FIPS mode assertion failure via malicious CERT payload

...

CVE-2026-14957

In FIPS mode, Libreswan's adddecodedcert function calls CERTExtractPublicKey and asserts that the result is not NULL. However, CERTExtractPublicKey returns NULL when public key extraction fails, for example if the RSA exponent is set to 0. A remote attacker can send a malformed X.509 certificate ...

CVE-2026-14957 FIPS mode assertion failure via malicious CERT payload

In FIPS mode, Libreswan's adddecodedcert function calls CERTExtractPublicKey and asserts that the result is not NULL. However, CERTExtractPublicKey returns NULL when public key extraction fails, for example if the RSA exponent is set to 0. A remote attacker can send a malformed X.509 certificate ...

CVE-2026-14957

CVE-2026-14957 is a denial-of-service vulnerability in Libreswan (an IPsec/IKE implementation for Linux). In FIPS mode , the add_decoded_cert() function calls CERT_ExtractPublicKey() and asserts the result is non-NULL. When public key extraction fails (e.g., RSA exponent set to 0), the assertion ...