GSD-2021-43818

Vulnerability from gsd - Updated: 2023-12-13 01:23
Details
lxml is a library for processing XML and HTML in the Python language. Prior to version 4.6.5, the HTML Cleaner in lxml.html lets certain crafted script content pass through, as well as script content in SVG files embedded using data URIs. Users that employ the HTML cleaner in a security relevant context should upgrade to lxml 4.6.5 to receive a patch. There are no known workarounds available.
Aliases
Aliases

{
  "GSD": {
    "alias": "CVE-2021-43818",
    "description": "lxml is a library for processing XML and HTML in the Python language. Prior to version 4.6.5, the HTML Cleaner in lxml.html lets certain crafted script content pass through, as well as script content in SVG files embedded using data URIs. Users that employ the HTML cleaner in a security relevant context should upgrade to lxml 4.6.5 to receive a patch. There are no known workarounds available.",
    "id": "GSD-2021-43818",
    "references": [
      "https://www.suse.com/security/cve/CVE-2021-43818.html",
      "https://www.debian.org/security/2022/dsa-5043",
      "https://ubuntu.com/security/CVE-2021-43818",
      "https://advisories.mageia.org/CVE-2021-43818.html",
      "https://security.archlinux.org/CVE-2021-43818",
      "https://linux.oracle.com/cve/CVE-2021-43818.html",
      "https://access.redhat.com/errata/RHSA-2022:1664",
      "https://access.redhat.com/errata/RHSA-2022:1763",
      "https://access.redhat.com/errata/RHSA-2022:1764",
      "https://access.redhat.com/errata/RHSA-2022:1821",
      "https://access.redhat.com/errata/RHSA-2022:1932",
      "https://access.redhat.com/errata/RHSA-2022:5498"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
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      ],
      "details": "lxml is a library for processing XML and HTML in the Python language. Prior to version 4.6.5, the HTML Cleaner in lxml.html lets certain crafted script content pass through, as well as script content in SVG files embedded using data URIs. Users that employ the HTML cleaner in a security relevant context should upgrade to lxml 4.6.5 to receive a patch. There are no known workarounds available.",
      "id": "GSD-2021-43818",
      "modified": "2023-12-13T01:23:25.922276Z",
      "schema_version": "1.4.0"
    }
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          "package_slug": "pypi/lxml",
          "pubdate": "2021-12-13",
          "solution": "Upgrade to version 4.6.5 or above.",
          "title": "Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)",
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          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "MEDIUM",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 6.8,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
            "version": "2.0"
          },
          "exploitabilityScore": 8.6,
          "impactScore": 6.4,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": true
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 7.1,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L",
            "version": "3.1"
          },
          "exploitabilityScore": 2.8,
          "impactScore": 3.7
        }
      },
      "lastModifiedDate": "2022-12-09T16:38Z",
      "publishedDate": "2021-12-13T18:15Z"
    }
  }
}


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  • 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.


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Detection rules are retrieved from Rulezet.

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