rhsa-2021_2116
Vulnerability from csaf_redhat
Published
2021-05-26 11:48
Modified
2024-11-05 23:37
Summary
Red Hat Security Advisory: Red Hat OpenStack Platform 16.1.6 (python-httplib2) security update

Notes

Topic
An update for python-httplib2 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
A comprehensive HTTP client library that supports many features left out of other HTTP libraries. Security Fix(es): * CRLF injection via an attacker controlled unescaped part of uri for httplib2.Http.request function (CVE-2020-11078) * Regular expression denial of service via malicious header (CVE-2021-21240) 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": "Moderate"
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    "distribution": {
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      {
        "category": "summary",
        "text": "An update for python-httplib2 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"
      },
      {
        "category": "general",
        "text": "A comprehensive HTTP client library that supports many features left out of other HTTP libraries.\n\nSecurity Fix(es):\n\n* CRLF injection via an attacker controlled unescaped part of uri for\nhttplib2.Http.request function (CVE-2020-11078)\n\n* Regular expression denial of service via malicious header\n(CVE-2021-21240)\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"
      },
      {
        "category": "legal_disclaimer",
        "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.",
        "title": "Terms of Use"
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    "title": "Red Hat Security Advisory: Red Hat OpenStack Platform 16.1.6 (python-httplib2) security update",
    "tracking": {
      "current_release_date": "2024-11-05T23:37:46+00:00",
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      "id": "RHSA-2021:2116",
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  "vulnerabilities": [
    {
      "cve": "CVE-2020-11078",
      "cwe": {
        "id": "CWE-113",
        "name": "Improper Neutralization of CRLF Sequences in HTTP Headers (\u0027HTTP Request/Response Splitting\u0027)"
      },
      "discovery_date": "2020-05-20T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "1845937"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in python-httplib2. An attacker controlling an unescaped part of uri for `httplib2.Http.request()` could change request headers and body, send additional hidden requests to same server. This vulnerability impacts software that uses httplib2 with uri constructed by string concatenation, as opposed to proper urllib building with escaping.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "python-httplib2: CRLF injection via an attacker controlled unescaped part of uri for httplib2.Http.request function",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "While Red Hat Quay 3.0, and 3.1 used the httplib2 library it was removed in versions 3.2 and later. Upgrade to 3.2 or later to fix this vulnerability in Red Hat Quay.\n\nRed Hat Gluster Storage 3 delivers the affected version of the python-httplib2 library. However the library is not used by Gluster hence the impact by this vulnerability is low.\n\nThis issue affects the version of the python-httplib2 library as shipped with Red Hat Ceph Storage (RHCS) version 2. Ceph-2 has reached End of Extended Life Cycle Support and no longer fixing moderates/lows.\n\nThere\u0027s currently no known vector to exploit this when using Python versions with CVE-2019-9740 and CVE-2019-9947 fixed.\n\nIn Red Hat OpenStack Platform13, because the flaw has a lower impact and the package\u0027s indirect usage in RHOSP cannot be exploited, no update will be provided at this time for the RHOSP python-httplib2 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": {
        "fixed": [
          "8Base-RHOS-CINDERLIB-16.1:python-httplib2-0:0.13.1-2.el8ost.src",
          "8Base-RHOS-CINDERLIB-16.1:python3-httplib2-0:0.13.1-2.el8ost.noarch"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2020-11078"
        },
        {
          "category": "external",
          "summary": "RHBZ#1845937",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1845937"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2020-11078",
          "url": "https://www.cve.org/CVERecord?id=CVE-2020-11078"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2020-11078",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-11078"
        },
        {
          "category": "external",
          "summary": "https://github.com/httplib2/httplib2/security/advisories/GHSA-gg84-qgv9-w4pq",
          "url": "https://github.com/httplib2/httplib2/security/advisories/GHSA-gg84-qgv9-w4pq"
        }
      ],
      "release_date": "2020-05-20T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2021-05-26T11:48:28+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": [
            "8Base-RHOS-CINDERLIB-16.1:python-httplib2-0:0.13.1-2.el8ost.src",
            "8Base-RHOS-CINDERLIB-16.1:python3-httplib2-0:0.13.1-2.el8ost.noarch"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2021:2116"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 6.8,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:N",
            "version": "3.1"
          },
          "products": [
            "8Base-RHOS-CINDERLIB-16.1:python-httplib2-0:0.13.1-2.el8ost.src",
            "8Base-RHOS-CINDERLIB-16.1:python3-httplib2-0:0.13.1-2.el8ost.noarch"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "python-httplib2: CRLF injection via an attacker controlled unescaped part of uri for httplib2.Http.request function"
    },
    {
      "cve": "CVE-2021-21240",
      "cwe": {
        "id": "CWE-400",
        "name": "Uncontrolled Resource Consumption"
      },
      "discovery_date": "2021-02-09T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "1926885"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "An uncontrolled resource consumption flaw as found in python-httplib2, due to a flawed regular expression used while parsing the WWW-Authenticate header in an HTTP response. This flaw allows a malicious or compromised server to reply with a crafted sequence of characters in the WWW-Authenticate header, leading to a denial of service of the httplib2 client accessing the server. The highest threat from this vulnerability is to system availability.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "python-httplib2: Regular expression denial of service via malicious header",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "This flaw has been rated as having a security impact of Low, because it requires a malicious or compromised server in order to be exploited, and it only affects the HTTP client. In Red Hat OpenStack Platform 13, 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 13 python-httplib2 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": {
        "fixed": [
          "8Base-RHOS-CINDERLIB-16.1:python-httplib2-0:0.13.1-2.el8ost.src",
          "8Base-RHOS-CINDERLIB-16.1:python3-httplib2-0:0.13.1-2.el8ost.noarch"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2021-21240"
        },
        {
          "category": "external",
          "summary": "RHBZ#1926885",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1926885"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2021-21240",
          "url": "https://www.cve.org/CVERecord?id=CVE-2021-21240"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2021-21240",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-21240"
        },
        {
          "category": "external",
          "summary": "https://github.com/httplib2/httplib2/security/advisories/GHSA-93xj-8mrv-444m",
          "url": "https://github.com/httplib2/httplib2/security/advisories/GHSA-93xj-8mrv-444m"
        }
      ],
      "release_date": "2021-01-09T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2021-05-26T11:48:28+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": [
            "8Base-RHOS-CINDERLIB-16.1:python-httplib2-0:0.13.1-2.el8ost.src",
            "8Base-RHOS-CINDERLIB-16.1:python3-httplib2-0:0.13.1-2.el8ost.noarch"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2021:2116"
        },
        {
          "category": "workaround",
          "details": "Use strict mode to parse WWW-Authenticate headers. This can be done by setting `httplib2.USE_WWW_AUTH_STRICT_PARSING = True`. Please note, however, that strict mode might lead to bad results in case of ill-formed header values.",
          "product_ids": [
            "8Base-RHOS-CINDERLIB-16.1:python-httplib2-0:0.13.1-2.el8ost.src",
            "8Base-RHOS-CINDERLIB-16.1:python3-httplib2-0:0.13.1-2.el8ost.noarch"
          ]
        }
      ],
      "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": [
            "8Base-RHOS-CINDERLIB-16.1:python-httplib2-0:0.13.1-2.el8ost.src",
            "8Base-RHOS-CINDERLIB-16.1:python3-httplib2-0:0.13.1-2.el8ost.noarch"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Low"
        }
      ],
      "title": "python-httplib2: Regular expression denial of service via malicious header"
    }
  ]
}


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