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    CVE-2012-2131

    Multiple integer signedness errors in crypto/buffer/buffer.c in OpenSSL 0.9.8v allow remote attackers to conduct buffer overflow attacks, and cause a denial of service (memory corruption) or possibly have unspecified other impact, via crafted DER data, as demonstrated by an X.509 certificate or an RSA public key. NOTE: this vulnerability exists because of an incomplete fix for CVE-2012-2110.

    Published:Apr 23, 2012
    Last Modified:Apr 11, 2025
    EPS:Apr 24, 2012
    EPSS Score:0.05695
    CVSS Score:7.5

    Affected Products

    Vendor
    Openssl
    Product
    Openssl

    Exploits

    https://www.exploit-db.com/exploits/18756

    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://cvs.openssl.org/chngview?cn=22479
    http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10673
    http://lists.apple.com/archives/security-announce/2013/Jun/msg00000.html
    http://lists.opensuse.org/opensuse-security-announce/2012-05/msg00014.html
    http://lists.opensuse.org/opensuse-security-announce/2012-05/msg00015.html
    http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00007.html
    http://marc.info/?l=bugtraq&m=133728068926468&w=2
    http://marc.info/?l=bugtraq&m=134039053214295&w=2
    http://secunia.com/advisories/48895
    http://secunia.com/advisories/48956
    http://secunia.com/advisories/57353
    http://support.apple.com/kb/HT5784
    http://www-01.ibm.com/support/docview.wss?uid=ssg1S1004564
    http://www.debian.org/security/2012/dsa-2454
    http://www.mandriva.com/security/advisories?name=MDVSA-2012:064
    http://www.openssl.org/news/secadv_20120424.txt
    http://www.openwall.com/lists/oss-security/2012/04/24/1
    http://www.securityfocus.com/bid/53212
    http://www.securitytracker.com/id?1026957
    http://www.ubuntu.com/usn/USN-1428-1
    https://exchange.xforce.ibmcloud.com/vulnerabilities/75099
    http://cvs.openssl.org/chngview?cn=22479
    http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10673
    http://lists.apple.com/archives/security-announce/2013/Jun/msg00000.html
    http://lists.opensuse.org/opensuse-security-announce/2012-05/msg00014.html
    http://lists.opensuse.org/opensuse-security-announce/2012-05/msg00015.html
    http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00007.html
    http://marc.info/?l=bugtraq&m=133728068926468&w=2
    http://marc.info/?l=bugtraq&m=134039053214295&w=2
    http://secunia.com/advisories/48895
    http://secunia.com/advisories/48956
    http://secunia.com/advisories/57353
    http://support.apple.com/kb/HT5784
    http://www-01.ibm.com/support/docview.wss?uid=ssg1S1004564
    http://www.debian.org/security/2012/dsa-2454
    http://www.mandriva.com/security/advisories?name=MDVSA-2012:064
    http://www.openssl.org/news/secadv_20120424.txt
    http://www.openwall.com/lists/oss-security/2012/04/24/1
    http://www.securityfocus.com/bid/53212
    http://www.securitytracker.com/id?1026957
    http://www.ubuntu.com/usn/USN-1428-1
    https://exchange.xforce.ibmcloud.com/vulnerabilities/75099

    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