gsd-2017-9050
Vulnerability from gsd
Modified
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
Aliases
CVE-2017-9050


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 Böhme 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 Böhme 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 Böhme 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",
            },
            {
               type: "WEB",
               url: "https://usn.ubuntu.com/usn/usn-3424-1/",
            },
            {
               type: "WEB",
               url: "https://people.canonical.com/~ubuntu-security/cve/2017/CVE-2017-0663.html",
            },
            {
               type: "WEB",
               url: "https://people.canonical.com/~ubuntu-security/cve/2017/CVE-2017-7375.html",
            },
            {
               type: "WEB",
               url: "https://people.canonical.com/~ubuntu-security/cve/2017/CVE-2017-7376.html",
            },
            {
               type: "WEB",
               url: "https://people.canonical.com/~ubuntu-security/cve/2017/CVE-2017-9047.html",
            },
            {
               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",
               url: "https://people.canonical.com/~ubuntu-security/cve/2017/CVE-2017-9050.html",
            },
         ],
         related: [
            "CVE-2017-0663",
            "CVE-2017-7375",
            "CVE-2017-7376",
            "CVE-2017-9047",
            "CVE-2017-9048",
            "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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                  url: "https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4@%3Cissues.bookkeeper.apache.org%3E",
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      },
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         cve: "2017-9050",
         cvss_v3: 7.5,
         date: "2017-09-19",
         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 Böhme 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 Böhme 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 Böhme 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",
         gem: "nokogiri",
         ghsa: "8c56-cpmw-89x7",
         patched_versions: [
            ">= 1.8.1",
         ],
         related: {
            cve: [
               "2017-0663",
               "2017-7375",
               "2017-7376",
               "2017-9047",
               "2017-9048",
               "2017-9049",
               "2017-9050",
            ],
            url: [
               "https://usn.ubuntu.com/usn/usn-3424-1/",
               "https://people.canonical.com/~ubuntu-security/cve/2017/CVE-2017-0663.html",
               "https://people.canonical.com/~ubuntu-security/cve/2017/CVE-2017-7375.html",
               "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",
            ],
         },
         title: "Nokogiri gem, via libxml, is affected by DoS and RCE vulnerabilities",
         url: "https://github.com/sparklemotion/nokogiri/issues/1673",
      },
      "gitlab.com": {
         advisories: [
            {
               affected_range: "=2.9.4",
               affected_versions: "Version 2.9.4",
               cvss_v2: "AV:N/AC:L/Au:N/C:N/I:N/A:P",
               cvss_v3: "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
               cwe_ids: [
                  "CWE-1035",
                  "CWE-125",
                  "CWE-937",
               ],
               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.",
               fixed_versions: [],
               identifier: "CVE-2017-9050",
               identifiers: [
                  "CVE-2017-9050",
               ],
               not_impacted: "",
               package_slug: "gem/nokogiri",
               pubdate: "2017-05-18",
               solution: "Unfortunately, there is no solution available yet.",
               title: "Out-of-bounds Read",
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                  "https://nvd.nist.gov/vuln/detail/CVE-2017-9050",
                  "http://www.openwall.com/lists/oss-security/2017/05/15/1",
                  "http://www.securityfocus.com/bid/98568",
                  "http://www.debian.org/security/2017/dsa-3952",
                  "https://security.gentoo.org/glsa/201711-01",
                  "https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4@%3Cissues.bookkeeper.apache.org%3E",
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               cvss_v2: "AV:N/AC:L/Au:N/C:N/I:N/A:P",
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               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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               identifier: "CVE-2017-9050",
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               package_slug: "nuget/libxml2",
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               title: "Out-of-bounds Read",
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         impact: {
            baseMetricV2: {
               acInsufInfo: true,
               cvssV2: {
                  accessComplexity: "LOW",
                  accessVector: "NETWORK",
                  authentication: "NONE",
                  availabilityImpact: "PARTIAL",
                  baseScore: 5,
                  confidentialityImpact: "NONE",
                  integrityImpact: "NONE",
                  vectorString: "AV:N/AC:L/Au:N/C:N/I:N/A:P",
                  version: "2.0",
               },
               exploitabilityScore: 10,
               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: "2021-06-29T15:15Z",
         publishedDate: "2017-05-18T06:29Z",
      },
   },
}


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