CVE-2026-6245 | BDVDB-2026-327192 Detail

Description#

A flaw was found in the System Security Services Daemon (SSSD). The pam_passkey_child_read_data() function within the PAM passkey responder fails to properly handle raw bytes received from a pipe. Because the data is treated as a NUL-terminated C string without explicit termination, it results in an out-of-bounds read when processed by functions like snprintf(). A local attacker could potentially trigger this vulnerability by initiating a crafted passkey authentication request, causing the SSSD PAM responder to crash, resulting in a local Denial of Service (DoS).

Impact#

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References#

Exploit#

History#

1. Version 12026-04-15Record published in the CVE List.
2. Version 22026-11-10Most recent update recorded in the CVE List.