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              "value": "Issue summary: QUIC server may double free QRX (QUIC record layer RX) object\u003cbr\u003ewhen channel creation fails for initial packet.\u003cbr\u003e\u003cbr\u003eImpact summary: Double free leads to heap corruption, which typically results in \u003cbr\u003etermination of QUIC server process, leading to Denial of Service. There is so\u003cbr\u003efar no evidence that this double free is exploitable for remote code execution,\u003cbr\u003ethus it is considered highly improbable.\u003cbr\u003e\u003cbr\u003eCWE: CWE-415: Double Free\u003cbr\u003e\u003cbr\u003eDescription: In order to validate initial packet, OpenSSL QUIC stack default\u003cbr\u003epacket handler (port_default_packet_handler()) creates a so-called QRX object.\u003cbr\u003eIf the initial packet validates successfully with QRX object, the default packet\u003cbr\u003ehandler proceeds to channel (connection object) creation. The QRX object used\u003cbr\u003efor packet validation is passed to port_bind_channel(), so it becomes part of\u003cbr\u003ethe newly created connection. If port_bind_channel() fails, then it also frees\u003cbr\u003ethe QRX object. Once port_bind_channel() returns, the port_default_packet_handler()\u003cbr\u003edetects the failure and proceeds to the error branch, where the same QRX object is\u003cbr\u003efreed for the second time.\u003cbr\u003e\u003cbr\u003eThe failure in port_bind_channel() function can be induced with a relatively\u003cbr\u003elow effort by a malformed (non RFC 9000 compliant) INITIAL packet. If the packet\u003cbr\u003ecarries DCID (destination connection ID) which is shorter than 8 bytes, then\u003cbr\u003eport_bind_channel() jumps to the error path after ossl_quic_lcidm_enrol_odcid()\u003cbr\u003edetects that the DCID has invalid length.\u003cbr\u003e\u003cbr\u003eFIPS impact: no\u003cbr\u003eThe FIPS module is not affected, as the QUIC implementation is outside of\u003cbr\u003ethe OpenSSL FIPS module boundary."
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          "lang": "en",
          "type": "reporter",
          "value": "Ying Dong"
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          "type": "reporter",
          "value": "Bhabani Sankar Das"
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              "value": "Issue summary: OpenSSL CMP password based protection verification only\u003cbr\u003echecks whether the protectionAlg parameter was not NULL and not its\u003cbr\u003eASN.1 type, before treating it as a PBMParameter. A crafted message can\u003cbr\u003econtain a parameter of a different type, which is then dereferenced as an\u003cbr\u003einvalid pointer.\u003cbr\u003e\u003cbr\u003eImpact summary: A remote, unauthenticated attacker can crash an application\u003cbr\u003eacting as a CMP server that accepts PBM-protected messages, or a CMP client\u003cbr\u003etalking to a malicious or intercepted CMP server, resulting in a Denial of\u003cbr\u003eService.\u003cbr\u003e\u003cbr\u003eCWE: CWE-476: NULL Pointer Dereference\u003cbr\u003e\u003cbr\u003eDescription: When verifying the password-based MAC protection of a CMP\u003cbr\u003emessage, OpenSSL library reads the protectionAlg algorithm parameter with\u003cbr\u003eX509_ALGOR_get0(), which returns both the parameter type and its value\u003cbr\u003epointer. The value is then cast to an ASN1_STRING and treated as the\u003cbr\u003eexpected PBMParameter after only checking that pointer is not NULL. The\u003cbr\u003eparameter type returned by X509_ALGOR_get0() was never consulted.\u003cbr\u003e\u003cbr\u003eThis happens during protection verification, before any MAC is computed, so\u003cbr\u003eno knowledge of the PBM shared secret is required; the only precondition is\u003cbr\u003ethat PBM verification is reachable. On the server side this is reached from\u003cbr\u003eOSSL_CMP_SRV_process_request() for any application that stands up a CMP\u003cbr\u003eserver accepting PBM-protected messages, and on the client side from CMP\u003cbr\u003eresponse validation against a malicious or on-path (MITM) server. The\u003cbr\u003ereliable consequence is a denial of service; there is no memory disclosure,\u003cbr\u003eno controlled memory write, and no path to code execution. CMP is a\u003cbr\u003especialized feature that an application must explicitly enable.\u003cbr\u003e\u003cbr\u003eFIPS impact: no\u003cbr\u003eAs the CMP code lives outside the FIPS module boundary, no FIPS modules\u003cbr\u003eare affected by this CVE."
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