CVE-2026-104036 - CERT CVE
ID CVE-2026-104036
Sažetak A flaw was found in SSSD's NFS idmap plugin. When retrieving cached user or group names, the plugin detects if an entry exceeds the destination buffer size but fails to abort before copying data. A local attacker can trigger this vulnerability by requesting identity lookups that resolve to oversized cached entries, resulting in an out-of-bounds write. This flaw primarily leads to a Denial of Service (DoS) by crashing the identity mapping service, and may also corrupt adjacent process memory.
Reference
CVSS
Base: 5.8
Impact: 4.7
Exploitability:1.0
Pristup
VektorSloženostAutentikacija
LOCAL HIGH LOW
Impact
PovjerljivostCjelovitostDostupnost
LOW LOW HIGH
CVSS vektor CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:H
Zadnje važnije ažuriranje 06-10-2026 - 01:16
Objavljeno 06-10-2026 - 01:16