CVE-2026-89092

CVE-2026-89092 affects the nscd (Name Service Cache Daemon) service in GNU C Library 2.3.4 and later . The root cause is an unbounded alloca call that triggers a stack overflow when a malicious or compromised DNS server returns an excessively large response to a DNS query. The primary impact is a...

CVE-2026-89092 Stack overflow in nscd due to unbounded alloca use

The nscd service in the GNU C Library 2.3.4 onwards may crash due to a stack overflow when a malicious DNS server returns too large a response for a DNS query, resulting in degraded DNS resolution for the system. Exploitation of this bug needs a system that has nscd enabled and using an untrusted...

PT-2026-89678

The nscd service in the GNU C Library 2.3.4 onwards may crash due to a stack overflow when a malicious DNS server returns too large a response for a DNS query, resulting in degraded DNS resolution for the system. Exploitation of this bug needs a system that has nscd enabled and using an untrusted...