GSD-2016-4356

Vulnerability from gsd - Updated: 2023-12-13 01:21
Details
The append_utf8_value function in the DN decoder (dn.c) in Libksba before 1.3.3 allows remote attackers to cause a denial of service (out-of-bounds read) by clearing the high bit of the byte after invalid utf-8 encoded data.
Aliases
Aliases

{
  "GSD": {
    "alias": "CVE-2016-4356",
    "description": "The append_utf8_value function in the DN decoder (dn.c) in Libksba before 1.3.3 allows remote attackers to cause a denial of service (out-of-bounds read) by clearing the high bit of the byte after invalid utf-8 encoded data.",
    "id": "GSD-2016-4356",
    "references": [
      "https://www.suse.com/security/cve/CVE-2016-4356.html",
      "https://ubuntu.com/security/CVE-2016-4356"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2016-4356"
      ],
      "details": "The append_utf8_value function in the DN decoder (dn.c) in Libksba before 1.3.3 allows remote attackers to cause a denial of service (out-of-bounds read) by clearing the high bit of the byte after invalid utf-8 encoded data.",
      "id": "GSD-2016-4356",
      "modified": "2023-12-13T01:21:18.759453Z",
      "schema_version": "1.4.0"
    }
  },
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        "ID": "CVE-2016-4356",
        "STATE": "PUBLIC"
      },
      "affects": {
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                "product_data": [
                  {
                    "product_name": "n/a",
                    "version": {
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                          "version_value": "n/a"
                        }
                      ]
                    }
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            }
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            "value": "The append_utf8_value function in the DN decoder (dn.c) in Libksba before 1.3.3 allows remote attackers to cause a denial of service (out-of-bounds read) by clearing the high bit of the byte after invalid utf-8 encoded data."
          }
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          {
            "name": "[oss-security] 20160510 Re: Re: CVE request: three issues in libksba",
            "refsource": "MLIST",
            "url": "http://www.openwall.com/lists/oss-security/2016/05/10/3"
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            "name": "[oss-security] 20160429 CVE request: three issues in libksba",
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          {
            "name": "[oss-security] 20160429 Re: CVE request: three issues in libksba",
            "refsource": "MLIST",
            "url": "http://www.openwall.com/lists/oss-security/2016/04/29/8"
          },
          {
            "name": "http://git.gnupg.org/cgi-bin/gitweb.cgi?p=libksba.git;a=commit;h=243d12fdec66a4360fbb3e307a046b39b5b4ffc3",
            "refsource": "CONFIRM",
            "url": "http://git.gnupg.org/cgi-bin/gitweb.cgi?p=libksba.git;a=commit;h=243d12fdec66a4360fbb3e307a046b39b5b4ffc3"
          },
          {
            "name": "GLSA-201604-04",
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            "url": "https://security.gentoo.org/glsa/201604-04"
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        ]
      }
    },
    "nvd.nist.gov": {
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                "cpe23Uri": "cpe:2.3:a:gnupg:libksba:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndIncluding": "1.3.2",
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        "description": {
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              "value": "The append_utf8_value function in the DN decoder (dn.c) in Libksba before 1.3.3 allows remote attackers to cause a denial of service (out-of-bounds read) by clearing the high bit of the byte after invalid utf-8 encoded data."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
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                {
                  "lang": "en",
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                }
              ]
            }
          ]
        },
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            },
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            },
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            }
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      },
      "impact": {
        "baseMetricV2": {
          "cvssV2": {
            "accessComplexity": "LOW",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 5.0,
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
            "version": "2.0"
          },
          "exploitabilityScore": 10.0,
          "impactScore": 2.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.0"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 3.6
        }
      },
      "lastModifiedDate": "2023-05-18T18:08Z",
      "publishedDate": "2016-06-13T19:59Z"
    }
  }
}



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