gsd-2017-13090
Vulnerability from gsd
Modified
2023-12-13 01:21
Details
The retr.c:fd_read_body() function is called when processing OK responses. When the response is sent chunked in wget before 1.19.2, the chunk parser uses strtol() to read each chunk's length, but doesn't check that the chunk length is a non-negative number. The code then tries to read the chunk in pieces of 8192 bytes by using the MIN() macro, but ends up passing the negative chunk length to retr.c:fd_read(). As fd_read() takes an int argument, the high 32 bits of the chunk length are discarded, leaving fd_read() with a completely attacker controlled length argument. The attacker can corrupt malloc metadata after the allocated buffer.
Aliases
Aliases
CVE-2017-13090


To clipboard 

{
  "GSD": {
    "alias": "CVE-2017-13090",
    "description": "The retr.c:fd_read_body() function is called when processing OK responses. When the response is sent chunked in wget before 1.19.2, the chunk parser uses strtol() to read each chunk\u0027s length, but doesn\u0027t check that the chunk length is a non-negative number. The code then tries to read the chunk in pieces of 8192 bytes by using the MIN() macro, but ends up passing the negative chunk length to retr.c:fd_read(). As fd_read() takes an int argument, the high 32 bits of the chunk length are discarded, leaving fd_read() with a completely attacker controlled length argument. The attacker can corrupt malloc metadata after the allocated buffer.",
    "id": "GSD-2017-13090",
    "references": [
      "https://www.suse.com/security/cve/CVE-2017-13090.html",
      "https://www.debian.org/security/2017/dsa-4008",
      "https://access.redhat.com/errata/RHSA-2017:3075",
      "https://ubuntu.com/security/CVE-2017-13090",
      "https://advisories.mageia.org/CVE-2017-13090.html",
      "https://security.archlinux.org/CVE-2017-13090",
      "https://alas.aws.amazon.com/cve/html/CVE-2017-13090.html",
      "https://linux.oracle.com/cve/CVE-2017-13090.html"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2017-13090"
      ],
      "details": "The retr.c:fd_read_body() function is called when processing OK responses. When the response is sent chunked in wget before 1.19.2, the chunk parser uses strtol() to read each chunk\u0027s length, but doesn\u0027t check that the chunk length is a non-negative number. The code then tries to read the chunk in pieces of 8192 bytes by using the MIN() macro, but ends up passing the negative chunk length to retr.c:fd_read(). As fd_read() takes an int argument, the high 32 bits of the chunk length are discarded, leaving fd_read() with a completely attacker controlled length argument. The attacker can corrupt malloc metadata after the allocated buffer.",
      "id": "GSD-2017-13090",
      "modified": "2023-12-13T01:21:01.699235Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "cert@cert.org",
        "DATE_PUBLIC": "2017-10-27T15:00:00.000Z",
        "ID": "CVE-2017-13090",
        "STATE": "PUBLIC",
        "TITLE": "GNU Wget: heap overflow in HTTP protocol handling"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "Wget",
                    "version": {
                      "version_data": [
                        {
                          "platform": "any",
                          "version_value": "prior to 1.19.2"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "GNU Project"
            }
          ]
        }
      },
      "credit": [
        "Antti Levom\u00e4ki, Christian Jalio, Joonas Pihlaja from Forcepoint"
      ],
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
          {
            "lang": "eng",
            "value": "The retr.c:fd_read_body() function is called when processing OK responses. When the response is sent chunked in wget before 1.19.2, the chunk parser uses strtol() to read each chunk\u0027s length, but doesn\u0027t check that the chunk length is a non-negative number. The code then tries to read the chunk in pieces of 8192 bytes by using the MIN() macro, but ends up passing the negative chunk length to retr.c:fd_read(). As fd_read() takes an int argument, the high 32 bits of the chunk length are discarded, leaving fd_read() with a completely attacker controlled length argument. The attacker can corrupt malloc metadata after the allocated buffer."
          }
        ]
      },
      "impact": {
        "cvss": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 8.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
          "version": "3.0"
        }
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "CWE-122: Heap-based Buffer Overflow"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://www.viestintavirasto.fi/en/cybersecurity/vulnerabilities/2017/haavoittuvuus-2017-037.html",
            "refsource": "MISC",
            "url": "https://www.viestintavirasto.fi/en/cybersecurity/vulnerabilities/2017/haavoittuvuus-2017-037.html"
          },
          {
            "name": "101590",
            "refsource": "BID",
            "url": "http://www.securityfocus.com/bid/101590"
          },
          {
            "name": "GLSA-201711-06",
            "refsource": "GENTOO",
            "url": "https://security.gentoo.org/glsa/201711-06"
          },
          {
            "name": "DSA-4008",
            "refsource": "DEBIAN",
            "url": "http://www.debian.org/security/2017/dsa-4008"
          },
          {
            "name": "https://www.synology.com/support/security/Synology_SA_17_62_Wget",
            "refsource": "CONFIRM",
            "url": "https://www.synology.com/support/security/Synology_SA_17_62_Wget"
          },
          {
            "name": "http://git.savannah.gnu.org/cgit/wget.git/commit/?id=ba6b44f6745b14dce414761a8e4b35d31b176bba",
            "refsource": "CONFIRM",
            "url": "http://git.savannah.gnu.org/cgit/wget.git/commit/?id=ba6b44f6745b14dce414761a8e4b35d31b176bba"
          },
          {
            "name": "1039661",
            "refsource": "SECTRACK",
            "url": "http://www.securitytracker.com/id/1039661"
          },
          {
            "name": "RHSA-2017:3075",
            "refsource": "REDHAT",
            "url": "https://access.redhat.com/errata/RHSA-2017:3075"
          }
        ]
      },
      "solution": "Patch to Wget 1.19.2 or equivalent version from your operating system distribution."
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:gnu:wget:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndIncluding": "1.19.1",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          },
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "cert@cert.org",
          "ID": "CVE-2017-13090"
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "en",
              "value": "The retr.c:fd_read_body() function is called when processing OK responses. When the response is sent chunked in wget before 1.19.2, the chunk parser uses strtol() to read each chunk\u0027s length, but doesn\u0027t check that the chunk length is a non-negative number. The code then tries to read the chunk in pieces of 8192 bytes by using the MIN() macro, but ends up passing the negative chunk length to retr.c:fd_read(). As fd_read() takes an int argument, the high 32 bits of the chunk length are discarded, leaving fd_read() with a completely attacker controlled length argument. The attacker can corrupt malloc metadata after the allocated buffer."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-119"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://www.viestintavirasto.fi/en/cybersecurity/vulnerabilities/2017/haavoittuvuus-2017-037.html",
              "refsource": "MISC",
              "tags": [
                "Issue Tracking",
                "Patch",
                "Third Party Advisory"
              ],
              "url": "https://www.viestintavirasto.fi/en/cybersecurity/vulnerabilities/2017/haavoittuvuus-2017-037.html"
            },
            {
              "name": "http://git.savannah.gnu.org/cgit/wget.git/commit/?id=ba6b44f6745b14dce414761a8e4b35d31b176bba",
              "refsource": "CONFIRM",
              "tags": [
                "Issue Tracking",
                "Patch",
                "Third Party Advisory"
              ],
              "url": "http://git.savannah.gnu.org/cgit/wget.git/commit/?id=ba6b44f6745b14dce414761a8e4b35d31b176bba"
            },
            {
              "name": "1039661",
              "refsource": "SECTRACK",
              "tags": [
                "Issue Tracking",
                "Third Party Advisory",
                "VDB Entry"
              ],
              "url": "http://www.securitytracker.com/id/1039661"
            },
            {
              "name": "101590",
              "refsource": "BID",
              "tags": [
                "Issue Tracking",
                "Third Party Advisory",
                "VDB Entry"
              ],
              "url": "http://www.securityfocus.com/bid/101590"
            },
            {
              "name": "DSA-4008",
              "refsource": "DEBIAN",
              "tags": [
                "Issue Tracking",
                "Third Party Advisory"
              ],
              "url": "http://www.debian.org/security/2017/dsa-4008"
            },
            {
              "name": "GLSA-201711-06",
              "refsource": "GENTOO",
              "tags": [
                "Issue Tracking",
                "Third Party Advisory"
              ],
              "url": "https://security.gentoo.org/glsa/201711-06"
            },
            {
              "name": "RHSA-2017:3075",
              "refsource": "REDHAT",
              "tags": [],
              "url": "https://access.redhat.com/errata/RHSA-2017:3075"
            },
            {
              "name": "https://www.synology.com/support/security/Synology_SA_17_62_Wget",
              "refsource": "CONFIRM",
              "tags": [],
              "url": "https://www.synology.com/support/security/Synology_SA_17_62_Wget"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "cvssV2": {
            "accessComplexity": "MEDIUM",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "COMPLETE",
            "baseScore": 9.3,
            "confidentialityImpact": "COMPLETE",
            "integrityImpact": "COMPLETE",
            "vectorString": "AV:N/AC:M/Au:N/C:C/I:C/A:C",
            "version": "2.0"
          },
          "exploitabilityScore": 8.6,
          "impactScore": 10.0,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "HIGH",
          "userInteractionRequired": true
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
            "version": "3.0"
          },
          "exploitabilityScore": 2.8,
          "impactScore": 5.9
        }
      },
      "lastModifiedDate": "2017-12-30T02:29Z",
      "publishedDate": "2017-10-27T19:29Z"
    }
  }
}


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