Vulnerability-Lookup

RHSA-2022:0992

Vulnerability from csaf_redhat - Published: 2022-03-23 22:12 - Updated: 2025-11-21 18:29

Summary

Red Hat Security Advisory: Red Hat OpenStack Platform 16.2 (python-twisted) security update

Severity

Important

Notes

Topic: An update for python-twisted is now available for Red Hat OpenStack Platform 16.2 (Train). 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: Twisted is a networking engine written in Python, supporting numerous protocols. It contains a web server, numerous chat clients, chat servers, mail servers and more. Security Fix(es): * Secret exposure in cross-origin redirects of python-twisted (CVE-2022-21712) * SSH client and server denial of service during SSH handshake (CVE-2022-21716) 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.

CVE-2022-21712

A flaw was found in the twisted Python library when WebClient redirects via the RedirectAgent and BrowserLikeRedirectAgent methods. This flaw allows an attacker to take advantage of these cross-origin redirects and leak the cookie and authorization headers.

7.5 (High)


                
                  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CWE-346 - Origin Validation Error

Affected products

Fixed 7 products

Product	Version	Remediation
Unresolved product id: 8Base-RHOS-16.2:python-twisted-0:16.4.1-19.el8ost.src	—	Vendor Fix fix
Unresolved product id: 8Base-RHOS-16.2:python-twisted-debugsource-0:16.4.1-19.el8ost.ppc64le	—	Vendor Fix fix
Unresolved product id: 8Base-RHOS-16.2:python-twisted-debugsource-0:16.4.1-19.el8ost.x86_64	—	Vendor Fix fix
Unresolved product id: 8Base-RHOS-16.2:python3-twisted-0:16.4.1-19.el8ost.ppc64le	—	Vendor Fix fix
Unresolved product id: 8Base-RHOS-16.2:python3-twisted-0:16.4.1-19.el8ost.x86_64	—	Vendor Fix fix
Unresolved product id: 8Base-RHOS-16.2:python3-twisted-debuginfo-0:16.4.1-19.el8ost.ppc64le	—	Vendor Fix fix
Unresolved product id: 8Base-RHOS-16.2:python3-twisted-debuginfo-0:16.4.1-19.el8ost.x86_64	—	Vendor Fix fix

Threats

Impact Moderate

CVE-2022-21716

An uncontrolled resource consumption flaw was found in python-twisted in the dataReceived() function. This flaw allows an unauthenticated, remote attacker to send a simple command to use all available memory and crash the server.

7.5 (High)


                
                  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE-770 - Allocation of Resources Without Limits or Throttling

Affected products

Fixed 7 products, the same list as for CVE-2022-21712

Threats

Impact Important

References

14 references

URL	Category
https://access.redhat.com/errata/RHSA-2022:0992	self
https://access.redhat.com/security/updates/classi…	external
https://bugzilla.redhat.com/show_bug.cgi?id=2051865	external
https://bugzilla.redhat.com/show_bug.cgi?id=2060960	external
https://security.access.redhat.com/data/csaf/v2/a…	self
https://access.redhat.com/security/cve/CVE-2022-21712	self
https://bugzilla.redhat.com/show_bug.cgi?id=2051865	external
https://www.cve.org/CVERecord?id=CVE-2022-21712	external
https://nvd.nist.gov/vuln/detail/CVE-2022-21712	external
https://github.com/twisted/twisted/security/advis…	external
https://access.redhat.com/security/cve/CVE-2022-21716	self
https://bugzilla.redhat.com/show_bug.cgi?id=2060960	external
https://www.cve.org/CVERecord?id=CVE-2022-21716	external
https://nvd.nist.gov/vuln/detail/CVE-2022-21716	external

JSON

To clipboard

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        {
          "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-16.2:python-twisted-0:16.4.1-19.el8ost.src",
          "8Base-RHOS-16.2:python-twisted-debugsource-0:16.4.1-19.el8ost.ppc64le",
          "8Base-RHOS-16.2:python-twisted-debugsource-0:16.4.1-19.el8ost.x86_64",
          "8Base-RHOS-16.2:python3-twisted-0:16.4.1-19.el8ost.ppc64le",
          "8Base-RHOS-16.2:python3-twisted-0:16.4.1-19.el8ost.x86_64",
          "8Base-RHOS-16.2:python3-twisted-debuginfo-0:16.4.1-19.el8ost.ppc64le",
          "8Base-RHOS-16.2:python3-twisted-debuginfo-0:16.4.1-19.el8ost.x86_64"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2022-21716"
        },
        {
          "category": "external",
          "summary": "RHBZ#2060960",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2060960"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2022-21716",
          "url": "https://www.cve.org/CVERecord?id=CVE-2022-21716"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2022-21716",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-21716"
        }
      ],
      "release_date": "2022-03-03T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2022-03-23T22:12:24+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",
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            "8Base-RHOS-16.2:python-twisted-debugsource-0:16.4.1-19.el8ost.x86_64",
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            "8Base-RHOS-16.2:python3-twisted-debuginfo-0:16.4.1-19.el8ost.ppc64le",
            "8Base-RHOS-16.2:python3-twisted-debuginfo-0:16.4.1-19.el8ost.x86_64"
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          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2022:0992"
        }
      ],
      "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-16.2:python-twisted-0:16.4.1-19.el8ost.src",
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            "8Base-RHOS-16.2:python3-twisted-debuginfo-0:16.4.1-19.el8ost.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "python-twisted: SSH client and server denial of service during SSH handshake"
    }
  ]
}

CVE-2022-21712 (GCVE-0-2022-21712)

Vulnerability from cvelistv5 – Published: 2022-02-07 00:00 – Updated: 2025-04-23 19:07

Title

Cookie and header exposure in twisted

Summary

twisted is an event-driven networking engine written in Python. In affected versions twisted exposes cookies and authorization headers when following cross-origin redirects. This issue is present in the `twited.web.RedirectAgent` and `twisted.web. BrowserLikeRedirectAgent` functions. Users are advised to upgrade. There are no known workarounds.

Severity

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-04-23 15:57 UTC

CWE

CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor

Assigner

GitHub_M mitre root

References

7 references

URL	Tags
https://github.com/twisted/twisted/security/advis…	x_refsource_CONFIRM
https://github.com/twisted/twisted/commit/af8fe78…	x_refsource_MISC
https://github.com/twisted/twisted/releases/tag/t…	x_refsource_MISC
https://lists.debian.org/debian-lts-announce/2022…	mailing-listx_transferred
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_transferred
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_transferred
https://security.gentoo.org/glsa/202301-02	vendor-advisoryx_transferred

Impacted products

1 product

Vendor	Product	Version
twisted	twisted	Affected: >= 11.1.0, < 22.1.0

Show details on NVD website

JSON

To clipboard

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CVE-2022-21716 (GCVE-0-2022-21716)

Vulnerability from cvelistv5 – Published: 2022-03-03 00:00 – Updated: 2025-04-22 18:21

Title

Buffer Overflow in Twisted

Summary

Twisted is an event-based framework for internet applications, supporting Python 3.6+. Prior to 22.2.0, Twisted SSH client and server implement is able to accept an infinite amount of data for the peer's SSH version identifier. This ends up with a buffer using all the available memory. The attach is a simple as `nc -rv localhost 22 < /dev/zero`. A patch is available in version 22.2.0. There are currently no known workarounds.

Severity

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

SSVC

Exploitation: poc Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-04-22 15:42 UTC

CWE

CWE-120 - Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

Assigner

GitHub_M mitre root

References

9 references

URL	Tags
https://github.com/twisted/twisted/security/advis…
https://github.com/twisted/twisted/commit/89c395e…
https://github.com/twisted/twisted/releases/tag/t…
https://twistedmatrix.com/trac/ticket/10284
https://lists.debian.org/debian-lts-announce/2022…	mailing-list
https://www.oracle.com/security-alerts/cpuapr2022.html
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://security.gentoo.org/glsa/202301-02	vendor-advisory

Impacted products

1 product

Vendor	Product	Version
twisted	twisted	Affected: < 22.2.0

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
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.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

RHSA-2022:0992

CVE-2022-21712 (GCVE-0-2022-21712)

CVE-2022-21716 (GCVE-0-2022-21716)

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Related by attack behaviour