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CVE-2021-20270

Estado: ModificadaAlta (7.5)—

An infinite loop in SMLLexer in Pygments versions 1.5 to 2.7.3 may lead to denial of service when performing syntax highlighting of a Standard ML (SML) source file, as demonstrated by input that only contains the "exception" keyword.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (7)

Debian — Debian LinuxFedoraproject — FedoraPygments — PygmentsRedhat — Enterprise LinuxRedhat — Openshift Container PlatformRedhat — Openstack PlatformRedhat — Software Collections

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2021-20270",
  "cveTags": [],
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          "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
          "authentication": "NONE",
          "integrityImpact": "NONE",
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          "confidentialityImpact": "NONE"
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          "userInteraction": "NONE",
          "attackComplexity": "LOW",
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  "affected": [
    {
      "source": "secalert@redhat.com",
      "affectedData": [
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      "lang": "en",
      "value": "An infinite loop in SMLLexer in Pygments versions 1.5 to 2.7.3 may lead to denial of service when performing syntax highlighting of a Standard ML (SML) source file, as demonstrated by input that only contains the \"exception\" keyword."
    },
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      "value": "Un bucle infinito en SMLLexer en Pygments versiones 1.5 hasta 2.7.3, puede conllevar a una denegación de servicio cuando se lleva a cabo el resaltado de sintaxis de un archivo fuente de Standard ML (SML), como es demostrado por la entrada que solo contiene la palabra clave \"exception\""
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