1 | sssd | 2.9.5-slfo.1.1_7.1 |
| SUSE Linux Micro 6.2 | sssd | 2.10.2-160000.5.1 |
| Ubuntu 22.04 LTS | sssd | no fix |
| Ubuntu 24.04 LTS | sssd | no fix |
| Ubuntu 26.04 LTS | sssd | no fix |
| Ubuntu 26.10 | sssd | no fix |
| Ubuntu Pro 16.04 LTS | sssd | no fix |
| Ubuntu Pro 18.04 LTS | sssd | no fix |
| Ubuntu Pro 20.04 LTS | sssd | no fix |
| openSUSE Leap 16.0 | sssd | 2.10.2-160000.5.1 |