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    CVE-2012-2333

    Integer underflow in OpenSSL before 0.9.8x, 1.0.0 before 1.0.0j, and 1.0.1 before 1.0.1c, when TLS 1.1, TLS 1.2, or DTLS is used with CBC encryption, allows remote attackers to cause a denial of service (buffer over-read) or possibly have unspecified other impact via a crafted TLS packet that is not properly handled during a certain explicit IV calculation.

    Published:May 10, 2012
    Last Modified:Apr 11, 2025
    EPS:May 14, 2012
    EPSS Score:0.13402
    CVSS Score:6.8

    Affected Products

    Vendor
    Openssl
    Product
    Openssl
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Redhat
    Product
    Jboss Enterprise Application Platform
    Vendor
    Redhat
    Product
    Jboss Enterprise Web Server
    Vendor
    Redhat
    Product
    Openssl

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-190 Integer Overflow or Wraparound

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-92 Forced Integer Overflow

    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://cvs.openssl.org/chngview?cn=22538
    http://cvs.openssl.org/chngview?cn=22547
    http://lists.apple.com/archives/security-announce/2013/Jun/msg00000.html
    http://lists.fedoraproject.org/pipermail/package-announce/2012-May/081460.html
    http://lists.fedoraproject.org/pipermail/package-announce/2012-November/092905.html
    http://lists.opensuse.org/opensuse-security-announce/2012-05/msg00019.html
    http://lists.opensuse.org/opensuse-security-announce/2012-05/msg00020.html
    http://marc.info/?l=bugtraq&m=134919053717161&w=2
    http://marc.info/?l=bugtraq&m=136432043316835&w=2
    http://rhn.redhat.com/errata/RHSA-2012-0699.html
    http://rhn.redhat.com/errata/RHSA-2012-1306.html
    http://rhn.redhat.com/errata/RHSA-2012-1307.html
    http://rhn.redhat.com/errata/RHSA-2012-1308.html
    http://secunia.com/advisories/49116
    http://secunia.com/advisories/49208
    http://secunia.com/advisories/49324
    http://secunia.com/advisories/50768
    http://secunia.com/advisories/51312
    http://support.apple.com/kb/HT5784
    http://www.cert.fi/en/reports/2012/vulnerability641549.html
    http://www.debian.org/security/2012/dsa-2475
    http://www.kb.cert.org/vuls/id/737740
    http://www.mandriva.com/security/advisories?name=MDVSA-2012:073
    http://www.openssl.org/news/secadv_20120510.txt
    http://www.securityfocus.com/bid/53476
    http://www.securitytracker.com/id?1027057
    https://bugzilla.redhat.com/show_bug.cgi?id=820686
    https://exchange.xforce.ibmcloud.com/vulnerabilities/75525
    http://cvs.openssl.org/chngview?cn=22538
    http://cvs.openssl.org/chngview?cn=22547
    http://lists.apple.com/archives/security-announce/2013/Jun/msg00000.html
    http://lists.fedoraproject.org/pipermail/package-announce/2012-May/081460.html
    http://lists.fedoraproject.org/pipermail/package-announce/2012-November/092905.html
    http://lists.opensuse.org/opensuse-security-announce/2012-05/msg00019.html
    http://lists.opensuse.org/opensuse-security-announce/2012-05/msg00020.html
    http://marc.info/?l=bugtraq&m=134919053717161&w=2
    http://marc.info/?l=bugtraq&m=136432043316835&w=2
    http://rhn.redhat.com/errata/RHSA-2012-0699.html
    http://rhn.redhat.com/errata/RHSA-2012-1306.html
    http://rhn.redhat.com/errata/RHSA-2012-1307.html
    http://rhn.redhat.com/errata/RHSA-2012-1308.html
    http://secunia.com/advisories/49116
    http://secunia.com/advisories/49208
    http://secunia.com/advisories/49324
    http://secunia.com/advisories/50768
    http://secunia.com/advisories/51312
    http://support.apple.com/kb/HT5784
    http://www.cert.fi/en/reports/2012/vulnerability641549.html
    http://www.debian.org/security/2012/dsa-2475
    http://www.kb.cert.org/vuls/id/737740
    http://www.mandriva.com/security/advisories?name=MDVSA-2012:073
    http://www.openssl.org/news/secadv_20120510.txt
    http://www.securityfocus.com/bid/53476
    http://www.securitytracker.com/id?1027057
    https://bugzilla.redhat.com/show_bug.cgi?id=820686
    https://exchange.xforce.ibmcloud.com/vulnerabilities/75525

    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