rhsa-2025:8135
Vulnerability from csaf_redhat
Published
2025-05-26 09:43
Modified
2025-08-02 11:34
Summary
Red Hat Security Advisory: python-tornado security update

Notes

Topic
An update for python-tornado is now available for Red Hat Enterprise Linux 10. Red Hat Product Security has rated this update as having a security impact of Important. 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
Python is an interpreted, interactive, object-oriented programming language, which includes modules, classes, exceptions, very high level dynamic data types and dynamic typing. Python supports interfaces to many system calls and libraries, as well as to various windowing systems. Security Fix(es): * tornado: Tornado Multipart Form-Data Denial of Service (CVE-2025-47287) 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.
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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          "text": "tornado: Tornado Multipart Form-Data Denial of Service",
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          "text": "This vulnerability marked as Important because it leverages the synchronous nature of the logging subsystem to induce a DoS condition. Specifically, malformed multipart/form-data payloads cause repeated, blocking log writes, which stall the event loop that underpins Tornado\u2019s asynchronous architecture. Furthermore, because the vulnerable multipart parser is enabled by default, applications that are otherwise well-secured and do not even use file uploads can still be targeted unless they explicitly block these requests at a proxy.",
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          "AppStream-10.0.Z:python3-tornado-debuginfo-0:6.4.2-1.el10_0.1.aarch64",
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          "AppStream-10.0.Z:python3-tornado-debuginfo-0:6.4.2-1.el10_0.1.x86_64"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2025-47287"
        },
        {
          "category": "external",
          "summary": "RHBZ#2366703",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2366703"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2025-47287",
          "url": "https://www.cve.org/CVERecord?id=CVE-2025-47287"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2025-47287",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-47287"
        },
        {
          "category": "external",
          "summary": "https://github.com/tornadoweb/tornado/commit/b39b892bf78fe8fea01dd45199aa88307e7162f3",
          "url": "https://github.com/tornadoweb/tornado/commit/b39b892bf78fe8fea01dd45199aa88307e7162f3"
        },
        {
          "category": "external",
          "summary": "https://github.com/tornadoweb/tornado/security/advisories/GHSA-7cx3-6m66-7c5m",
          "url": "https://github.com/tornadoweb/tornado/security/advisories/GHSA-7cx3-6m66-7c5m"
        }
      ],
      "release_date": "2025-05-15T21:17:55.188000+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2025-05-26T09:43:42+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",
          "product_ids": [
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            "AppStream-10.0.Z:python-tornado-debugsource-0:6.4.2-1.el10_0.1.aarch64",
            "AppStream-10.0.Z:python-tornado-debugsource-0:6.4.2-1.el10_0.1.ppc64le",
            "AppStream-10.0.Z:python-tornado-debugsource-0:6.4.2-1.el10_0.1.s390x",
            "AppStream-10.0.Z:python-tornado-debugsource-0:6.4.2-1.el10_0.1.x86_64",
            "AppStream-10.0.Z:python3-tornado-0:6.4.2-1.el10_0.1.aarch64",
            "AppStream-10.0.Z:python3-tornado-0:6.4.2-1.el10_0.1.ppc64le",
            "AppStream-10.0.Z:python3-tornado-0:6.4.2-1.el10_0.1.s390x",
            "AppStream-10.0.Z:python3-tornado-0:6.4.2-1.el10_0.1.x86_64",
            "AppStream-10.0.Z:python3-tornado-debuginfo-0:6.4.2-1.el10_0.1.aarch64",
            "AppStream-10.0.Z:python3-tornado-debuginfo-0:6.4.2-1.el10_0.1.ppc64le",
            "AppStream-10.0.Z:python3-tornado-debuginfo-0:6.4.2-1.el10_0.1.s390x",
            "AppStream-10.0.Z:python3-tornado-debuginfo-0:6.4.2-1.el10_0.1.x86_64"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2025:8135"
        },
        {
          "category": "workaround",
          "details": "No mitigation is currently available that meets Red Hat Product Security\u2019s standards for usability, deployment, applicability, or stability.",
          "product_ids": [
            "AppStream-10.0.Z:python-tornado-0:6.4.2-1.el10_0.1.src",
            "AppStream-10.0.Z:python-tornado-debugsource-0:6.4.2-1.el10_0.1.aarch64",
            "AppStream-10.0.Z:python-tornado-debugsource-0:6.4.2-1.el10_0.1.ppc64le",
            "AppStream-10.0.Z:python-tornado-debugsource-0:6.4.2-1.el10_0.1.s390x",
            "AppStream-10.0.Z:python-tornado-debugsource-0:6.4.2-1.el10_0.1.x86_64",
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            "AppStream-10.0.Z:python3-tornado-debuginfo-0:6.4.2-1.el10_0.1.s390x",
            "AppStream-10.0.Z:python3-tornado-debuginfo-0:6.4.2-1.el10_0.1.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "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"
          },
          "products": [
            "AppStream-10.0.Z:python-tornado-0:6.4.2-1.el10_0.1.src",
            "AppStream-10.0.Z:python-tornado-debugsource-0:6.4.2-1.el10_0.1.aarch64",
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            "AppStream-10.0.Z:python-tornado-debugsource-0:6.4.2-1.el10_0.1.s390x",
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            "AppStream-10.0.Z:python3-tornado-0:6.4.2-1.el10_0.1.aarch64",
            "AppStream-10.0.Z:python3-tornado-0:6.4.2-1.el10_0.1.ppc64le",
            "AppStream-10.0.Z:python3-tornado-0:6.4.2-1.el10_0.1.s390x",
            "AppStream-10.0.Z:python3-tornado-0:6.4.2-1.el10_0.1.x86_64",
            "AppStream-10.0.Z:python3-tornado-debuginfo-0:6.4.2-1.el10_0.1.aarch64",
            "AppStream-10.0.Z:python3-tornado-debuginfo-0:6.4.2-1.el10_0.1.ppc64le",
            "AppStream-10.0.Z:python3-tornado-debuginfo-0:6.4.2-1.el10_0.1.s390x",
            "AppStream-10.0.Z:python3-tornado-debuginfo-0:6.4.2-1.el10_0.1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "tornado: Tornado Multipart Form-Data Denial of Service"
    }
  ]
}


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