github - ghsa-wcf7-2f92-j5mv

ghsa-wcf7-2f92-j5mv

Vulnerability from github

Published

2022-05-13 01:28

Modified

2022-05-13 01:28

Severity ?

7.5 (High) - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Details

cipher/elgamal.c in Libgcrypt through 1.8.2, when used to encrypt messages directly, improperly encodes plaintexts, which allows attackers to obtain sensitive information by reading ciphertext data (i.e., it does not have semantic security in face of a ciphertext-only attack). The Decisional Diffie-Hellman (DDH) assumption does not hold for Libgcrypt's ElGamal implementation.

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{
  "affected": [],
  "aliases": [
    "CVE-2018-6829"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-327"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2018-02-07T23:29:00Z",
    "severity": "HIGH"
  },
  "details": "cipher/elgamal.c in Libgcrypt through 1.8.2, when used to encrypt messages directly, improperly encodes plaintexts, which allows attackers to obtain sensitive information by reading ciphertext data (i.e., it does not have semantic security in face of a ciphertext-only attack). The Decisional Diffie-Hellman (DDH) assumption does not hold for Libgcrypt\u0027s ElGamal implementation.",
  "id": "GHSA-wcf7-2f92-j5mv",
  "modified": "2022-05-13T01:28:55Z",
  "published": "2022-05-13T01:28:55Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-6829"
    },
    {
      "type": "WEB",
      "url": "https://github.com/weikengchen/attack-on-libgcrypt-elgamal"
    },
    {
      "type": "WEB",
      "url": "https://github.com/weikengchen/attack-on-libgcrypt-elgamal/wiki"
    },
    {
      "type": "WEB",
      "url": "https://lists.gnupg.org/pipermail/gcrypt-devel/2018-February/004394.html"
    },
    {
      "type": "WEB",
      "url": "https://www.oracle.com/security-alerts/cpujan2020.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}

cve-2018-6829

Vulnerability from cvelistv5

Published

2018-02-07 23:00

Modified

2024-08-05 06:17

Severity ?

Summary

References

▼	URL	Tags
	https://github.com/weikengchen/attack-on-libgcrypt-elgamal/wiki	x_refsource_MISC
	https://lists.gnupg.org/pipermail/gcrypt-devel/2018-February/004394.html	x_refsource_MISC
	https://github.com/weikengchen/attack-on-libgcrypt-elgamal	x_refsource_MISC
	https://www.oracle.com/security-alerts/cpujan2020.html	x_refsource_MISC

Impacted products

Vendor

Product

Version

▼

n/a

Version: n/a

Show details on NVD website

JSON

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          },
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            "url": "https://github.com/weikengchen/attack-on-libgcrypt-elgamal"
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          }
        ],
        "title": "CVE Program Container"
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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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