rhsa-2020_1091
Vulnerability from csaf_redhat
Published
2020-03-31 19:10
Modified
2024-11-15 03:21
Summary
Red Hat Security Advisory: python-twisted-web security update

Notes

Topic
An update for python-twisted-web is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Details
Twisted is an event-based framework for internet applications. Twisted Web is a complete web server, aimed at hosting web applications using Twisted and Python, but fully able to serve static pages too. Security Fix(es): * python-twisted: Improper neutralization of CRLF characters in URIs and HTTP methods (CVE-2019-12387) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. Additional Changes: For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.8 Release Notes linked from the References section.
Terms of Use
This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.


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      "cve": "CVE-2019-12387",
      "cwe": {
        "id": "CWE-113",
        "name": "Improper Neutralization of CRLF Sequences in HTTP Headers (\u0027HTTP Request/Response Splitting\u0027)"
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      "discovery_date": "2019-06-10T00:00:00+00:00",
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          "text": "1719501"
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      "notes": [
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          "category": "description",
          "text": "In Twisted before 19.2.1, twisted.web did not validate or sanitize URIs or HTTP methods, allowing an attacker to inject invalid characters such as CRLF.",
          "title": "Vulnerability description"
        },
        {
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          "text": "python-twisted: Improper neutralization of CRLF characters in URIs and HTTP methods",
          "title": "Vulnerability summary"
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          "category": "other",
          "text": "* This issue does not affect Red Hat Gluster Storage 3 and Red Hat Ceph Storage 2 and 3 because these products do not use the twisted web APIs.\n* This issue does affect Red Hat Enterprise Linux 6. However, because this version is now in Maintenance Support 2 Phase and the flaw has a security impact of Moderate,  it is not currently planned to be addressed in future Red Hat Enterprise Linux 6 updates. For additional information, refer to the Red Hat Enterprise Linux Life Cycle: https://access.redhat.com/support/policy/updates/errata\n* In Red Hat OpenStack Platform, because the flaw has a lower impact and the fix would require a substantial amount of development, no update will be provided at this time for the RHOSP python-twisted package.",
          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
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      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2019-12387"
        },
        {
          "category": "external",
          "summary": "RHBZ#1719501",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1719501"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2019-12387",
          "url": "https://www.cve.org/CVERecord?id=CVE-2019-12387"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2019-12387",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-12387"
        }
      ],
      "release_date": "2019-06-10T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2020-03-31T19:10:27+00:00",
          "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258",
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          "restart_required": {
            "category": "none"
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          "url": "https://access.redhat.com/errata/RHSA-2020:1091"
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      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
            "version": "3.0"
          },
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      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "python-twisted: Improper neutralization of CRLF characters in URIs and HTTP methods"
    }
  ]
}


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