{
  "id": "CVE-2017-12883",
  "sourceIdentifier": "cve@mitre.org",
  "published": "2017-09-19T18:29:00.197",
  "lastModified": "2025-04-20T01:37:25.860",
  "vulnStatus": "Deferred",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Buffer overflow in the S_grok_bslash_N function in regcomp.c in Perl 5 before 5.24.3-RC1 and 5.26.x before 5.26.1-RC1 allows remote attackers to disclose sensitive information or cause a denial of service (application crash) via a crafted regular expression with an invalid '\\N{U+...}' escape."
    },
    {
      "lang": "es",
      "value": "Un Desbordamiento de b\u00fafer en la funci\u00f3n S_grok_bslash_N en el archivo regcomp.c en Perl versi\u00f3n 5 anterior a 5.24.3-RC1 y versi\u00f3n 5.26.x anterior a 5.26.1-RC1, permite a los atacantes remotos divulgar informaci\u00f3n confidencial o causar una denegaci\u00f3n de servicio (bloqueo de aplicaci\u00f3n) por medio de una expresi\u00f3n creada con un escape '\\N{U+...}' inv\u00e1lido."
    }
  ],
  "metrics": {
    "cvssMetricV30": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "3.0",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
          "baseScore": 9.1,
          "baseSeverity": "CRITICAL",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 5.2
      }
    ],
    "cvssMetricV2": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "2.0",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:P",
          "baseScore": 6.4,
          "accessVector": "NETWORK",
          "accessComplexity": "LOW",
          "authentication": "NONE",
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "NONE",
          "availabilityImpact": "PARTIAL"
        },
        "baseSeverity": "MEDIUM",
        "exploitabilityScore": 10.0,
        "impactScore": 4.9,
        "acInsufInfo": true,
        "obtainAllPrivilege": false,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-119"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:perl:perl:*:*:*:*:*:*:*:*",
              "versionEndIncluding": "5.24.2",
              "matchCriteriaId": "DB276E2C-622C-45EB-8378-35751366049F"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:perl:perl:5.26.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "B71CAECA-2A6A-4604-863F-3C1C055FB1CE"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "http://mirror.cucumberlinux.com/cucumber/cucumber-1.0/source/lang-base/perl/patches/CVE-2017-12883.patch",
      "source": "cve@mitre.org",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ]
    },
    {
      "url": "http://www.debian.org/security/2017/dsa-3982",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securityfocus.com/bid/100852",
      "source": "cve@mitre.org",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ]
    },
    {
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1492093",
      "source": "cve@mitre.org",
      "tags": [
        "Issue Tracking",
        "Patch",
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      ]
    },
    {
      "url": "https://perl5.git.perl.org/perl.git/commitdiff/2be4edede4ae226e2eebd4eff28cedd2041f300f#patch1",
      "source": "cve@mitre.org",
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    {
      "url": "https://perl5.git.perl.org/perl.git/log/refs/tags/v5.24.3-RC1",
      "source": "cve@mitre.org",
      "tags": [
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    {
      "url": "https://perl5.git.perl.org/perl.git/log/refs/tags/v5.26.1-RC1",
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    },
    {
      "url": "https://rt.perl.org/Public/Bug/Display.html?id=131598",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://security.netapp.com/advisory/ntap-20180426-0001/",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://www.oracle.com/security-alerts/cpujul2020.html",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://mirror.cucumberlinux.com/cucumber/cucumber-1.0/source/lang-base/perl/patches/CVE-2017-12883.patch",
      "source": "af854a3a-2127-422b-91ae-364da2661108",
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    {
      "url": "http://www.debian.org/security/2017/dsa-3982",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
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    {
      "url": "http://www.securityfocus.com/bid/100852",
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      "tags": [
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    {
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      "url": "https://perl5.git.perl.org/perl.git/log/refs/tags/v5.24.3-RC1",
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    {
      "url": "https://www.oracle.com/security-alerts/cpujul2020.html",
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    }
  ]
}