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.
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(CVE-2022-21716)\n\n \n**Affected Packages:** \n\n\npython-twisted-conch\n\n \n**Issue Correction:** \nRun _yum update python-twisted-conch_ to update your system. \n\n\n \n\n\n**New Packages:**\n \n \n i686: \n \u00a0\u00a0\u00a0 python26-twisted-conch-8.2.0-3.2.7.amzn1.i686 \n \u00a0\u00a0\u00a0 python27-twisted-conch-8.2.0-3.2.7.amzn1.i686 \n \n src: \n \u00a0\u00a0\u00a0 python-twisted-conch-8.2.0-3.2.7.amzn1.src \n \n x86_64: \n \u00a0\u00a0\u00a0 python27-twisted-conch-8.2.0-3.2.7.amzn1.x86_64 \n \u00a0\u00a0\u00a0 python26-twisted-conch-8.2.0-3.2.7.amzn1.x86_64 \n \n \n\n### Additional References\n\nRed Hat: [CVE-2022-21716](<https://access.redhat.com/security/cve/CVE-2022-21716>)\n\nMitre: [CVE-2022-21716](<https://vulners.com/cve/CVE-2022-21716>)\n", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "NONE", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "baseScore": 7.5, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2022-05-31T23:47:00", "type": "amazon", "title": "Important: python-twisted-conch", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "NONE", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 5.0, "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 2.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-21716"], "modified": "2022-06-09T18:52:00", "id": "ALAS-2022-1592", "href": "https://alas.aws.amazon.com/ALAS-2022-1592.html", "cvss": {"score": 5.0, "vector": "AV:N/AC:L/Au:N/C:N/I:N/A:P"}}], "nessus": [{"lastseen": "2023-07-16T14:54:25", "description": "The remote SUSE Linux SLES12 / SLES_SAP12 host has a package installed that is affected by a vulnerability as referenced in the SUSE-SU-2022:2117-1 advisory.\n\n - Twisted is an event-based framework for internet applications, supporting Python 3.6+. 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In affected versions twisted exposes\n cookies and authorization headers when following cross-origin redirects. This issue is present in the\n `twited.web.RedirectAgent` and `twisted.web. BrowserLikeRedirectAgent` functions. Users are advised to\n upgrade. There are no known workarounds. (CVE-2022-21712)\n\n - Twisted is an event-based framework for internet applications, supporting Python 3.6+. Prior to 22.2.0,\n Twisted SSH client and server implement is able to accept an infinite amount of data for the peer's SSH\n version identifier. This ends up with a buffer using all the available memory. The attach is a simple as\n `nc -rv localhost 22 < /dev/zero`. A patch is available in version 22.2.0. There are currently no known\n workarounds. (CVE-2022-21716)\n\n - Twisted is an event-based framework for internet applications, supporting Python 3.6+. 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The attack is as simple as `nc -rv localhost 22 < /dev/zero`.\n\n### Patches\n\nThe issue was fix in GitHub commit https://github.com/twisted/twisted/commit/98387b39e9f0b21462f6abc7a1325dc370fcdeb1\n\nA fix is available in Twisted 22.2.0.\n\n### Workarounds\n\n* Limit access to the SSH server only to trusted source IP addresses.\n* Connect over SSH only to trusted destination IP addresses.\n\n### References\n\nReported at https://twistedmatrix.com/trac/ticket/10284\nDiscussions at https://github.com/twisted/twisted/security/advisories/GHSA-rv6r-3f5q-9rgx\n\n### For more information\n\nFound by vin01", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "NONE", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "baseScore": 7.5, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2022-03-03T19:02:08", "type": "github", "title": "Twisted SSH client and server deny of service during SSH handshake.", "bulletinFamily": "software", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "NONE", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 5.0, "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 2.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-21716"], "modified": "2023-09-04T05:05:15", "id": "GHSA-RV6R-3F5Q-9RGX", "href": "https://github.com/advisories/GHSA-rv6r-3f5q-9rgx", "cvss": {"score": 5.0, "vector": "AV:N/AC:L/Au:N/C:N/I:N/A:P"}}], "ibm": [{"lastseen": "2023-06-24T05:50:09", "description": "## Summary\n\nIBM Watson Speech Services Cartridge for IBM Cloud Pak for Data is vulnerableto a denial of service, caused by a buffer overflow in the peer's SSH version identifier, in Twisted (CVE-2022-21716). Twisted is used as part of the Python code used in some of our service components. Please read the details for remediation below.\n\n## Vulnerability Details\n\n** CVEID: **[CVE-2022-21716](<https://vulners.com/cve/CVE-2022-21716>) \n** DESCRIPTION: **Twisted is vulnerable to a denial of service, caused by a buffer overflowin the peer's SSH version identifier. By sending a specially-crafted request, a remote attacker could exploit this vulnerability to consume available memory and crash the server. \nCVSS Base score: 7.5 \nCVSS Temporal Score: See: [ https://exchange.xforce.ibmcloud.com/vulnerabilities/221053](<https://exchange.xforce.ibmcloud.com/vulnerabilities/221053>) for the current score. \nCVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)\n\n## Affected Products and Versions\n\nAffected Product(s)| Version(s) \n---|--- \nIBM Watson Speech Services Cartridge for IBM Cloud Pak for Data| 4.0.0 - 4.0.8 \n \n\n\n## Remediation/Fixes\n\n**Product(s)**| **Version(s) \n**| **Remediation/Fix/Instructions** \n---|---|--- \n**IBM Watson Speech Services Cartridge for IBM Cloud Pak for Data**| **4.0.9**| **The fix in 4.0.9 applies to all versions listed (4.0.0-4.0.8). Version 4.0.9 can be downloaded and installed from: \n<https://www.ibm.com/docs/en/cloud-paks/cp-data/4.0?topic=planning-operator-operand-versions> \n** \n \n## Workarounds and Mitigations\n\nNone\n\n## ", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "NONE", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "baseScore": 7.5, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2023-01-12T21:59:00", "type": "ibm", "title": "Security Bulletin: IBM Watson Speech Services Cartridge for IBM Cloud Pak for Data is vulnerable a denial of service, caused by a buffer overflow with Twisted (CVE-2022-21716)", "bulletinFamily": "software", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "NONE", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 5.0, "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 2.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-21716"], "modified": "2023-01-12T21:59:00", "id": "C4B5E7CAC069DC1C110C3501074FB57C93180DE314A46BDFD9207A94CAF56A9C", "href": "https://www.ibm.com/support/pages/node/6593867", "cvss": {"score": 5.0, "vector": "AV:N/AC:L/Au:N/C:N/I:N/A:P"}}, {"lastseen": "2023-06-24T05:50:12", "description": "## Summary\n\nIBM Watson Speech Services Cartridge for IBM Cloud Pak for Data is vulnerable to a denial of service in Twisted, caused by a buffer overflow in the peer's SSH version identifier. (CVE-2022-21716). Twisted is used as part of our speech runtime component. Please read the details for remediation below.\n\n## Vulnerability Details\n\n** CVEID: **[CVE-2022-21716](<https://vulners.com/cve/CVE-2022-21716>) \n** DESCRIPTION: **Twisted is vulnerable to a denial of service, caused by a buffer overflowin the peer's SSH version identifier. By sending a specially-crafted request, a remote attacker could exploit this vulnerability to consume available memory and crash the server. \nCVSS Base score: 7.5 \nCVSS Temporal Score: See: [ https://exchange.xforce.ibmcloud.com/vulnerabilities/221053](<https://exchange.xforce.ibmcloud.com/vulnerabilities/221053>) for the current score. \nCVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)\n\n## Affected Products and Versions\n\nAffected Product(s)| Version(s) \n---|--- \nIBM Watson Speech Services Cartridge for IBM Cloud Pak for Data| 4.0.0 - 4.5.0 \n \n \n\n\n## Remediation/Fixes\n\nIBM recommends addressing the vulnerability now by upgrading. \n\nProduct(s)| Version(s) \n| Remediation/Fix/Instructions \n---|---|--- \nIBM Watson Speech Services Cartridge for IBM Cloud Pak for Data| 4.5.1| The fix in 4.5.1 applies to all versions listed (4.0.0-4.5.0). Version 4.5.1 can be downloaded and installed from: \n[https://www.ibm.com/docs/en/cloud-pa](<https://www.ibm.com/docs/en/cloud-paks/cp-data/4.5.x?topic=installing>)[ks/cp-data/4.5.x?topic=installing](<https://www.ibm.com/docs/en/cloud-paks/cp-data/4.5.x?topic=installing>) \n \n \n## Workarounds and Mitigations\n\nNone\n\n## ", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "NONE", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "baseScore": 7.5, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2023-01-12T21:59:00", "type": "ibm", "title": "Security Bulletin: IBM Watson Speech Services Cartridge for IBM Cloud Pak for Data is vulnerable to a denial of service, caused by a buffer overflow in Twisted (CVE-2022-21716)", "bulletinFamily": "software", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "NONE", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 5.0, "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 2.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-21716"], "modified": "2023-01-12T21:59:00", "id": "6AB7786E041E27D2A9F0D51E55B4163291062C56CE924F8A2477EAD09C35569A", "href": "https://www.ibm.com/support/pages/node/6610100", "cvss": {"score": 5.0, "vector": "AV:N/AC:L/Au:N/C:N/I:N/A:P"}}], "veracode": [{"lastseen": "2023-04-18T06:18:44", "description": "twisted is vulnerable to denial of service. 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This flaw allows an unauthenticated, remote attacker to send a simple command to use all available memory and crash the server.\n", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "NONE", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "baseScore": 7.5, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2022-03-04T17:51:22", "type": "redhatcve", "title": "CVE-2022-21716", "bulletinFamily": "info", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "NONE", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 5.0, "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 2.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-21716"], "modified": "2023-04-06T09:26:43", "id": "RH:CVE-2022-21716", "href": "https://access.redhat.com/security/cve/cve-2022-21716", "cvss": {"score": 5.0, "vector": "AV:N/AC:L/Au:N/C:N/I:N/A:P"}}], "alpinelinux": [{"lastseen": "2023-08-01T19:24:42", "description": "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.", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "NONE", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "baseScore": 7.5, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2022-03-03T21:15:00", "type": "alpinelinux", "title": "CVE-2022-21716", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "NONE", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 5.0, "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 2.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-21716"], "modified": "2023-07-24T13:47:00", "id": "ALPINE:CVE-2022-21716", "href": "https://security.alpinelinux.org/vuln/CVE-2022-21716", "cvss": {"score": 5.0, "vector": "AV:N/AC:L/Au:N/C:N/I:N/A:P"}}], "debian": [{"lastseen": "2022-09-10T15:40:38", "description": "- -------------------------------------------------------------------------\nDebian LTS Advisory DLA-2938-1 debian-lts@lists.debian.org\nhttps://www.debian.org/lts/security/ Chris Lamb\nMarch 08, 2022 https://wiki.debian.org/LTS\n- -------------------------------------------------------------------------\n\nPackage : twisted\nVersion : 16.6.0-2+deb9u2\nCVE ID : CVE-2022-21716\n\nIt was discovered that there was an issue in the Twisted Python\nnetwork framework where SSH client and server implementions could\naccept an infinite amount of data for the peer's SSH version\nidentifier and that a buffer then uses all available memory.\n\nFor Debian 9 "Stretch", this problem has been fixed in version\n16.6.0-2+deb9u2.\n\nWe recommend that you upgrade your twisted packages.\n\nFor the detailed security status of twisted please refer to\nits security tracker page at:\nhttps://security-tracker.debian.org/tracker/twisted\n\nFurther information about Debian LTS security advisories, how to apply\nthese updates to your system and frequently asked questions can be\nfound at: https://wiki.debian.org/LTS", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "NONE", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "baseScore": 7.5, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2022-03-08T12:02:36", "type": "debian", "title": "[SECURITY] [DLA 2938-1] twisted security update", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "NONE", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 5.0, "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 2.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-21716"], "modified": "2022-03-08T12:02:36", "id": "DEBIAN:DLA-2938-1:F62DC", "href": "https://lists.debian.org/debian-lts-announce/2022/03/msg00009.html", "cvss": {"score": 5.0, "vector": "AV:N/AC:L/Au:N/C:N/I:N/A:P"}}], "osv": [{"lastseen": "2023-07-24T19:50:33", "description": "### Impact\n\nThe Twisted SSH client and server implementation naively accepted an infinite amount of data for the peer's SSH version identifier.\n\nA malicious peer can trivially craft a request that uses all available memory and crash the server, resulting in denial of service. The attack is as simple as `nc -rv localhost 22 < /dev/zero`.\n\n### Patches\n\nThe issue was fix in GitHub commit https://github.com/twisted/twisted/commit/98387b39e9f0b21462f6abc7a1325dc370fcdeb1\n\nA fix is available in Twisted 22.2.0.\n\n### Workarounds\n\n* Limit access to the SSH server only to trusted source IP addresses.\n* Connect over SSH only to trusted destination IP addresses.\n\n### References\n\nReported at https://twistedmatrix.com/trac/ticket/10284\nDiscussions at https://github.com/twisted/twisted/security/advisories/GHSA-rv6r-3f5q-9rgx\n\n### For more information\n\nFound by vin01", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "NONE", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "baseScore": 7.5, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2022-03-03T19:02:08", "type": "osv", "title": "Twisted SSH client and server deny of service during SSH handshake.", "bulletinFamily": "software", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "NONE", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 5.0, "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 2.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-21716"], "modified": "2023-07-24T19:50:01", "id": "OSV:GHSA-RV6R-3F5Q-9RGX", "href": "https://osv.dev/vulnerability/GHSA-rv6r-3f5q-9rgx", "cvss": {"score": 5.0, "vector": "AV:N/AC:L/Au:N/C:N/I:N/A:P"}}, {"lastseen": "2023-06-28T06:38:02", "description": "\nIt was discovered that there was an issue in the Twisted Python network\nframework where SSH client and server implementions could accept an infinite\namount of data for the peer's SSH version identifier and that a buffer then\nuses all available memory.\n\n\n* [CVE-2022-21716](https://security-tracker.debian.org/tracker/CVE-2022-21716)\nCVE-2022-21716: Twisted is an event-based framework for internet\n applications, supporting Python 3.6+. Prior to 22.2.0, Twisted SSH client\n and server implement is able to accept an infinite amount of data for the\n peer's SSH version identifier. This ends up with a buffer using all the\n available memory. The attach is a simple as `nc -rv localhost 22 <\n /dev/zero`. A patch is available in version 22.2.0. There are currently no\n known workarounds.\n\n\nFor Debian 9 Stretch, this problem has been fixed in version\n16.6.0-2+deb9u2.\n\n\nWe recommend that you upgrade your twisted packages.\n\n\nFurther information about Debian LTS security advisories, how to apply\nthese updates to your system and frequently asked questions can be\nfound at: <https://wiki.debian.org/LTS>\n\n\n", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "NONE", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "baseScore": 7.5, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2022-03-08T00:00:00", "type": "osv", "title": "twisted - security update", "bulletinFamily": "software", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "NONE", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 5.0, "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 2.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-21716"], "modified": "2023-06-28T06:37:04", "id": "OSV:DLA-2938-1", "href": "https://osv.dev/vulnerability/DLA-2938-1", "cvss": {"score": 5.0, "vector": "AV:N/AC:L/Au:N/C:N/I:N/A:P"}}, {"lastseen": "2022-05-11T20:52:24", "description": "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.", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "NONE", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "baseScore": 7.5, "privilegesRequired": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "userInteraction": "NONE", "version": "3.1"}, "impactScore": 3.6}, "published": "2022-03-03T21:15:00", "type": "osv", "title": "PYSEC-2022-160", "bulletinFamily": "software", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "NONE", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 5.0, "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 2.9, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-21716"], "modified": "2022-03-10T17:35:00", "id": "OSV:PYSEC-2022-160", "href": "https://osv.dev/vulnerability/PYSEC-2022-160", "cvss": {"score": 5.0, "vector": "AV:N/AC:L/Au:N/C:N/I:N/A:P"}}], "suse": [{"lastseen": "2022-11-08T04:08:17", "description": "An update that fixes one vulnerability is now available.\n\nDescription:\n\n This update for python-Twisted fixes the following issues:\n\n - CVE-2022-21716: Fixed that ssh server accepts an infinite amount of data\n using all the available memory (bsc#1196739).\n\n\nPatch Instructions:\n\n To install this SUSE Security Update use the SUSE recommended installation methods\n like YaST online_update or \"zypper patch\".\n\n Alternatively you can run the command listed for your product:\n\n - openSUSE Leap 15.4:\n\n zypper in -t patch openSUSE-SLE-15.4-2022-2297=1\n\n - SUSE Linux Enterprise Module for Server Applications 15-SP4:\n\n zypper in -t patch SUSE-SLE-Module-Server-Applications-15-SP4-2022-2297=1", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "NONE", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "baseScore": 7.5, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2022-07-06T00:00:00", "type": "suse", "title": "Security update for python-Twisted (important)", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "NONE", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 5.0, "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 2.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-21716"], "modified": "2022-07-06T00:00:00", "id": "SUSE-SU-2022:2297-1", "href": "https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/Q5ONJTTJDLTJ6LUVVHCPDKG4SR6KAMG7/", "cvss": {"score": 5.0, "vector": "AV:N/AC:L/Au:N/C:N/I:N/A:P"}}, {"lastseen": "2022-06-14T15:52:40", "description": "An update that fixes one vulnerability is now available.\n\nDescription:\n\n This update for python-Twisted fixes the following issues:\n\n - CVE-2022-21716: Fixed that ssh server accepts an infinite amount of data\n using all the available memory (bsc#1196739).\n\n\nPatch Instructions:\n\n To install this SUSE Security Update use the SUSE recommended installation methods\n like YaST online_update or \"zypper patch\".\n\n Alternatively you can run the command listed for your product:\n\n - openSUSE Leap 15.4:\n\n zypper in -t patch openSUSE-SLE-15.4-2022-2070=1\n\n - openSUSE Leap 15.3:\n\n zypper in -t patch openSUSE-SLE-15.3-2022-2070=1\n\n - SUSE Manager Server 4.1:\n\n zypper in -t patch SUSE-SLE-Product-SUSE-Manager-Server-4.1-2022-2070=1\n\n - SUSE Manager Retail Branch Server 4.1:\n\n zypper in -t patch SUSE-SLE-Product-SUSE-Manager-Retail-Branch-Server-4.1-2022-2070=1\n\n - SUSE Manager Proxy 4.1:\n\n zypper in -t patch SUSE-SLE-Product-SUSE-Manager-Proxy-4.1-2022-2070=1\n\n - SUSE Linux Enterprise Server for SAP 15-SP2:\n\n zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP2-2022-2070=1\n\n - SUSE Linux Enterprise Server 15-SP2-LTSS:\n\n zypper in -t patch SUSE-SLE-Product-SLES-15-SP2-LTSS-2022-2070=1\n\n - SUSE Linux Enterprise Server 15-SP2-BCL:\n\n zypper in -t patch SUSE-SLE-Product-SLES-15-SP2-BCL-2022-2070=1\n\n - SUSE Linux Enterprise Module for Server Applications 15-SP3:\n\n zypper in -t patch SUSE-SLE-Module-Server-Applications-15-SP3-2022-2070=1\n\n - SUSE Linux Enterprise Module for Packagehub Subpackages 15-SP3:\n\n zypper in -t patch SUSE-SLE-Module-Packagehub-Subpackages-15-SP3-2022-2070=1\n\n - SUSE Linux Enterprise High Performance Computing 15-SP2-LTSS:\n\n zypper in -t patch SUSE-SLE-Product-HPC-15-SP2-LTSS-2022-2070=1\n\n - SUSE Linux Enterprise High Performance Computing 15-SP2-ESPOS:\n\n zypper in -t patch SUSE-SLE-Product-HPC-15-SP2-ESPOS-2022-2070=1\n\n - SUSE Enterprise Storage 7:\n\n zypper in -t patch SUSE-Storage-7-2022-2070=1", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "NONE", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "baseScore": 7.5, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2022-06-14T00:00:00", "type": "suse", "title": "Security update for python-Twisted (important)", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "NONE", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 5.0, "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 2.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-21716"], "modified": "2022-06-14T00:00:00", "id": "SUSE-SU-2022:2070-1", "href": "https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/A6J4G47IYL643PG6ICAK54KPLLN3SLIR/", "cvss": {"score": 5.0, "vector": "AV:N/AC:L/Au:N/C:N/I:N/A:P"}}], "ubuntucve": [{"lastseen": "2023-08-09T15:39:33", "description": "Twisted is an event-based framework for internet applications, supporting\nPython 3.6+. Prior to 22.2.0, Twisted SSH client and server implement is\nable to accept an infinite amount of data for the peer's SSH version\nidentifier. This ends up with a buffer using all the available memory. The\nattach is a simple as `nc -rv localhost 22 < /dev/zero`. A patch is\navailable in version 22.2.0. There are currently no known workarounds.", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "NONE", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "baseScore": 7.5, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2022-03-03T00:00:00", "type": "ubuntucve", "title": "CVE-2022-21716", "bulletinFamily": "info", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "NONE", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 5.0, "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 2.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-21716"], "modified": "2022-03-03T00:00:00", "id": "UB:CVE-2022-21716", "href": "https://ubuntu.com/security/CVE-2022-21716", "cvss": {"score": 5.0, "vector": "AV:N/AC:L/Au:N/C:N/I:N/A:P"}}], "ubuntu": [{"lastseen": "2023-08-01T19:02:35", "description": "## Releases\n\n * Ubuntu 22.04 LTS\n * Ubuntu 16.04 ESM\n * Ubuntu 14.04 ESM\n\n## Packages\n\n * twisted \\- Event-based framework for internet applications\n\nUSN-5354-1 fixed vulnerabilities in Twisted. This update provides the \ncorresponding updates for Ubuntu 14.04 ESM, Ubuntu 16.04 ESM and \nUbuntu 22.04 LTS.\n\nOriginal advisory details:\n\nIt was discovered that Twisted incorrectly processed SSH handshake data on \nconnection establishments. A remote attacker could use this issue to cause \nTwisted to crash, resulting in a denial of service. (CVE-2022-21716)\n", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "NONE", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "baseScore": 7.5, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2022-05-05T00:00:00", "type": "ubuntu", "title": "Twisted vulnerability", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "NONE", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 5.0, "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 2.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-21716"], "modified": "2022-05-05T00:00:00", "id": "USN-5354-2", "href": "https://ubuntu.com/security/notices/USN-5354-2", "cvss": {"score": 5.0, "vector": "AV:N/AC:L/Au:N/C:N/I:N/A:P"}}, {"lastseen": "2023-08-01T19:03:46", "description": "## Releases\n\n * Ubuntu 21.10 \n * Ubuntu 20.04 LTS\n * Ubuntu 18.04 ESM\n\n## Packages\n\n * twisted \\- Event-based framework for internet applications\n\nIt was discovered that Twisted incorrectly filtered HTTP headers when clients \nare being redirected to another origin. A remote attacker could use this issue \nto obtain sensitive information. (CVE-2022-21712)\n\nIt was discovered that Twisted incorrectly processed SSH handshake data on \nconnection establishments. A remote attacker could use this issue to cause \nTwisted to crash, resulting in a denial of service. (CVE-2022-21716)\n", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "baseScore": 7.5, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2022-03-30T00:00:00", "type": "ubuntu", "title": "Twisted vulnerabilities", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "NONE", "integrityImpact": "NONE", "baseScore": 5.0, "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 2.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-21712", "CVE-2022-21716"], "modified": "2022-03-30T00:00:00", "id": "USN-5354-1", "href": "https://ubuntu.com/security/notices/USN-5354-1", "cvss": {"score": 5.0, "vector": "AV:N/AC:L/Au:N/C:P/I:N/A:N"}}], "cnvd": [{"lastseen": "2022-11-04T13:21:17", "description": "Twisted is an event-driven open source network engine written in Python. Twisted has security vulnerabilities, and no details of the vulnerabilities are currently available.", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "NONE", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "baseScore": 7.5, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2022-03-04T00:00:00", "type": "cnvd", "title": "Twisted has unspecified vulnerabilities", "bulletinFamily": "cnvd", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "NONE", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 5.0, "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 2.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-21716"], "modified": "2022-03-15T00:00:00", "id": "CNVD-2022-19501", "href": "https://www.cnvd.org.cn/flaw/show/CNVD-2022-19501", "cvss": {"score": 5.0, "vector": "AV:N/AC:L/Au:N/C:N/I:N/A:P"}}], "prion": [{"lastseen": "2023-08-15T15:43:11", "description": "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.", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "NONE", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "baseScore": 7.5, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2022-03-03T21:15:00", "type": "prion", "title": "Buffer Overflow in Twisted", "bulletinFamily": "NVD", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "NONE", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 5.0, "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 2.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-21716"], "modified": "2023-07-24T13:47:00", "id": "PRION:CVE-2022-21716", "href": "https://kb.prio-n.com/vulnerability/CVE-2022-21716", "cvss": {"score": 5.0, "vector": "AV:N/AC:L/Au:N/C:N/I:N/A:P"}}], "redhat": [{"lastseen": "2023-08-16T15:27:36", "description": "Twisted is a networking engine written in Python, supporting numerous\nprotocols. It contains a web server, numerous chat clients, chat servers,\nmail servers and more.\n\nSecurity Fix(es):\n\n* SSH client and server denial of service during SSH handshake\n(CVE-2022-21716)\n\n* Secret exposure in cross-origin redirects (CVE-2022-21712)\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.", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "baseScore": 7.5, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2022-03-24T09:39:14", "type": "redhat", "title": "(RHSA-2022:0982) Important: Red Hat OpenStack Platform 16.1 (python-twisted) security update", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "NONE", "integrityImpact": "NONE", "baseScore": 5.0, "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 2.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-21712", "CVE-2022-21716"], "modified": "2022-03-24T10:34:41", "id": "RHSA-2022:0982", "href": "https://access.redhat.com/errata/RHSA-2022:0982", "cvss": {"score": 5.0, "vector": "AV:N/AC:L/Au:N/C:P/I:N/A:N"}}, {"lastseen": "2023-08-16T15:27:36", "description": "Twisted is a networking engine written in Python, supporting numerous\nprotocols. It contains a web server, numerous chat clients, chat servers,\nmail servers and more.\n\nSecurity Fix(es):\n\n* Secret exposure in cross-origin redirects of python-twisted (CVE-2022-21712)\n* SSH client and server denial of service during SSH handshake\n(CVE-2022-21716)\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.", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "baseScore": 7.5, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2022-03-23T20:19:53", "type": "redhat", "title": "(RHSA-2022:0992) Important: Red Hat OpenStack Platform 16.2 (python-twisted) security update", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "NONE", "integrityImpact": "NONE", "baseScore": 5.0, "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 2.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-21712", "CVE-2022-21716"], "modified": "2022-03-23T21:19:51", "id": "RHSA-2022:0992", "href": "https://access.redhat.com/errata/RHSA-2022:0992", "cvss": {"score": 5.0, "vector": "AV:N/AC:L/Au:N/C:P/I:N/A:N"}}], "mageia": [{"lastseen": "2023-08-01T18:42:01", "description": "CVE-2022-21712: It was discovered that Twisted incorrectly filtered HTTP headers when clients are being redirected to another origin. A remote attacker could use this issue to obtain sensitive information. CVE-2022-21716: It was discovered that Twisted incorrectly processed SSH handshake data on connection establishments. A remote attacker could use this issue to cause Twisted to crash, resulting in a denial of service. GHSA-rv6r-3f5q-9rgx The Twisted SSH client and server implementation naively accepted an infinite amount of data for the peer's SSH version identifier. GHSA-c2jg-hw38-jrqq and CVE-2022-24801 The Twisted Web HTTP 1.1 server, located in the twisted.web.http module, parsed several HTTP request constructs more leniently than permitted by RFC 7230 GHSA-92x2-jw7w-xvvx: twisted.web.client.getPage, twisted.web.client.downladPage, and the associated implementation classes (HTTPPageGetter, HTTPPageDownloader, HTTPClientFactory, HTTPDownloader) have been removed because they do not segregate cookies by domain. They were deprecated in Twisted 16.7.0 in favor of twisted.web.client.Agent. \n", "cvss3": {"exploitabilityScore": 2.2, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "HIGH", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 8.1, "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2022-05-12T10:24:45", "type": "mageia", "title": "Updated python-twisted packages fix security vulnerability\n", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 6.8, "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-21712", "CVE-2022-21716", "CVE-2022-24801"], "modified": "2022-05-12T10:24:45", "id": "MGASA-2022-0168", "href": "https://advisories.mageia.org/MGASA-2022-0168.html", "cvss": {"score": 6.8, "vector": "AV:N/AC:M/Au:N/C:P/I:P/A:P"}}], "fedora": [{"lastseen": "2023-08-01T18:46:26", "description": "Twisted is a networking engine written in Python, supporting numerous proto cols. It contains a web server, numerous chat clients, chat servers, mail servers and more. ", "cvss3": {"exploitabilityScore": 2.2, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "HIGH", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 8.1, "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2022-07-03T01:07:05", "type": "fedora", "title": "[SECURITY] Fedora 36 Update: python-twisted-22.4.0-1.fc36", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 6.8, "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-21712", "CVE-2022-21716", "CVE-2022-24801"], "modified": "2022-07-03T01:07:05", "id": "FEDORA:67A9D305F84D", "href": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/thread/GLKHA6WREIVAMBQD7KKWYHPHGGNKMAG6/", "cvss": {"score": 6.8, "vector": "AV:N/AC:M/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2023-08-01T18:46:26", "description": "Twisted is a networking engine written in Python, supporting numerous proto cols. It contains a web server, numerous chat clients, chat servers, mail servers and more. ", "cvss3": {"exploitabilityScore": 2.2, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "HIGH", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 8.1, "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2022-07-03T01:21:11", "type": "fedora", "title": "[SECURITY] Fedora 35 Update: python-twisted-22.4.0-1.fc35", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 6.8, "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-21712", "CVE-2022-21716", "CVE-2022-24801"], "modified": "2022-07-03T01:21:11", "id": "FEDORA:6F8003055F54", "href": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/thread/7U6KYDTOLPICAVSR34G2WRYLFBD2YW5K/", "cvss": {"score": 6.8, "vector": "AV:N/AC:M/Au:N/C:P/I:P/A:P"}}], "gentoo": [{"lastseen": "2023-08-01T18:38:52", "description": "### Background\n\nTwisted is an asynchronous networking framework written in Python.\n\n### Description\n\nMultiple vulnerabilities have been discovered in Twisted. Please review the CVE identifiers referenced below for details.\n\n### Impact\n\nPlease review the referenced CVE identifiers for details.\n\n### Workaround\n\nThere is no known workaround at this time.\n\n### Resolution\n\nAll Twisted users should upgrade to the latest version:\n \n \n # emerge --sync\n # emerge --ask --oneshot --verbose \">=dev-python/twisted-22.10.0\"", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "baseScore": 7.5, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2023-01-11T00:00:00", "type": "gentoo", "title": "Twisted: Multiple Vulnerabilities", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "NONE", "integrityImpact": "NONE", "baseScore": 5.0, "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 2.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-21712", "CVE-2022-21716", "CVE-2022-39348"], "modified": "2023-01-11T00:00:00", "id": "GLSA-202301-02", "href": "https://security.gentoo.org/glsa/202301-02", "cvss": {"score": 5.0, "vector": "AV:N/AC:L/Au:N/C:P/I:N/A:N"}}], "oracle": [{"lastseen": "2023-09-22T08:09:14", "description": "A Critical Patch Update is a collection of patches for multiple security vulnerabilities. These patches address vulnerabilities in Oracle code and in third-party components included in Oracle products. These patches are usually cumulative, but each advisory describes only the security patches added since the previous Critical Patch Update Advisory. Thus, prior Critical Patch Update advisories should be reviewed for information regarding earlier published security patches. Refer to [\u201cCritical Patch Updates, Security Alerts and Bulletins\u201d](<https://www.oracle.com/security-alerts/>) for information about Oracle Security advisories. \n\n**Oracle continues to periodically receive reports of attempts to maliciously exploit vulnerabilities for which Oracle has already released security patches. In some instances, it has been reported that attackers have been successful because targeted customers had failed to apply available Oracle patches. Oracle therefore strongly recommends that customers remain on actively-supported versions and apply Critical Patch Update security patches without delay.**\n\nThis Critical Patch Update contains 520 new security patches across the product families listed below. Please note that an MOS note summarizing the content of this Critical Patch Update and other Oracle Software Security Assurance activities is located at [ April 2022 Critical Patch Update: Executive Summary and Analysis](<https://support.oracle.com/rs?type=doc&id=2857016.1>).\n", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "CHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 10.0, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 6.0}, "published": "2022-04-19T00:00:00", "type": "oracle", "title": "Oracle Critical Patch Update Advisory - April 2022", "bulletinFamily": "software", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "COMPLETE", "availabilityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "baseScore": 10.0, "vectorString": "AV:N/AC:L/Au:N/C:C/I:C/A:C", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 10.0, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2017-1000353", "CVE-2017-14159", "CVE-2017-17740", "CVE-2017-9287", "CVE-2018-1000067", "CVE-2018-1000068", "CVE-2018-1000192", "CVE-2018-1000193", "CVE-2018-1000194", "CVE-2018-1000195", "CVE-2018-11212", "CVE-2018-1285", "CVE-2018-1999001", "CVE-2018-1999002", "CVE-2018-1999003", "CVE-2018-1999004", "CVE-2018-1999005", "CVE-2018-1999007", "CVE-2018-2601", "CVE-2018-6356", "CVE-2018-8032", "CVE-2019-0227", "CVE-2019-1003049", "CVE-2019-1003050", "CVE-2019-10086", "CVE-2019-10247", "CVE-2019-10383", "CVE-2019-10384", "CVE-2019-12086", "CVE-2019-12399", "CVE-2019-12402", "CVE-2019-13038", "CVE-2019-13057", "CVE-2019-13565", "CVE-2019-13750", "CVE-2019-13751", "CVE-2019-14822", "CVE-2019-14862", "CVE-2019-16785", "CVE-2019-16786", "CVE-2019-16789", "CVE-2019-16792", "CVE-2019-17195", "CVE-2019-17571", "CVE-2019-18218", "CVE-2019-18276", "CVE-2019-19603", "CVE-2019-20388", "CVE-2019-20838", "CVE-2019-20916", "CVE-2019-3738", "CVE-2019-3739", "CVE-2019-3740", "CVE-2019-3799", "CVE-2019-5827", "CVE-2020-10531", "CVE-2020-10543", "CVE-2020-10693", "CVE-2020-10878", "CVE-2020-11022", "CVE-2020-11023", "CVE-2020-11080", "CVE-2020-11612", "CVE-2020-11971", "CVE-2020-11979", "CVE-2020-12243", "CVE-2020-12723", "CVE-2020-13434", "CVE-2020-13435", "CVE-2020-13935", "CVE-2020-13936", "CVE-2020-13956", "CVE-2020-14155", "CVE-2020-14340", "CVE-2020-14343", "CVE-2020-15250", "CVE-2020-15358", "CVE-2020-15719", "CVE-2020-16135", "CVE-2020-17521", "CVE-2020-17527", "CVE-2020-17530", "CVE-2020-1968", "CVE-2020-1971", "CVE-2020-24616", "CVE-2020-24750", "CVE-2020-24977", "CVE-2020-25638", "CVE-2020-25649", "CVE-2020-25659", "CVE-2020-27218", "CVE-2020-28052", "CVE-2020-28196", "CVE-2020-28895", "CVE-2020-29363", "CVE-2020-29582", "CVE-2020-35198", "CVE-2020-35490", "CVE-2020-35491", "CVE-2020-35728", "CVE-2020-36179", "CVE-2020-36180", "CVE-2020-36181", "CVE-2020-36182", "CVE-2020-36183", "CVE-2020-36184", "CVE-2020-36185", "CVE-2020-36186", "CVE-2020-36187", "CVE-2020-36188", "CVE-2020-36189", "CVE-2020-36242", "CVE-2020-36518", "CVE-2020-5245", "CVE-2020-5413", "CVE-2020-5421", "CVE-2020-6950", "CVE-2020-7226", "CVE-2020-7595", "CVE-2020-7760", "CVE-2020-8172", "CVE-2020-8174", "CVE-2020-8203", "CVE-2020-8231", "CVE-2020-8277", "CVE-2020-8284", "CVE-2020-8285", "CVE-2020-8286", "CVE-2020-8554", "CVE-2020-8908", "CVE-2020-9488", "CVE-2021-20231", "CVE-2021-20232", "CVE-2021-20289", "CVE-2021-21275", "CVE-2021-21290", "CVE-2021-21295", "CVE-2021-21409", "CVE-2021-21703", "CVE-2021-22096", "CVE-2021-22118", "CVE-2021-22132", "CVE-2021-22134", "CVE-2021-22144", "CVE-2021-22145", "CVE-2021-22569", "CVE-2021-22570", "CVE-2021-22696", "CVE-2021-22897", "CVE-2021-22898", "CVE-2021-22901", "CVE-2021-22946", "CVE-2021-22947", "CVE-2021-23017", "CVE-2021-23450", "CVE-2021-2351", "CVE-2021-23839", "CVE-2021-23840", "CVE-2021-23841", "CVE-2021-2427", "CVE-2021-2464", "CVE-2021-2471", "CVE-2021-25219", "CVE-2021-26291", "CVE-2021-27568", "CVE-2021-27645", "CVE-2021-27807", "CVE-2021-27906", "CVE-2021-28168", "CVE-2021-28169", "CVE-2021-28170", "CVE-2021-28657", "CVE-2021-29425", "CVE-2021-29505", "CVE-2021-29921", "CVE-2021-30129", "CVE-2021-30468", "CVE-2021-3156", "CVE-2021-31799", "CVE-2021-31810", "CVE-2021-31811", "CVE-2021-31812", "CVE-2021-3200", "CVE-2021-32066", "CVE-2021-32626", "CVE-2021-32627", "CVE-2021-32628", "CVE-2021-32672", "CVE-2021-32675", "CVE-2021-32687", "CVE-2021-32762", "CVE-2021-32785", "CVE-2021-32786", "CVE-2021-32791", "CVE-2021-32792", "CVE-2021-33037", "CVE-2021-33193", "CVE-2021-33560", "CVE-2021-33574", "CVE-2021-33813", "CVE-2021-33880", "CVE-2021-34429", "CVE-2021-3445", "CVE-2021-3449", "CVE-2021-3450", "CVE-2021-34798", "CVE-2021-35043", "CVE-2021-3517", "CVE-2021-3518", "CVE-2021-3520", "CVE-2021-3521", "CVE-2021-3537", "CVE-2021-35515", "CVE-2021-35516", "CVE-2021-35517", "CVE-2021-35574", "CVE-2021-3572", "CVE-2021-3580", "CVE-2021-35942", "CVE-2021-36084", "CVE-2021-36085", "CVE-2021-36086", "CVE-2021-36087", "CVE-2021-36090", "CVE-2021-36160", "CVE-2021-36373", "CVE-2021-36374", "CVE-2021-3690", "CVE-2021-3711", "CVE-2021-3712", "CVE-2021-37136", "CVE-2021-37137", "CVE-2021-37714", "CVE-2021-3807", "CVE-2021-38153", "CVE-2021-39139", "CVE-2021-39140", "CVE-2021-39141", "CVE-2021-39144", "CVE-2021-39145", "CVE-2021-39146", "CVE-2021-39147", "CVE-2021-39148", "CVE-2021-39149", "CVE-2021-39150", "CVE-2021-39151", "CVE-2021-39152", "CVE-2021-39153", "CVE-2021-39154", "CVE-2021-39275", "CVE-2021-4034", "CVE-2021-40438", "CVE-2021-40690", "CVE-2021-4104", "CVE-2021-41099", "CVE-2021-41164", "CVE-2021-41165", "CVE-2021-41182", "CVE-2021-41183", "CVE-2021-41184", "CVE-2021-4160", "CVE-2021-41617", "CVE-2021-4181", "CVE-2021-4182", "CVE-2021-4183", "CVE-2021-4184", "CVE-2021-4185", "CVE-2021-41973", "CVE-2021-42013", "CVE-2021-42340", "CVE-2021-42392", "CVE-2021-42717", "CVE-2021-43395", "CVE-2021-43527", "CVE-2021-43797", "CVE-2021-43818", "CVE-2021-43859", "CVE-2021-44224", "CVE-2021-44531", "CVE-2021-44532", "CVE-2021-44533", "CVE-2021-44790", "CVE-2021-44832", "CVE-2021-45105", "CVE-2022-0391", "CVE-2022-0778", "CVE-2022-20612", "CVE-2022-20613", "CVE-2022-20614", "CVE-2022-20615", "CVE-2022-21271", "CVE-2022-21375", "CVE-2022-21384", "CVE-2022-21404", "CVE-2022-21405", "CVE-2022-21409", "CVE-2022-21410", "CVE-2022-21411", "CVE-2022-21412", "CVE-2022-21413", "CVE-2022-21414", "CVE-2022-21415", "CVE-2022-21416", "CVE-2022-21417", "CVE-2022-21418", "CVE-2022-21419", "CVE-2022-21420", "CVE-2022-21421", "CVE-2022-21422", "CVE-2022-21423", "CVE-2022-21424", "CVE-2022-21425", "CVE-2022-21426", "CVE-2022-21427", "CVE-2022-21430", "CVE-2022-21431", "CVE-2022-21434", "CVE-2022-21435", "CVE-2022-21436", "CVE-2022-21437", "CVE-2022-21438", "CVE-2022-21440", "CVE-2022-21441", "CVE-2022-21442", "CVE-2022-21443", "CVE-2022-21444", "CVE-2022-21445", "CVE-2022-21446", "CVE-2022-21447", "CVE-2022-21448", "CVE-2022-21449", "CVE-2022-21450", "CVE-2022-21451", "CVE-2022-21452", "CVE-2022-21453", "CVE-2022-21454", "CVE-2022-21457", "CVE-2022-21458", "CVE-2022-21459", "CVE-2022-21460", "CVE-2022-21461", "CVE-2022-21462", "CVE-2022-21463", "CVE-2022-21464", "CVE-2022-21465", "CVE-2022-21466", "CVE-2022-21467", "CVE-2022-21468", "CVE-2022-21469", "CVE-2022-21470", "CVE-2022-21471", "CVE-2022-21472", "CVE-2022-21473", "CVE-2022-21474", "CVE-2022-21475", "CVE-2022-21476", "CVE-2022-21477", "CVE-2022-21478", "CVE-2022-21479", "CVE-2022-21480", "CVE-2022-21481", "CVE-2022-21482", "CVE-2022-21483", "CVE-2022-21484", "CVE-2022-21485", "CVE-2022-21486", "CVE-2022-21487", "CVE-2022-21488", "CVE-2022-21489", "CVE-2022-21490", "CVE-2022-21491", "CVE-2022-21492", "CVE-2022-21493", "CVE-2022-21494", "CVE-2022-21496", "CVE-2022-21497", "CVE-2022-21498", "CVE-2022-21716", "CVE-2022-21824", "CVE-2022-22719", "CVE-2022-22720", "CVE-2022-22721", "CVE-2022-22947", "CVE-2022-22963", "CVE-2022-22965", "CVE-2022-22968", "CVE-2022-23181", "CVE-2022-23221", "CVE-2022-23302", "CVE-2022-23305", "CVE-2022-23307", "CVE-2022-23437", "CVE-2022-23852", "CVE-2022-23943", "CVE-2022-23990", "CVE-2022-24329", "CVE-2022-25235", "CVE-2022-25236", "CVE-2022-25313", "CVE-2022-25314", "CVE-2022-25315"], "modified": "2022-06-16T00:00:00", "id": "ORACLE:CPUAPR2022", "href": "https://www.oracle.com/security-alerts/cpuapr2022.html", "cvss": {"score": 10.0, "vector": "AV:N/AC:L/Au:N/C:C/I:C/A:C"}}]}
CVE-2022-21716
