Vulnerability-Lookup

GHSA-8C56-CPMW-89X7

Vulnerability from github – Published: 2017-12-13 21:38 – Updated: 2021-06-30 18:05

Summary

Out-of-bounds read in nokogiri

Details

libxml2 20904-GITv2.9.4-16-g0741801 is vulnerable to a heap-based buffer over-read in the xmlDictAddString function in dict.c. This vulnerability causes programs that use libxml2, such as PHP, to crash. This vulnerability exists because of an incomplete fix for CVE-2016-1839. GitHub is notifying on nokogiri as uses libxml2.

Severity ?

7.5 (High)


                  
                    CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Show details on source website

JSON

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{
  "affected": [
    {
      "package": {
        "ecosystem": "RubyGems",
        "name": "nokogiri"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.8.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2017-9050"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-125"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2020-06-16T21:25:13Z",
    "nvd_published_at": "2017-05-18T06:29:00Z",
    "severity": "HIGH"
  },
  "details": "libxml2 20904-GITv2.9.4-16-g0741801 is vulnerable to a heap-based buffer over-read in the xmlDictAddString function in dict.c. This vulnerability causes programs that use libxml2, such as PHP, to crash. This vulnerability exists because of an incomplete fix for CVE-2016-1839.  GitHub is notifying on nokogiri as uses libxml2.",
  "id": "GHSA-8c56-cpmw-89x7",
  "modified": "2021-06-30T18:05:23Z",
  "published": "2017-12-13T21:38:24Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2017-9050"
    },
    {
      "type": "WEB",
      "url": "https://security.gentoo.org/glsa/201711-01"
    },
    {
      "type": "WEB",
      "url": "http://www.debian.org/security/2017/dsa-3952"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2017/05/15/1"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Out-of-bounds read in nokogiri"
}

GSD-2017-9050

Vulnerability from gsd - Updated: 2017-09-19 00:00

Details

The version of libxml2 packaged with Nokogiri contains several vulnerabilities. Nokogiri has mitigated these issues by upgrading to libxml 2.9.5. It was discovered that a type confusion error existed in libxml2. An attacker could use this to specially construct XML data that could cause a denial of service or possibly execute arbitrary code. (CVE-2017-0663) It was discovered that libxml2 did not properly validate parsed entity references. An attacker could use this to specially construct XML data that could expose sensitive information. (CVE-2017-7375) It was discovered that a buffer overflow existed in libxml2 when handling HTTP redirects. An attacker could use this to specially construct XML data that could cause a denial of service or possibly execute arbitrary code. (CVE-2017-7376) Marcel Böhme and Van-Thuan Pham discovered a buffer overflow in libxml2 when handling elements. An attacker could use this to specially construct XML data that could cause a denial of service or possibly execute arbitrary code. (CVE-2017-9047) Marcel Böhme and Van-Thuan Pham discovered a buffer overread in libxml2 when handling elements. An attacker could use this to specially construct XML data that could cause a denial of service. (CVE-2017-9048) Marcel Böhme and Van-Thuan Pham discovered multiple buffer overreads in libxml2 when handling parameter-entity references. An attacker could use these to specially construct XML data that could cause a denial of service. (CVE-2017-9049, CVE-2017-9050)

Aliases

CVE-2017-9050

JSON

To clipboard

{
  "GSD": {
    "alias": "CVE-2017-9050",
    "description": "libxml2 20904-GITv2.9.4-16-g0741801 is vulnerable to a heap-based buffer over-read in the xmlDictAddString function in dict.c. This vulnerability causes programs that use libxml2, such as PHP, to crash. This vulnerability exists because of an incomplete fix for CVE-2016-1839.",
    "id": "GSD-2017-9050",
    "references": [
      "https://www.suse.com/security/cve/CVE-2017-9050.html",
      "https://www.debian.org/security/2017/dsa-3952",
      "https://access.redhat.com/errata/RHSA-2018:2486",
      "https://ubuntu.com/security/CVE-2017-9050",
      "https://advisories.mageia.org/CVE-2017-9050.html"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "affected": [
        {
          "package": {
            "ecosystem": "RubyGems",
            "name": "nokogiri",
            "purl": "pkg:gem/nokogiri"
          }
        }
      ],
      "aliases": [
        "CVE-2017-9050",
        "GHSA-8c56-cpmw-89x7"
      ],
      "details": "The version of libxml2 packaged with Nokogiri contains several\nvulnerabilities. Nokogiri has mitigated these issues by upgrading to\nlibxml 2.9.5.\n\nIt was discovered that a type confusion error existed in libxml2. An\nattacker could use this to specially construct XML data that\ncould cause a denial of service or possibly execute arbitrary\ncode. (CVE-2017-0663)\n\nIt was discovered that libxml2 did not properly validate parsed entity\nreferences. An attacker could use this to specially construct XML\ndata that could expose sensitive information. (CVE-2017-7375)\n\nIt was discovered that a buffer overflow existed in libxml2 when\nhandling HTTP redirects. An attacker could use this to specially\nconstruct XML data that could cause a denial of service or possibly\nexecute arbitrary code. (CVE-2017-7376)\n\nMarcel B\u00f6hme and Van-Thuan Pham discovered a buffer overflow in\nlibxml2 when handling elements. An attacker could use this to specially\nconstruct XML data that could cause a denial of service or possibly\nexecute arbitrary code. (CVE-2017-9047)\n\nMarcel B\u00f6hme and Van-Thuan Pham discovered a buffer overread\nin libxml2 when handling elements. An attacker could use this\nto specially construct XML data that could cause a denial of\nservice. (CVE-2017-9048)\n\nMarcel B\u00f6hme and Van-Thuan Pham discovered multiple buffer overreads\nin libxml2 when handling parameter-entity references. An attacker\ncould use these to specially construct XML data that could cause a\ndenial of service. (CVE-2017-9049, CVE-2017-9050)\n",
      "id": "GSD-2017-9050",
      "modified": "2017-09-19T00:00:00.000Z",
      "published": "2017-09-19T00:00:00.000Z",
      "references": [
        {
          "type": "WEB",
          "url": "https://github.com/sparklemotion/nokogiri/issues/1673"
        },
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          "type": "WEB",
          "url": "https://usn.ubuntu.com/usn/usn-3424-1/"
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        },
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          "type": "WEB",
          "url": "https://people.canonical.com/~ubuntu-security/cve/2017/CVE-2017-7376.html"
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          "type": "WEB",
          "url": "https://people.canonical.com/~ubuntu-security/cve/2017/CVE-2017-9047.html"
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          "type": "WEB",
          "url": "https://people.canonical.com/~ubuntu-security/cve/2017/CVE-2017-9048.html"
        },
        {
          "type": "WEB",
          "url": "https://people.canonical.com/~ubuntu-security/cve/2017/CVE-2017-9049.html"
        },
        {
          "type": "WEB",
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      "related": [
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        "CVE-2017-7375",
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        "CVE-2017-9049",
        "CVE-2017-9050"
      ],
      "schema_version": "1.4.0",
      "severity": [
        {
          "score": 7.5,
          "type": "CVSS_V3"
        }
      ],
      "summary": "Nokogiri gem, via libxml, is affected by DoS and RCE vulnerabilities"
    }
  },
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      "description": "The version of libxml2 packaged with Nokogiri contains several\nvulnerabilities. Nokogiri has mitigated these issues by upgrading to\nlibxml 2.9.5.\n\nIt was discovered that a type confusion error existed in libxml2. An\nattacker could use this to specially construct XML data that\ncould cause a denial of service or possibly execute arbitrary\ncode. (CVE-2017-0663)\n\nIt was discovered that libxml2 did not properly validate parsed entity\nreferences. An attacker could use this to specially construct XML\ndata that could expose sensitive information. (CVE-2017-7375)\n\nIt was discovered that a buffer overflow existed in libxml2 when\nhandling HTTP redirects. An attacker could use this to specially\nconstruct XML data that could cause a denial of service or possibly\nexecute arbitrary code. (CVE-2017-7376)\n\nMarcel B\u00f6hme and Van-Thuan Pham discovered a buffer overflow in\nlibxml2 when handling elements. An attacker could use this to specially\nconstruct XML data that could cause a denial of service or possibly\nexecute arbitrary code. (CVE-2017-9047)\n\nMarcel B\u00f6hme and Van-Thuan Pham discovered a buffer overread\nin libxml2 when handling elements. An attacker could use this\nto specially construct XML data that could cause a denial of\nservice. (CVE-2017-9048)\n\nMarcel B\u00f6hme and Van-Thuan Pham discovered multiple buffer overreads\nin libxml2 when handling parameter-entity references. An attacker\ncould use these to specially construct XML data that could cause a\ndenial of service. (CVE-2017-9049, CVE-2017-9050)\n",
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      "ghsa": "8c56-cpmw-89x7",
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      "related": {
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          "2017-9047",
          "2017-9048",
          "2017-9049",
          "2017-9050"
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          "https://people.canonical.com/~ubuntu-security/cve/2017/CVE-2017-7376.html",
          "https://people.canonical.com/~ubuntu-security/cve/2017/CVE-2017-9047.html",
          "https://people.canonical.com/~ubuntu-security/cve/2017/CVE-2017-9048.html",
          "https://people.canonical.com/~ubuntu-security/cve/2017/CVE-2017-9049.html",
          "https://people.canonical.com/~ubuntu-security/cve/2017/CVE-2017-9050.html"
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      "title": "Nokogiri gem, via libxml, is affected by DoS and RCE vulnerabilities",
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          "cwe_ids": [
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          "date": "2021-06-29",
          "description": "libxml2 is vulnerable to a heap-based buffer over-read in the xmlDictAddString function in dict.c. This vulnerability causes programs that use libxml2, such as PHP, to crash. This vulnerability exists because of an incomplete fix for CVE-2016-1839.",
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          "pubdate": "2017-05-18",
          "solution": "Unfortunately, there is no solution available yet.",
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          "uuid": "9d3f402d-e0ee-46d5-9d33-5abc9d2a3b21"
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      "impact": {
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            "baseScore": 5.0,
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          "obtainAllPrivilege": false,
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            "baseScore": 7.5,
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            "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"
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          "impactScore": 3.6
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      "lastModifiedDate": "2021-06-29T15:15Z",
      "publishedDate": "2017-05-18T06:29Z"
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  }
}

CVE-2017-9050 (GCVE-0-2017-9050)

Vulnerability from cvelistv5 – Published: 2017-05-18 06:13 – Updated: 2025-12-17 22:10

Summary

Severity ?

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE

Assigner

mitre

References

URL

Tags

	http://www.securityfocus.com/bid/98568	vdb-entryx_refsource_BID
	http://www.debian.org/security/2017/dsa-3952	vendor-advisoryx_refsource_DEBIAN
	https://security.gentoo.org/glsa/201711-01	vendor-advisoryx_refsource_GENTOO
	http://www.openwall.com/lists/oss-security/2017/05/15/1	x_refsource_MISC
	https://lists.apache.org/thread.html/rf4c02775860…	mailing-listx_refsource_MLIST
	https://lists.apache.org/thread.html/r58af02e294b…	mailing-listx_refsource_MLIST

Date Public ?

2017-05-18 00:00

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date	Other

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.

Action not permitted

GHSA-8C56-CPMW-89X7

GSD-2017-9050

CVE-2017-9050 (GCVE-0-2017-9050)

Tags

Sightings

Nomenclature