rhsa-2021_5071
Vulnerability from csaf_redhat
Published
2021-12-09 20:20
Modified
2024-11-22 17:11
Summary
Red Hat Security Advisory: Red Hat OpenStack Platform 16.1 (python-eventlet) security update

Notes

Topic
An update for python-eventlet is now available for Red Hat OpenStack Platform 16.1 (Train). 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
Eventlet is a networking library written in Python. It achieves high scalability by using non-blocking io while at the same time retaining high programmer usability by using coroutines to make the non-blocking io operations appear blocking at the source code level. Security Fix(es): * improper handling of highly compressed data and memory allocation with excessive size allows DoS (CVE-2021-21419) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page 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": "An update for python-eventlet is now available for Red Hat OpenStack\nPlatform 16.1 (Train).\n\nRed Hat Product Security has rated this update as having a security impact\nof Moderate. A Common Vulnerability Scoring System (CVSS) base score, which\ngives a detailed severity rating, is available for each vulnerability from\nthe CVE link(s) in the References section.",
        "title": "Topic"
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      {
        "category": "general",
        "text": "Eventlet is a networking library written in Python. It achieves high\nscalability by using non-blocking io while at the same time retaining high\nprogrammer usability by using coroutines to make the non-blocking io\noperations appear blocking at the source code\nlevel.\n\nSecurity Fix(es):\n\n* improper handling of highly compressed data and memory allocation with\nexcessive size allows DoS (CVE-2021-21419)\n\nFor more details about the security issue(s), including the impact, a CVSS\nscore, acknowledgments, and other related information, refer to the CVE\npage listed in the References section.",
        "title": "Details"
      },
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        "text": "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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  "vulnerabilities": [
    {
      "cve": "CVE-2021-21419",
      "cwe": {
        "id": "CWE-400",
        "name": "Uncontrolled Resource Consumption"
      },
      "discovery_date": "2021-05-07T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "1958407"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in eventlet. If an unauthenticated user manages to send large websocket frames or highly compressed data frames that can lead to memory exhaustion. An attacker could use this flaw to cause a denial of service (DoS).",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "python-eventlet: improper handling of highly compressed data and memory allocation with excessive size allows DoS",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "* In OpenShift Container Platform 4, the python-eventlet package is only used in Ironic container images, used for Baremetal provisioning, and Kuryr SDN container images, used for deployments on OpenStack.\n\n* In Red Hat Gluster Storage 3, python-eventlet package was primarily shipped as a dependency of openstack-swift. However, Openstack Swift is no longer supported with the recent release of Red Hat Gluster Storage 3.5.\n\n* Because the flaw\u0027s impact is lower and Red Hat OpenStack Platform 13 will be retiring soon, no update will be provided at this time for the RHOSP13 python-eventlet 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"
        }
      ],
      "product_status": {
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        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2021-21419"
        },
        {
          "category": "external",
          "summary": "RHBZ#1958407",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1958407"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2021-21419",
          "url": "https://www.cve.org/CVERecord?id=CVE-2021-21419"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2021-21419",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-21419"
        }
      ],
      "release_date": "2021-05-06T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2021-12-09T20:20:27+00:00",
          "details": "For details on how to apply this update, which includes the changes\ndescribed in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258",
          "product_ids": [
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            "8Base-RHOS-16.1:python3-eventlet-0:0.25.2-5.el8ost.1.noarch",
            "8Base-RHOS-CINDERLIB-16.1:python-eventlet-0:0.25.2-5.el8ost.1.src",
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            "8Base-RHOS-DEPLOYMENT-TOOLS-16.1:python-eventlet-0:0.25.2-5.el8ost.1.src",
            "8Base-RHOS-DEPLOYMENT-TOOLS-16.1:python3-eventlet-0:0.25.2-5.el8ost.1.noarch"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2021:5071"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "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:L",
            "version": "3.1"
          },
          "products": [
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            "8Base-RHOS-DEPLOYMENT-TOOLS-16.1:python-eventlet-0:0.25.2-5.el8ost.1.src",
            "8Base-RHOS-DEPLOYMENT-TOOLS-16.1:python3-eventlet-0:0.25.2-5.el8ost.1.noarch"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "python-eventlet: improper handling of highly compressed data and memory allocation with excessive size allows DoS"
    }
  ]
}


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