{
    "CVE_data_meta": {
        "ASSIGNER": "openssl-security@openssl.org",
        "DATE_PUBLIC": "2019-12-06",
        "ID": "CVE-2019-1551",
        "STATE": "PUBLIC",
        "TITLE": "rsaz_512_sqr overflow bug on x86_64"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "product": {
                        "product_data": [
                            {
                                "product_name": "OpenSSL",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_value": "Fixed in OpenSSL 1.1.1e (Affected 1.1.1-1.1.1d)"
                                        },
                                        {
                                            "version_value": "Fixed in OpenSSL 1.0.2u (Affected 1.0.2-1.0.2t)"
                                        }
                                    ]
                                }
                            }
                        ]
                    },
                    "vendor_name": "OpenSSL"
                }
            ]
        }
    },
    "credit": [
        {
            "lang": "eng",
            "value": "OSS-Fuzz and Guido Vranken"
        }
    ],
    "data_format": "MITRE",
    "data_type": "CVE",
    "data_version": "4.0",
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "There is an overflow bug in the x64_64 Montgomery squaring procedure used in exponentiation with 512-bit moduli. No EC algorithms are affected. Analysis suggests that attacks against 2-prime RSA1024, 3-prime RSA1536, and DSA1024 as a result of this defect would be very difficult to perform and are not believed likely. Attacks against DH512 are considered just feasible. However, for an attack the target would have to re-use the DH512 private key, which is not recommended anyway. Also applications directly using the low level API BN_mod_exp may be affected if they use BN_FLG_CONSTTIME. Fixed in OpenSSL 1.1.1e (Affected 1.1.1-1.1.1d). Fixed in OpenSSL 1.0.2u (Affected 1.0.2-1.0.2t)."
            }
        ]
    },
    "impact": [
        {
            "lang": "eng",
            "url": "https://www.openssl.org/policies/secpolicy.html#Low",
            "value": "Low"
        }
    ],
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "Integer overflow bug"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "refsource": "BUGTRAQ",
                "name": "20191225 [slackware-security] openssl (SSA:2019-354-01)",
                "url": "https://seclists.org/bugtraq/2019/Dec/39"
            },
            {
                "refsource": "DEBIAN",
                "name": "DSA-4594",
                "url": "https://www.debian.org/security/2019/dsa-4594"
            },
            {
                "refsource": "BUGTRAQ",
                "name": "20191229 [SECURITY] [DSA 4594-1] openssl1.0 security update",
                "url": "https://seclists.org/bugtraq/2019/Dec/46"
            },
            {
                "refsource": "SUSE",
                "name": "openSUSE-SU-2020:0062",
                "url": "http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00030.html"
            },
            {
                "refsource": "GENTOO",
                "name": "GLSA-202004-10",
                "url": "https://security.gentoo.org/glsa/202004-10"
            },
            {
                "refsource": "FEDORA",
                "name": "FEDORA-2020-fcc91a28e8",
                "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XVEP3LAK4JSPRXFO4QF4GG2IVXADV3SO/"
            },
            {
                "refsource": "FEDORA",
                "name": "FEDORA-2020-da2d1ef2d7",
                "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DDHOAATPWJCXRNFMJ2SASDBBNU5RJONY/"
            },
            {
                "refsource": "FEDORA",
                "name": "FEDORA-2020-d7b29838f6",
                "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/EXDDAOWSAIEFQNBHWYE6PPYFV4QXGMCD/"
            },
            {
                "refsource": "UBUNTU",
                "name": "USN-4376-1",
                "url": "https://usn.ubuntu.com/4376-1/"
            },
            {
                "url": "https://www.oracle.com/security-alerts/cpujul2020.html",
                "refsource": "MISC",
                "name": "https://www.oracle.com/security-alerts/cpujul2020.html"
            },
            {
                "refsource": "CONFIRM",
                "name": "https://www.tenable.com/security/tns-2019-09",
                "url": "https://www.tenable.com/security/tns-2019-09"
            },
            {
                "name": "https://www.openssl.org/news/secadv/20191206.txt",
                "refsource": "CONFIRM",
                "url": "https://www.openssl.org/news/secadv/20191206.txt"
            },
            {
                "name": "https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=419102400a2811582a7a3d4a4e317d72e5ce0a8f",
                "refsource": "CONFIRM",
                "url": "https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=419102400a2811582a7a3d4a4e317d72e5ce0a8f"
            },
            {
                "name": "https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=f1c5eea8a817075d31e43f5876993c6710238c98",
                "refsource": "CONFIRM",
                "url": "https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=f1c5eea8a817075d31e43f5876993c6710238c98"
            },
            {
                "refsource": "CONFIRM",
                "name": "https://security.netapp.com/advisory/ntap-20191210-0001/",
                "url": "https://security.netapp.com/advisory/ntap-20191210-0001/"
            },
            {
                "refsource": "MISC",
                "name": "http://packetstormsecurity.com/files/155754/Slackware-Security-Advisory-openssl-Updates.html",
                "url": "http://packetstormsecurity.com/files/155754/Slackware-Security-Advisory-openssl-Updates.html"
            },
            {
                "refsource": "CONFIRM",
                "name": "https://www.tenable.com/security/tns-2020-03",
                "url": "https://www.tenable.com/security/tns-2020-03"
            },
            {
                "refsource": "UBUNTU",
                "name": "USN-4504-1",
                "url": "https://usn.ubuntu.com/4504-1/"
            },
            {
                "url": "https://www.oracle.com/security-alerts/cpujan2021.html",
                "refsource": "MISC",
                "name": "https://www.oracle.com/security-alerts/cpujan2021.html"
            },
            {
                "refsource": "CONFIRM",
                "name": "https://www.tenable.com/security/tns-2020-11",
                "url": "https://www.tenable.com/security/tns-2020-11"
            },
            {
                "refsource": "DEBIAN",
                "name": "DSA-4855",
                "url": "https://www.debian.org/security/2021/dsa-4855"
            },
            {
                "url": "https://www.oracle.com/security-alerts/cpuApr2021.html",
                "refsource": "MISC",
                "name": "https://www.oracle.com/security-alerts/cpuApr2021.html"
            },
            {
                "refsource": "CONFIRM",
                "name": "https://www.tenable.com/security/tns-2021-10",
                "url": "https://www.tenable.com/security/tns-2021-10"
            },
            {
                "refsource": "MLIST",
                "name": "[debian-lts-announce] 20220317 [SECURITY] [DLA 2952-1] openssl security update",
                "url": "https://lists.debian.org/debian-lts-announce/2022/03/msg00023.html"
            }
        ]
    }
}