CVE-2018-0495 (GCVE-0-2018-0495)

Vulnerability from cvelistv5 – Published: 2018-06-13 23:00 – Updated: 2024-08-05 03:28
VLAI?
Summary
Libgcrypt before 1.7.10 and 1.8.x before 1.8.3 allows a memory-cache side-channel attack on ECDSA signatures that can be mitigated through the use of blinding during the signing process in the _gcry_ecc_ecdsa_sign function in cipher/ecc-ecdsa.c, aka the Return Of the Hidden Number Problem or ROHNP. To discover an ECDSA key, the attacker needs access to either the local machine or a different virtual machine on the same physical host.
Severity ?
No CVSS data available.
CWE
  • side-channel attack
Assigner
References
https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcr… x_refsource_MISC
http://www.securitytracker.com/id/1041144 vdb-entryx_refsource_SECTRACK
https://usn.ubuntu.com/3850-1/ vendor-advisoryx_refsource_UBUNTU
http://www.securitytracker.com/id/1041147 vdb-entryx_refsource_SECTRACK
https://www.nccgroup.trust/us/our-research/techni… x_refsource_MISC
https://usn.ubuntu.com/3689-1/ vendor-advisoryx_refsource_UBUNTU
https://lists.gnupg.org/pipermail/gnupg-announce/… x_refsource_MISC
https://usn.ubuntu.com/3689-2/ vendor-advisoryx_refsource_UBUNTU
https://usn.ubuntu.com/3692-2/ vendor-advisoryx_refsource_UBUNTU
https://lists.debian.org/debian-lts-announce/2018… mailing-listx_refsource_MLIST
https://www.debian.org/security/2018/dsa-4231 vendor-advisoryx_refsource_DEBIAN
https://access.redhat.com/errata/RHSA-2018:3505 vendor-advisoryx_refsource_REDHAT
https://usn.ubuntu.com/3850-2/ vendor-advisoryx_refsource_UBUNTU
https://usn.ubuntu.com/3692-1/ vendor-advisoryx_refsource_UBUNTU
https://access.redhat.com/errata/RHSA-2018:3221 vendor-advisoryx_refsource_REDHAT
https://dev.gnupg.org/T4011 x_refsource_MISC
https://www.oracle.com/technetwork/security-advis… x_refsource_MISC
https://access.redhat.com/errata/RHSA-2019:1297 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2019:1296 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2019:1543 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2019:2237 vendor-advisoryx_refsource_REDHAT
Impacted products
Vendor Product Version
n/a Libgcrypt before 1.7.10 and 1.8.x before 1.8.3 Affected: Libgcrypt before 1.7.10 and 1.8.x before 1.8.3
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-05T03:28:10.586Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git%3Ba=commit%3Bh=9010d1576e278a4274ad3f4aa15776c28f6ba965"
          },
          {
            "name": "1041144",
            "tags": [
              "vdb-entry",
              "x_refsource_SECTRACK",
              "x_transferred"
            ],
            "url": "http://www.securitytracker.com/id/1041144"
          },
          {
            "name": "USN-3850-1",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "https://usn.ubuntu.com/3850-1/"
          },
          {
            "name": "1041147",
            "tags": [
              "vdb-entry",
              "x_refsource_SECTRACK",
              "x_transferred"
            ],
            "url": "http://www.securitytracker.com/id/1041147"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://www.nccgroup.trust/us/our-research/technical-advisory-return-of-the-hidden-number-problem/"
          },
          {
            "name": "USN-3689-1",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "https://usn.ubuntu.com/3689-1/"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://lists.gnupg.org/pipermail/gnupg-announce/2018q2/000426.html"
          },
          {
            "name": "USN-3689-2",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "https://usn.ubuntu.com/3689-2/"
          },
          {
            "name": "USN-3692-2",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "https://usn.ubuntu.com/3692-2/"
          },
          {
            "name": "[debian-lts-announce] 20180629 [SECURITY] [DLA 1405-1] libgcrypt20 security update",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2018/06/msg00013.html"
          },
          {
            "name": "DSA-4231",
            "tags": [
              "vendor-advisory",
              "x_refsource_DEBIAN",
              "x_transferred"
            ],
            "url": "https://www.debian.org/security/2018/dsa-4231"
          },
          {
            "name": "RHSA-2018:3505",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2018:3505"
          },
          {
            "name": "USN-3850-2",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "https://usn.ubuntu.com/3850-2/"
          },
          {
            "name": "USN-3692-1",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "https://usn.ubuntu.com/3692-1/"
          },
          {
            "name": "RHSA-2018:3221",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2018:3221"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://dev.gnupg.org/T4011"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html"
          },
          {
            "name": "RHSA-2019:1297",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2019:1297"
          },
          {
            "name": "RHSA-2019:1296",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2019:1296"
          },
          {
            "name": "RHSA-2019:1543",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2019:1543"
          },
          {
            "name": "RHSA-2019:2237",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2019:2237"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Libgcrypt before 1.7.10 and 1.8.x before 1.8.3",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "Libgcrypt before 1.7.10 and 1.8.x before 1.8.3"
            }
          ]
        }
      ],
      "datePublic": "2018-06-13T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "Libgcrypt before 1.7.10 and 1.8.x before 1.8.3 allows a memory-cache side-channel attack on ECDSA signatures that can be mitigated through the use of blinding during the signing process in the _gcry_ecc_ecdsa_sign function in cipher/ecc-ecdsa.c, aka the Return Of the Hidden Number Problem or ROHNP. To discover an ECDSA key, the attacker needs access to either the local machine or a different virtual machine on the same physical host."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "side-channel attack",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2019-08-06T16:06:34.000Z",
        "orgId": "79363d38-fa19-49d1-9214-5f28da3f3ac5",
        "shortName": "debian"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git%3Ba=commit%3Bh=9010d1576e278a4274ad3f4aa15776c28f6ba965"
        },
        {
          "name": "1041144",
          "tags": [
            "vdb-entry",
            "x_refsource_SECTRACK"
          ],
          "url": "http://www.securitytracker.com/id/1041144"
        },
        {
          "name": "USN-3850-1",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "https://usn.ubuntu.com/3850-1/"
        },
        {
          "name": "1041147",
          "tags": [
            "vdb-entry",
            "x_refsource_SECTRACK"
          ],
          "url": "http://www.securitytracker.com/id/1041147"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://www.nccgroup.trust/us/our-research/technical-advisory-return-of-the-hidden-number-problem/"
        },
        {
          "name": "USN-3689-1",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "https://usn.ubuntu.com/3689-1/"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://lists.gnupg.org/pipermail/gnupg-announce/2018q2/000426.html"
        },
        {
          "name": "USN-3689-2",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "https://usn.ubuntu.com/3689-2/"
        },
        {
          "name": "USN-3692-2",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "https://usn.ubuntu.com/3692-2/"
        },
        {
          "name": "[debian-lts-announce] 20180629 [SECURITY] [DLA 1405-1] libgcrypt20 security update",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2018/06/msg00013.html"
        },
        {
          "name": "DSA-4231",
          "tags": [
            "vendor-advisory",
            "x_refsource_DEBIAN"
          ],
          "url": "https://www.debian.org/security/2018/dsa-4231"
        },
        {
          "name": "RHSA-2018:3505",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2018:3505"
        },
        {
          "name": "USN-3850-2",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "https://usn.ubuntu.com/3850-2/"
        },
        {
          "name": "USN-3692-1",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "https://usn.ubuntu.com/3692-1/"
        },
        {
          "name": "RHSA-2018:3221",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2018:3221"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://dev.gnupg.org/T4011"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html"
        },
        {
          "name": "RHSA-2019:1297",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2019:1297"
        },
        {
          "name": "RHSA-2019:1296",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2019:1296"
        },
        {
          "name": "RHSA-2019:1543",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2019:1543"
        },
        {
          "name": "RHSA-2019:2237",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2019:2237"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "security@debian.org",
          "ID": "CVE-2018-0495",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "Libgcrypt before 1.7.10 and 1.8.x before 1.8.3",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "Libgcrypt before 1.7.10 and 1.8.x before 1.8.3"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "n/a"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "Libgcrypt before 1.7.10 and 1.8.x before 1.8.3 allows a memory-cache side-channel attack on ECDSA signatures that can be mitigated through the use of blinding during the signing process in the _gcry_ecc_ecdsa_sign function in cipher/ecc-ecdsa.c, aka the Return Of the Hidden Number Problem or ROHNP. To discover an ECDSA key, the attacker needs access to either the local machine or a different virtual machine on the same physical host."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "side-channel attack"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git;a=commit;h=9010d1576e278a4274ad3f4aa15776c28f6ba965",
              "refsource": "MISC",
              "url": "https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git;a=commit;h=9010d1576e278a4274ad3f4aa15776c28f6ba965"
            },
            {
              "name": "1041144",
              "refsource": "SECTRACK",
              "url": "http://www.securitytracker.com/id/1041144"
            },
            {
              "name": "USN-3850-1",
              "refsource": "UBUNTU",
              "url": "https://usn.ubuntu.com/3850-1/"
            },
            {
              "name": "1041147",
              "refsource": "SECTRACK",
              "url": "http://www.securitytracker.com/id/1041147"
            },
            {
              "name": "https://www.nccgroup.trust/us/our-research/technical-advisory-return-of-the-hidden-number-problem/",
              "refsource": "MISC",
              "url": "https://www.nccgroup.trust/us/our-research/technical-advisory-return-of-the-hidden-number-problem/"
            },
            {
              "name": "USN-3689-1",
              "refsource": "UBUNTU",
              "url": "https://usn.ubuntu.com/3689-1/"
            },
            {
              "name": "https://lists.gnupg.org/pipermail/gnupg-announce/2018q2/000426.html",
              "refsource": "MISC",
              "url": "https://lists.gnupg.org/pipermail/gnupg-announce/2018q2/000426.html"
            },
            {
              "name": "USN-3689-2",
              "refsource": "UBUNTU",
              "url": "https://usn.ubuntu.com/3689-2/"
            },
            {
              "name": "USN-3692-2",
              "refsource": "UBUNTU",
              "url": "https://usn.ubuntu.com/3692-2/"
            },
            {
              "name": "[debian-lts-announce] 20180629 [SECURITY] [DLA 1405-1] libgcrypt20 security update",
              "refsource": "MLIST",
              "url": "https://lists.debian.org/debian-lts-announce/2018/06/msg00013.html"
            },
            {
              "name": "DSA-4231",
              "refsource": "DEBIAN",
              "url": "https://www.debian.org/security/2018/dsa-4231"
            },
            {
              "name": "RHSA-2018:3505",
              "refsource": "REDHAT",
              "url": "https://access.redhat.com/errata/RHSA-2018:3505"
            },
            {
              "name": "USN-3850-2",
              "refsource": "UBUNTU",
              "url": "https://usn.ubuntu.com/3850-2/"
            },
            {
              "name": "USN-3692-1",
              "refsource": "UBUNTU",
              "url": "https://usn.ubuntu.com/3692-1/"
            },
            {
              "name": "RHSA-2018:3221",
              "refsource": "REDHAT",
              "url": "https://access.redhat.com/errata/RHSA-2018:3221"
            },
            {
              "name": "https://dev.gnupg.org/T4011",
              "refsource": "MISC",
              "url": "https://dev.gnupg.org/T4011"
            },
            {
              "name": "https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html",
              "refsource": "MISC",
              "url": "https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html"
            },
            {
              "name": "RHSA-2019:1297",
              "refsource": "REDHAT",
              "url": "https://access.redhat.com/errata/RHSA-2019:1297"
            },
            {
              "name": "RHSA-2019:1296",
              "refsource": "REDHAT",
              "url": "https://access.redhat.com/errata/RHSA-2019:1296"
            },
            {
              "name": "RHSA-2019:1543",
              "refsource": "REDHAT",
              "url": "https://access.redhat.com/errata/RHSA-2019:1543"
            },
            {
              "name": "RHSA-2019:2237",
              "refsource": "REDHAT",
              "url": "https://access.redhat.com/errata/RHSA-2019:2237"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "79363d38-fa19-49d1-9214-5f28da3f3ac5",
    "assignerShortName": "debian",
    "cveId": "CVE-2018-0495",
    "datePublished": "2018-06-13T23:00:00.000Z",
    "dateReserved": "2017-11-27T00:00:00.000Z",
    "dateUpdated": "2024-08-05T03:28:10.586Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • 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.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • 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.