A flaw was found in the System Security Services Daemon (SSSD).
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
What happened
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).
Does it affect you
Not enough information
No products recorded, so this cannot be matched against anything.
What to do
- Follow the vendor advisory for the fixed release and any interim mitigation.
access.redhat.com - Follow the vendor advisory for the fixed release and any interim mitigation.
bugzilla.redhat.com
Vendor's affected list
- rhel
- Exactly 6.0
Sources
A verdict here is derived from what you told us and what the vendor published. It is not an assessment of your environment. Why we never say you are safe.