gsd-2017-7526
Vulnerability from gsd
Modified
2023-12-13 01:21
Details
libgcrypt before version 1.7.8 is vulnerable to a cache side-channel attack resulting into a complete break of RSA-1024 while using the left-to-right method for computing the sliding-window expansion. The same attack is believed to work on RSA-2048 with moderately more computation. This side-channel requires that attacker can run arbitrary software on the hardware where the private RSA key is used.
Aliases
Aliases
CVE-2017-7526


To clipboard 

{
  "GSD": {
    "alias": "CVE-2017-7526",
    "description": "libgcrypt before version 1.7.8 is vulnerable to a cache side-channel attack resulting into a complete break of RSA-1024 while using the left-to-right method for computing the sliding-window expansion. The same attack is believed to work on RSA-2048 with moderately more computation. This side-channel requires that attacker can run arbitrary software on the hardware where the private RSA key is used.",
    "id": "GSD-2017-7526",
    "references": [
      "https://www.suse.com/security/cve/CVE-2017-7526.html",
      "https://www.debian.org/security/2017/dsa-3960",
      "https://www.debian.org/security/2017/dsa-3901",
      "https://ubuntu.com/security/CVE-2017-7526",
      "https://advisories.mageia.org/CVE-2017-7526.html",
      "https://security.archlinux.org/CVE-2017-7526"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2017-7526"
      ],
      "details": "libgcrypt before version 1.7.8 is vulnerable to a cache side-channel attack resulting into a complete break of RSA-1024 while using the left-to-right method for computing the sliding-window expansion. The same attack is believed to work on RSA-2048 with moderately more computation. This side-channel requires that attacker can run arbitrary software on the hardware where the private RSA key is used.",
      "id": "GSD-2017-7526",
      "modified": "2023-12-13T01:21:06.541472Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "secalert@redhat.com",
        "ID": "CVE-2017-7526",
        "STATE": "PUBLIC"
      },
      "affects": {
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          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "libgcrypt",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "1.7.8"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "GnuPG"
            }
          ]
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          }
        ]
      },
      "impact": {
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            {
              "vectorString": "6.1/CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:N/A:N",
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            }
          ]
        ]
      },
      "problemtype": {
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                "value": "CWE-200"
              }
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        ]
      },
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          },
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            "refsource": "CONFIRM",
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-7526"
          },
          {
            "name": "1038915",
            "refsource": "SECTRACK",
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          },
          {
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          },
          {
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          },
          {
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            "refsource": "MLIST",
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          },
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          },
          {
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          }
        ]
      }
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:gnupg:libgcrypt:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "1.7.8",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          },
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              }
            ],
            "operator": "OR"
          },
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "secalert@redhat.com",
          "ID": "CVE-2017-7526"
        },
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        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
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            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-310"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "[gnupg-announce] 20170629 Libgcrypt 1.7.8 released to fix CVE-2017-7526",
              "refsource": "MLIST",
              "tags": [
                "Mailing List",
                "Vendor Advisory"
              ],
              "url": "https://lists.gnupg.org/pipermail/gnupg-announce/2017q2/000408.html"
            },
            {
              "name": "https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git;a=commit;h=e6a3dc9900433bbc8ad362a595a3837318c28fa9",
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              "tags": [
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                "Third Party Advisory"
              ],
              "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-7526"
            },
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              "name": "DSA-3960",
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            },
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              "name": "DSA-3901",
              "refsource": "DEBIAN",
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                "Third Party Advisory"
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            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "cvssV2": {
            "accessComplexity": "MEDIUM",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "NONE",
            "baseScore": 4.3,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "NONE",
            "vectorString": "AV:N/AC:M/Au:N/C:P/I:N/A:N",
            "version": "2.0"
          },
          "exploitabilityScore": 8.6,
          "impactScore": 2.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 6.8,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N",
            "version": "3.0"
          },
          "exploitabilityScore": 2.2,
          "impactScore": 4.0
        }
      },
      "lastModifiedDate": "2019-10-09T23:29Z",
      "publishedDate": "2018-07-26T13:29Z"
    }
  }
}


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