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    CVE-2015-0207

    The dtls1_listen function in d1_lib.c in OpenSSL 1.0.2 before 1.0.2a does not properly isolate the state information of independent data streams, which allows remote attackers to cause a denial of service (application crash) via crafted DTLS traffic, as demonstrated by DTLS 1.0 traffic to a DTLS 1.2 server.

    Published:Mar 19, 2015
    Last Modified:Apr 12, 2025
    EPS:Mar 19, 2015
    EPSS Score:0.12304
    CVSS Score:5

    Affected Products

    Vendor
    Openssl
    Product
    Openssl

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-822 Untrusted Pointer Dereference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-129 Pointer Manipulation

    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://marc.info/?l=bugtraq&m=143748090628601&w=2
    http://marc.info/?l=bugtraq&m=144050155601375&w=2
    http://marc.info/?l=bugtraq&m=144050297101809&w=2
    http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
    http://www.oracle.com/technetwork/topics/security/bulletinapr2015-2511959.html
    http://www.oracle.com/technetwork/topics/security/cpujan2016-2367955.html
    http://www.oracle.com/technetwork/topics/security/cpujul2015-2367936.html
    http://www.oracle.com/technetwork/topics/security/cpuoct2015-2367953.html
    http://www.securityfocus.com/bid/73229
    http://www.securitytracker.com/id/1031929
    https://bto.bluecoat.com/security-advisory/sa92
    https://bugzilla.redhat.com/show_bug.cgi?id=1202351
    https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf
    https://git.openssl.org/?p=openssl.git%3Ba=commit%3Bh=819418110b6fff4a7b96f01a5d68f71df3e3b736
    https://kc.mcafee.com/corporate/index?page=content&id=SB10110
    https://security.gentoo.org/glsa/201503-11
    https://www.openssl.org/news/secadv_20150319.txt
    http://marc.info/?l=bugtraq&m=143748090628601&w=2
    http://marc.info/?l=bugtraq&m=144050155601375&w=2
    http://marc.info/?l=bugtraq&m=144050297101809&w=2
    http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
    http://www.oracle.com/technetwork/topics/security/bulletinapr2015-2511959.html
    http://www.oracle.com/technetwork/topics/security/cpujan2016-2367955.html
    http://www.oracle.com/technetwork/topics/security/cpujul2015-2367936.html
    http://www.oracle.com/technetwork/topics/security/cpuoct2015-2367953.html
    http://www.securityfocus.com/bid/73229
    http://www.securitytracker.com/id/1031929
    https://bto.bluecoat.com/security-advisory/sa92
    https://bugzilla.redhat.com/show_bug.cgi?id=1202351
    https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf
    https://git.openssl.org/?p=openssl.git%3Ba=commit%3Bh=819418110b6fff4a7b96f01a5d68f71df3e3b736
    https://kc.mcafee.com/corporate/index?page=content&id=SB10110
    https://security.gentoo.org/glsa/201503-11
    https://www.openssl.org/news/secadv_20150319.txt

    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