openssl: invalid pointer dereference in CMP server via crafted protectionAlg

A flaw was found in OpenSSL. A crafted CMP Certificate Management Protocol message can cause an invalid pointer dereference due to a missing type check in the password-based protection verification. A remote, unauthenticated attacker can crash applications acting as a CMP server or client,...

UBUNTU-CVE-2026-63076

Issue summary: OpenSSL CMP password based protection verification only checks whether the protectionAlg parameter was not NULL and not its ASN.1 type, before treating it as a PBMParameter. A crafted message can contain a parameter of a different type, which is then dereferenced as an invalid...

CVE-2026-63076

Issue summary: OpenSSL CMP password based protection verification only checks whether the protectionAlg parameter was not NULL and not its ASN.1 type, before treating it as a PBMParameter. A crafted message can contain a parameter of a different type, which is then dereferenced as an invalid...

OpenSSL -- Multiple vulnerabilities

The OpenSSL poject reports: Heap Buffer Overflow in CMS Key Unwrapping CVE-2026-63072 Moderate Invalid Pointer Dereference in CMP Server via Crafted protectionAlg CVE-2026-63076 Moderate RPK Server Signature Algorithm Selection Can Dereference a Missing Certificate CVE-2026-14457 Low Excessive...

Invalid Pointer Dereference in CMP Server via Crafted protectionAlg

Issue summary: OpenSSL CMP password based protection verification only checks whether the protectionAlg parameter was not NULL and not its ASN.1 type, before treating it as a PBMParameter. A crafted message can contain a parameter of a different type, which is then dereferenced as an invalid...