{"url":"http://public2.vulnerablecode.io/api/packages/16855?format=json","purl":"pkg:pypi/eventlet@0.18.4","type":"pypi","namespace":"","name":"eventlet","version":"0.18.4","qualifiers":{},"subpath":"","is_vulnerable":true,"next_non_vulnerable_version":"0.40.3","latest_non_vulnerable_version":"0.40.3","affected_by_vulnerabilities":[{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/12827?format=json","vulnerability_id":"VCID-7493-kzzq-27dw","summary":"Potential DoS via the Tudoor mechanism in eventlet and dnspython\neventlet before 0.35.2, as used in dnspython before 2.6.0, allows remote attackers to interfere with DNS name resolution by quickly sending an invalid packet from the expected IP address and source port, aka a \"TuDoor\" attack. In other words, dnspython does not have the preferred behavior in which the DNS name resolution algorithm would proceed, within the full time window, in order to wait for a valid packet. NOTE: dnspython 2.6.0 is unusable for a different reason that was addressed in 2.6.1.","references":[{"reference_url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2023-29483.json","reference_id":"","reference_type":"","scores":[{"value":"5.9","scoring_system":"cvssv3","scoring_elements":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H"}],"url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2023-29483.json"},{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2023-29483","reference_id":"","reference_type":"","scores":[{"value":"0.04954","scoring_system":"epss","scoring_elements":"0.89681","published_at":"2026-04-29T12:55:00Z"},{"value":"0.04954","scoring_system":"epss","scoring_elements":"0.89619","published_at":"2026-04-02T12:55:00Z"},{"value":"0.04954","scoring_system":"epss","scoring_elements":"0.89655","published_at":"2026-04-13T12:55:00Z"},{"value":"0.04954","scoring_system":"epss","scoring_elements":"0.89663","published_at":"2026-04-11T12:55:00Z"},{"value":"0.04954","scoring_system":"epss","scoring_elements":"0.89661","published_at":"2026-04-12T12:55:00Z"},{"value":"0.04954","scoring_system":"epss","scoring_elements":"0.89682","published_at":"2026-04-26T12:55:00Z"},{"value":"0.04954","scoring_system":"epss","scoring_elements":"0.8968","published_at":"2026-04-24T12:55:00Z"},{"value":"0.04954","scoring_system":"epss","scoring_elements":"0.89665","published_at":"2026-04-21T12:55:00Z"},{"value":"0.04954","scoring_system":"epss","scoring_elements":"0.89671","published_at":"2026-04-18T12:55:00Z"},{"value":"0.04954","scoring_system":"epss","scoring_elements":"0.8967","published_at":"2026-04-16T12:55:00Z"},{"value":"0.04954","scoring_system":"epss","scoring_elements":"0.89633","published_at":"2026-04-07T12:55:00Z"},{"value":"0.04954","scoring_system":"epss","scoring_elements":"0.8965","published_at":"2026-04-08T12:55:00Z"},{"value":"0.04954","scoring_system":"epss","scoring_elements":"0.89656","published_at":"2026-04-09T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2023-29483"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-29483","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-29483"},{"reference_url":"https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml","reference_id":"","reference_type":"","scores":[{"value":"5.9","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H"}],"url":"https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml"},{"reference_url":"https://github.com/eventlet/eventlet","reference_id":"","reference_type":"","scores":[{"value":"5.9","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/eventlet/eventlet"},{"reference_url":"https://github.com/eventlet/eventlet/commit/51e3c4928d4938beb576eff34f3bf97e6e64e6b4","reference_id":"","reference_type":"","scores":[{"value":"5.9","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/eventlet/eventlet/commit/51e3c4928d4938beb576eff34f3bf97e6e64e6b4"},{"reference_url":"https://github.com/eventlet/eventlet/issues/913","reference_id":"","reference_type":"","scores":[{"value":"5.9","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"value":"7","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:P/A:N/T:P/P:M/B:A/M:M/D:T/2024-04-11T17:34:51Z/"}],"url":"https://github.com/eventlet/eventlet/issues/913"},{"reference_url":"https://github.com/eventlet/eventlet/releases/tag/v0.35.2","reference_id":"","reference_type":"","scores":[{"value":"5.9","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"value":"7","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:P/A:N/T:P/P:M/B:A/M:M/D:T/2024-04-11T17:34:51Z/"}],"url":"https://github.com/eventlet/eventlet/releases/tag/v0.35.2"},{"reference_url":"https://github.com/rthalley/dnspython/commit/0ea5ad0a4583e1f519b9bcc67cfac381230d9cf2","reference_id":"","reference_type":"","scores":[{"value":"5.9","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/rthalley/dnspython/commit/0ea5ad0a4583e1f519b9bcc67cfac381230d9cf2"},{"reference_url":"https://github.com/rthalley/dnspython/issues/1045","reference_id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affected by HTTP request smuggling in unparsed trailers\n### Impact\nThe Eventlet WSGI parser is vulnerable to HTTP Request Smuggling due to improper handling of HTTP trailer sections.\n\nThis vulnerability could enable attackers to:\n- Bypass front-end security controls\n- Launch targeted attacks against active site users\n- Poison web caches\n\n### Patches\nProblem has been patched in eventlet 0.40.3.\n\nThe patch just drops trailers. If a backend behind eventlet.wsgi proxy requires trailers, then this patch BREAKS your setup.\n\n### Workarounds\nDo not use eventlet.wsgi facing untrusted clients.\n\n### References\n- Patch https://github.com/eventlet/eventlet/pull/1062\n- This issue is similar to 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A websocket peer may exhaust memory on Eventlet side by sending very large websocket frames. Malicious peer may exhaust memory on Eventlet side by sending highly compressed data frame. A patch in version 0.31.0 restricts websocket frame to reasonable limits. As a workaround, restricting memory usage via OS limits would help against overall machine exhaustion, but there is no workaround to protect Eventlet 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