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    CVE-2003-0545

    Double free vulnerability in OpenSSL 0.9.7 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via an SSL client certificate with a certain invalid ASN.1 encoding.

    Published:Sep 30, 2003
    Last Modified:Apr 16, 2026
    EPS:Oct 1, 2003
    EPSS Score:0.74574
    CVSS Score:9.8

    Affected Products

    Vendor
    Openssl
    Product
    Openssl
    Vendor
    Redhat
    Product
    Linux

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-415 Double Free

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2026-75803 (CVSS 9.1) — Issue summary: ChaCha20-Poly1305 and AES-OCB decryption with an empty ciphertext can report success without ve…
    CVE-2026-63075 (CVSS 7.5) — Issue summary: When OpenSSL processes QUIC traffic from a peer that repeatedly sends ack-eliciting packets whi…
    CVE-2026-63072 (CVSS 7.5) — Issue summary: OpenSSL CMS decryption sizes the key-unwrap output buffer based on querying the unwrapped key s…
    CVE-2026-54874 (CVSS 7.5) — Issue summary: Receiving a DTLS record for a future epoch while a handshake is in progress causes OpenSSL to b…
    CVE-2026-14457 (CVSS 7.5) — Issue summary: In a server or client configuration with RFC7250 Raw Public Keys (RPKs) enabled, and only the p…
    CVE-2026-63076 (CVSS 7.5) — Issue summary: OpenSSL CMP password based protection verification only checks whether the protectionAlg parame…
    CVE-2026-63074 (CVSS 5.9) — Issue summary: The OpenSSL Certificate Management Protocol (CMP) caches additional certificates (extraCerts) s…
    CVE-2026-63073 (CVSS 9.8) — Issue summary: OpenSSL CMP response validation passed an unexpected response sender distinguished name directl…
    CVE-2026-18798 (CVSS 7.5) — Issue summary: QUIC server may double free QRX (QUIC record layer RX) object when channel creation fails for i…
    CVE-2026-14456 (CVSS 7.5) — Issue summary: When an OpenSSL QUIC server (Listener SSL object) processes valid QUIC Initial packets for unkn…

    References

    http://secunia.com/advisories/22249
    http://www-1.ibm.com/support/docview.wss?uid=swg21247112
    http://www.cert.org/advisories/CA-2003-26.html
    http://www.debian.org/security/2003/dsa-394
    http://www.kb.cert.org/vuls/id/935264
    http://www.redhat.com/support/errata/RHSA-2003-292.html
    http://www.securityfocus.com/bid/8732
    http://www.uniras.gov.uk/vuls/2003/006489/openssl.htm
    http://www.vupen.com/english/advisories/2006/3900
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A2590
    http://secunia.com/advisories/22249
    http://www-1.ibm.com/support/docview.wss?uid=swg21247112
    http://www.cert.org/advisories/CA-2003-26.html
    http://www.debian.org/security/2003/dsa-394
    http://www.kb.cert.org/vuls/id/935264
    http://www.redhat.com/support/errata/RHSA-2003-292.html
    http://www.securityfocus.com/bid/8732
    http://www.uniras.gov.uk/vuls/2003/006489/openssl.htm
    http://www.vupen.com/english/advisories/2006/3900
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A2590

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High