CVE-2026-68742
Fixed in a distro release EPSS <1%CVSS 5.5
A flaw was found in SSSD. The sss_nss_protocol_parse_addr() function in the NSS responder does not validate the addrlen field against the remaining packet body size. A local attacker can exploit this via a crafted GETHOSTBYADDR request to the NSS responder socket, causing an out-of-bounds read and process crash, resulting in a denial of service.
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 |