GHSA-FCC6-M5V9-XCGQ

Vulnerability from github – Published: 2022-05-24 17:02 – Updated: 2024-04-04 02:42
VLAI?
Details

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-dev (Affected 1.1.1-1.1.1d). Fixed in OpenSSL 1.0.2u-dev (Affected 1.0.2-1.0.2t).

Severity ?
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
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{
  "affected": [],
  "aliases": [
    "CVE-2019-1551"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-190",
      "CWE-200"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2019-12-06T18:15:00Z",
    "severity": "MODERATE"
  },
  "details": "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-dev (Affected 1.1.1-1.1.1d). Fixed in OpenSSL 1.0.2u-dev (Affected 1.0.2-1.0.2t).",
  "id": "GHSA-fcc6-m5v9-xcgq",
  "modified": "2024-04-04T02:42:08Z",
  "published": "2022-05-24T17:02:47Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-1551"
    },
    {
      "type": "WEB",
      "url": "https://www.tenable.com/security/tns-2021-10"
    },
    {
      "type": "WEB",
      "url": "https://www.tenable.com/security/tns-2020-11"
    },
    {
      "type": "WEB",
      "url": "https://www.tenable.com/security/tns-2020-03"
    },
    {
      "type": "WEB",
      "url": "https://www.tenable.com/security/tns-2019-09"
    },
    {
      "type": "WEB",
      "url": "https://www.oracle.com/security-alerts/cpujul2020.html"
    },
    {
      "type": "WEB",
      "url": "https://www.oracle.com/security-alerts/cpujan2021.html"
    },
    {
      "type": "WEB",
      "url": "https://www.oracle.com/security-alerts/cpuApr2021.html"
    },
    {
      "type": "WEB",
      "url": "https://www.openssl.org/news/secadv/20191206.txt"
    },
    {
      "type": "WEB",
      "url": "https://www.debian.org/security/2021/dsa-4855"
    },
    {
      "type": "WEB",
      "url": "https://www.debian.org/security/2019/dsa-4594"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/4504-1"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/4376-1"
    },
    {
      "type": "WEB",
      "url": "https://security.netapp.com/advisory/ntap-20191210-0001"
    },
    {
      "type": "WEB",
      "url": "https://security.gentoo.org/glsa/202004-10"
    },
    {
      "type": "WEB",
      "url": "https://seclists.org/bugtraq/2019/Dec/46"
    },
    {
      "type": "WEB",
      "url": "https://seclists.org/bugtraq/2019/Dec/39"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XVEP3LAK4JSPRXFO4QF4GG2IVXADV3SO"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/EXDDAOWSAIEFQNBHWYE6PPYFV4QXGMCD"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DDHOAATPWJCXRNFMJ2SASDBBNU5RJONY"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XVEP3LAK4JSPRXFO4QF4GG2IVXADV3SO"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EXDDAOWSAIEFQNBHWYE6PPYFV4QXGMCD"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DDHOAATPWJCXRNFMJ2SASDBBNU5RJONY"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2022/03/msg00023.html"
    },
    {
      "type": "WEB",
      "url": "https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=f1c5eea8a817075d31e43f5876993c6710238c98"
    },
    {
      "type": "WEB",
      "url": "https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=419102400a2811582a7a3d4a4e317d72e5ce0a8f"
    },
    {
      "type": "WEB",
      "url": "https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=f1c5eea8a817075d31e43f5876993c6710238c98"
    },
    {
      "type": "WEB",
      "url": "https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=419102400a2811582a7a3d4a4e317d72e5ce0a8f"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00030.html"
    },
    {
      "type": "WEB",
      "url": "http://packetstormsecurity.com/files/155754/Slackware-Security-Advisory-openssl-Updates.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.