fkie_cve-2019-20454
Vulnerability from fkie_nvd
Published
2020-02-14 14:15
Modified
2024-11-21 04:38
Summary
An out-of-bounds read was discovered in PCRE before 10.34 when the pattern \X is JIT compiled and used to match specially crafted subjects in non-UTF mode. Applications that use PCRE to parse untrusted input may be vulnerable to this flaw, which would allow an attacker to crash the application. The flaw occurs in do_extuni_no_utf in pcre2_jit_compile.c.
References
cve@mitre.orghttps://bugs.exim.org/show_bug.cgi?id=2421Issue Tracking, Permissions Required, Third Party Advisory
cve@mitre.orghttps://bugs.php.net/bug.php?id=78338Exploit, Issue Tracking, Third Party Advisory
cve@mitre.orghttps://bugzilla.redhat.com/show_bug.cgi?id=1735494Issue Tracking, Patch, Third Party Advisory
cve@mitre.orghttps://lists.debian.org/debian-lts-announce/2023/03/msg00014.htmlMailing List, Third Party Advisory
cve@mitre.orghttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OQRAHYHLRNMBTPR3KXVM27NSZP3KTOPI/Mailing List, Third Party Advisory
cve@mitre.orghttps://security.gentoo.org/glsa/202006-16Third Party Advisory
cve@mitre.orghttps://vcs.pcre.org/pcre2?view=revision&revision=1092Broken Link, Patch
af854a3a-2127-422b-91ae-364da2661108https://bugs.exim.org/show_bug.cgi?id=2421Issue Tracking, Permissions Required, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://bugs.php.net/bug.php?id=78338Exploit, Issue Tracking, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=1735494Issue Tracking, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2023/03/msg00014.htmlMailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OQRAHYHLRNMBTPR3KXVM27NSZP3KTOPI/Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://security.gentoo.org/glsa/202006-16Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://vcs.pcre.org/pcre2?view=revision&revision=1092Broken Link, Patch



{
   configurations: [
      {
         nodes: [
            {
               cpeMatch: [
                  {
                     criteria: "cpe:2.3:a:pcre:pcre2:*:*:*:*:*:*:*:*",
                     matchCriteriaId: "74DDD7EA-B855-4B1E-BFEA-27D65C2483FE",
                     versionEndExcluding: "10.34",
                     versionStartIncluding: "10.31",
                     vulnerable: true,
                  },
               ],
               negate: false,
               operator: "OR",
            },
         ],
      },
      {
         nodes: [
            {
               cpeMatch: [
                  {
                     criteria: "cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*",
                     matchCriteriaId: "80F0FA5D-8D3B-4C0E-81E2-87998286AF33",
                     vulnerable: true,
                  },
               ],
               negate: false,
               operator: "OR",
            },
         ],
      },
      {
         nodes: [
            {
               cpeMatch: [
                  {
                     criteria: "cpe:2.3:a:splunk:universal_forwarder:*:*:*:*:*:*:*:*",
                     matchCriteriaId: "5722E753-75DE-4944-A11B-556CB299B57D",
                     versionEndExcluding: "8.2.12",
                     versionStartIncluding: "8.2.0",
                     vulnerable: true,
                  },
                  {
                     criteria: "cpe:2.3:a:splunk:universal_forwarder:*:*:*:*:*:*:*:*",
                     matchCriteriaId: "DC0F9351-81A4-4FEA-B6B5-6E960A933D32",
                     versionEndExcluding: "9.0.6",
                     versionStartIncluding: "9.0.0",
                     vulnerable: true,
                  },
                  {
                     criteria: "cpe:2.3:a:splunk:universal_forwarder:9.1.0:*:*:*:*:*:*:*",
                     matchCriteriaId: "EED24E67-2957-4C1B-8FEA-E2D2FE7B97FC",
                     vulnerable: true,
                  },
               ],
               negate: false,
               operator: "OR",
            },
         ],
      },
   ],
   cveTags: [],
   descriptions: [
      {
         lang: "en",
         value: "An out-of-bounds read was discovered in PCRE before 10.34 when the pattern \\X is JIT compiled and used to match specially crafted subjects in non-UTF mode. Applications that use PCRE to parse untrusted input may be vulnerable to this flaw, which would allow an attacker to crash the application. The flaw occurs in do_extuni_no_utf in pcre2_jit_compile.c.",
      },
      {
         lang: "es",
         value: "Se detectó una lectura fuera de límites en PCRE versiones anteriores a 10.34, cuando el patrón \\X es compilado en JIT y usado para hacer coincidir temas especialmente diseñados en modo no UTF. Las aplicaciones que utilizan PCRE para analizar entradas no confiables pueden ser vulnerables a este fallo, lo que permitiría a un atacante bloquear la aplicación. El fallo ocurre en la función do_extuni_no_utf en el archivo pcre2_jit_compile.c.",
      },
   ],
   id: "CVE-2019-20454",
   lastModified: "2024-11-21T04:38:31.003",
   metrics: {
      cvssMetricV2: [
         {
            acInsufInfo: false,
            baseSeverity: "MEDIUM",
            cvssData: {
               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,
            source: "nvd@nist.gov",
            type: "Primary",
            userInteractionRequired: false,
         },
      ],
      cvssMetricV30: [
         {
            cvssData: {
               attackComplexity: "HIGH",
               attackVector: "LOCAL",
               availabilityImpact: "HIGH",
               baseScore: 5.1,
               baseSeverity: "MEDIUM",
               confidentialityImpact: "NONE",
               integrityImpact: "NONE",
               privilegesRequired: "NONE",
               scope: "UNCHANGED",
               userInteraction: "NONE",
               vectorString: "CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
               version: "3.0",
            },
            exploitabilityScore: 1.4,
            impactScore: 3.6,
            source: "cve@mitre.org",
            type: "Secondary",
         },
      ],
      cvssMetricV31: [
         {
            cvssData: {
               attackComplexity: "LOW",
               attackVector: "NETWORK",
               availabilityImpact: "HIGH",
               baseScore: 7.5,
               baseSeverity: "HIGH",
               confidentialityImpact: "NONE",
               integrityImpact: "NONE",
               privilegesRequired: "NONE",
               scope: "UNCHANGED",
               userInteraction: "NONE",
               vectorString: "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
               version: "3.1",
            },
            exploitabilityScore: 3.9,
            impactScore: 3.6,
            source: "nvd@nist.gov",
            type: "Primary",
         },
      ],
   },
   published: "2020-02-14T14:15:10.593",
   references: [
      {
         source: "cve@mitre.org",
         tags: [
            "Issue Tracking",
            "Permissions Required",
            "Third Party Advisory",
         ],
         url: "https://bugs.exim.org/show_bug.cgi?id=2421",
      },
      {
         source: "cve@mitre.org",
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            "Issue Tracking",
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      },
      {
         source: "cve@mitre.org",
         tags: [
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            "Third Party Advisory",
         ],
         url: "https://lists.debian.org/debian-lts-announce/2023/03/msg00014.html",
      },
      {
         source: "cve@mitre.org",
         tags: [
            "Mailing List",
            "Third Party Advisory",
         ],
         url: "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OQRAHYHLRNMBTPR3KXVM27NSZP3KTOPI/",
      },
      {
         source: "cve@mitre.org",
         tags: [
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         url: "https://security.gentoo.org/glsa/202006-16",
      },
      {
         source: "cve@mitre.org",
         tags: [
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            "Patch",
         ],
         url: "https://vcs.pcre.org/pcre2?view=revision&revision=1092",
      },
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         ],
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      },
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      },
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      {
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         url: "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OQRAHYHLRNMBTPR3KXVM27NSZP3KTOPI/",
      },
      {
         source: "af854a3a-2127-422b-91ae-364da2661108",
         tags: [
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         url: "https://security.gentoo.org/glsa/202006-16",
      },
      {
         source: "af854a3a-2127-422b-91ae-364da2661108",
         tags: [
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         ],
         url: "https://vcs.pcre.org/pcre2?view=revision&revision=1092",
      },
   ],
   sourceIdentifier: "cve@mitre.org",
   vulnStatus: "Modified",
   weaknesses: [
      {
         description: [
            {
               lang: "en",
               value: "CWE-125",
            },
         ],
         source: "nvd@nist.gov",
         type: "Primary",
      },
   ],
}


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