CVE-2026-104043
No fix known EPSS <1%CVSS 5.5
A flaw was found in SSSD. A local attacker with access to the Name Service Switch (NSS) responder UNIX socket can trigger an integer underflow by sending a specially crafted request with an undersized packet header. This issue causes an out-of-bounds memory read during packet parsing, crashing the responder process and resulting in a Denial of Service (DoS).
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 |
| 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 |