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).

INFO

Published Date :

2026-04-15T18:35:19.401Z

Last Modified :

2026-04-15T20:01:50.488Z

Source :

redhat
AFFECTED PRODUCTS

The following products are affected by CVE-2026-6245 vulnerability.

Vendors Products
Redhat
  • Enterprise Linux
  • Openshift
  • Openshift Container Platform
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-6245.

URL Resource
https://access.redhat.com/security/cve/CVE-2026-6245 cve-icon cve-icon
https://bugzilla.redhat.com/show_bug.cgi?id=2457954 cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2026-6245 cve-icon
https://www.cve.org/CVERecord?id=CVE-2026-6245 cve-icon
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