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    CVE-2013-6450

    The DTLS retransmission implementation in OpenSSL 1.0.0 before 1.0.0l and 1.0.1 before 1.0.1f does not properly maintain data structures for digest and encryption contexts, which might allow man-in-the-middle attackers to trigger the use of a different context and cause a denial of service (application crash) by interfering with packet delivery, related to ssl/d1_both.c and ssl/t1_enc.c.

    Published:Dec 19, 2013
    Last Modified:Apr 11, 2025
    EPS:Jan 1, 2014
    EPSS Score:0.27726
    CVSS Score:5.8

    Affected Products

    Vendor
    Openssl
    Product
    Openssl
    Vendor
    Redhat
    Product
    Enterprise Linux

    Exploits

    No exploit reference

    Common Weakness Enumeration

    No CWE recorded yet

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

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    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…
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    References

    http://git.openssl.org/gitweb/?p=openssl.git%3Ba=commit%3Bh=34628967f1e65dc8f34e000f0f5518e21afbfc7b
    http://lists.fedoraproject.org/pipermail/package-announce/2014-August/136470.html
    http://lists.fedoraproject.org/pipermail/package-announce/2014-August/136473.html
    http://lists.opensuse.org/opensuse-updates/2014-01/msg00031.html
    http://lists.opensuse.org/opensuse-updates/2014-01/msg00032.html
    http://rhn.redhat.com/errata/RHSA-2014-0015.html
    http://seclists.org/fulldisclosure/2014/Dec/23
    http://security.gentoo.org/glsa/glsa-201412-39.xml
    http://www-01.ibm.com/support/docview.wss?uid=isg400001841
    http://www-01.ibm.com/support/docview.wss?uid=isg400001843
    http://www.debian.org/security/2014/dsa-2833
    http://www.openssl.org/news/vulnerabilities.html
    http://www.oracle.com/technetwork/topics/security/cpujan2015-1972971.html
    http://www.oracle.com/technetwork/topics/security/cpujul2014-1972956.html
    http://www.securityfocus.com/archive/1/534161/100/0/threaded
    http://www.securityfocus.com/bid/64618
    http://www.securitytracker.com/id/1029549
    http://www.securitytracker.com/id/1031594
    http://www.ubuntu.com/usn/USN-2079-1
    http://www.vmware.com/security/advisories/VMSA-2014-0012.html
    https://puppet.com/security/cve/cve-2013-6450
    https://security-tracker.debian.org/tracker/CVE-2013-6450
    http://git.openssl.org/gitweb/?p=openssl.git%3Ba=commit%3Bh=34628967f1e65dc8f34e000f0f5518e21afbfc7b
    http://lists.fedoraproject.org/pipermail/package-announce/2014-August/136470.html
    http://lists.fedoraproject.org/pipermail/package-announce/2014-August/136473.html
    http://lists.opensuse.org/opensuse-updates/2014-01/msg00031.html
    http://lists.opensuse.org/opensuse-updates/2014-01/msg00032.html
    http://rhn.redhat.com/errata/RHSA-2014-0015.html
    http://seclists.org/fulldisclosure/2014/Dec/23
    http://security.gentoo.org/glsa/glsa-201412-39.xml
    http://www-01.ibm.com/support/docview.wss?uid=isg400001841
    http://www-01.ibm.com/support/docview.wss?uid=isg400001843
    http://www.debian.org/security/2014/dsa-2833
    http://www.openssl.org/news/vulnerabilities.html
    http://www.oracle.com/technetwork/topics/security/cpujan2015-1972971.html
    http://www.oracle.com/technetwork/topics/security/cpujul2014-1972956.html
    http://www.securityfocus.com/archive/1/534161/100/0/threaded
    http://www.securityfocus.com/bid/64618
    http://www.securitytracker.com/id/1029549
    http://www.securitytracker.com/id/1031594
    http://www.ubuntu.com/usn/USN-2079-1
    http://www.vmware.com/security/advisories/VMSA-2014-0012.html
    https://puppet.com/security/cve/cve-2013-6450
    https://security-tracker.debian.org/tracker/CVE-2013-6450

    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