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    CVE-2011-4577

    OpenSSL before 0.9.8s and 1.x before 1.0.0f, when RFC 3779 support is enabled, allows remote attackers to cause a denial of service (assertion failure) via an X.509 certificate containing certificate-extension data associated with (1) IP address blocks or (2) Autonomous System (AS) identifiers.

    Published:Jan 4, 2012
    Last Modified:Apr 11, 2025
    EPS:Jan 6, 2012
    EPSS Score:0.02057
    CVSS Score:4.3

    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

    Related CVEs

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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…
    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…
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    References

    http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c03360041
    http://lists.apple.com/archives/security-announce/2013/Jun/msg00000.html
    http://lists.fedoraproject.org/pipermail/package-announce/2012-November/092905.html
    http://lists.opensuse.org/opensuse-security-announce/2012-01/msg00017.html
    http://lists.opensuse.org/opensuse-security-announce/2012-01/msg00018.html
    http://marc.info/?l=bugtraq&m=132750648501816&w=2
    http://marc.info/?l=bugtraq&m=134039053214295&w=2
    http://secunia.com/advisories/57353
    http://support.apple.com/kb/HT5784
    http://www-01.ibm.com/support/docview.wss?uid=ssg1S1004564
    http://www.kb.cert.org/vuls/id/737740
    http://www.openssl.org/news/secadv_20120104.txt
    http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c03360041
    http://lists.apple.com/archives/security-announce/2013/Jun/msg00000.html
    http://lists.fedoraproject.org/pipermail/package-announce/2012-November/092905.html
    http://lists.opensuse.org/opensuse-security-announce/2012-01/msg00017.html
    http://lists.opensuse.org/opensuse-security-announce/2012-01/msg00018.html
    http://marc.info/?l=bugtraq&m=132750648501816&w=2
    http://marc.info/?l=bugtraq&m=134039053214295&w=2
    http://secunia.com/advisories/57353
    http://support.apple.com/kb/HT5784
    http://www-01.ibm.com/support/docview.wss?uid=ssg1S1004564
    http://www.kb.cert.org/vuls/id/737740
    http://www.openssl.org/news/secadv_20120104.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