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    CVE-2012-0884

    The implementation of Cryptographic Message Syntax (CMS) and PKCS #7 in OpenSSL before 0.9.8u and 1.x before 1.0.0h does not properly restrict certain oracle behavior, which makes it easier for context-dependent attackers to decrypt data via a Million Message Attack (MMA) adaptive chosen ciphertext attack.

    Published:Mar 12, 2012
    Last Modified:Apr 11, 2025
    EPS:Mar 13, 2012
    EPSS Score:0.03127
    CVSS Score:5

    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

    Exploits

    No exploit reference

    Common Weakness Enumeration

    No CWE recorded yet

    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://lists.fedoraproject.org/pipermail/package-announce/2012-April/077086.html
    http://lists.fedoraproject.org/pipermail/package-announce/2012-April/077221.html
    http://lists.fedoraproject.org/pipermail/package-announce/2012-April/077666.html
    http://lists.fedoraproject.org/pipermail/package-announce/2012-November/092905.html
    http://marc.info/?l=bugtraq&m=133728068926468&w=2
    http://marc.info/?l=bugtraq&m=133951357207000&w=2
    http://marc.info/?l=bugtraq&m=134039053214295&w=2
    http://rhn.redhat.com/errata/RHSA-2012-0426.html
    http://rhn.redhat.com/errata/RHSA-2012-0488.html
    http://rhn.redhat.com/errata/RHSA-2012-0531.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/48580
    http://secunia.com/advisories/48895
    http://secunia.com/advisories/48916
    http://secunia.com/advisories/57353
    http://www-01.ibm.com/support/docview.wss?uid=ssg1S1004564
    http://www.debian.org/security/2012/dsa-2454
    http://www.kb.cert.org/vuls/id/737740
    http://www.openssl.org/news/secadv_20120312.txt
    https://downloads.avaya.com/css/P8/documents/100162507
    https://hermes.opensuse.org/messages/14330767
    http://lists.fedoraproject.org/pipermail/package-announce/2012-April/077086.html
    http://lists.fedoraproject.org/pipermail/package-announce/2012-April/077221.html
    http://lists.fedoraproject.org/pipermail/package-announce/2012-April/077666.html
    http://lists.fedoraproject.org/pipermail/package-announce/2012-November/092905.html
    http://marc.info/?l=bugtraq&m=133728068926468&w=2
    http://marc.info/?l=bugtraq&m=133951357207000&w=2
    http://marc.info/?l=bugtraq&m=134039053214295&w=2
    http://rhn.redhat.com/errata/RHSA-2012-0426.html
    http://rhn.redhat.com/errata/RHSA-2012-0488.html
    http://rhn.redhat.com/errata/RHSA-2012-0531.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/48580
    http://secunia.com/advisories/48895
    http://secunia.com/advisories/48916
    http://secunia.com/advisories/57353
    http://www-01.ibm.com/support/docview.wss?uid=ssg1S1004564
    http://www.debian.org/security/2012/dsa-2454
    http://www.kb.cert.org/vuls/id/737740
    http://www.openssl.org/news/secadv_20120312.txt
    https://downloads.avaya.com/css/P8/documents/100162507
    https://hermes.opensuse.org/messages/14330767

    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