pysec-2024-211
Vulnerability from pysec
Published
2024-10-29 15:15
Modified
2025-01-19 19:19
Severity ?
Details
Waitress is a Web Server Gateway Interface server for Python 2 and 3. When a remote client closes the connection before waitress has had the opportunity to call getpeername() waitress won't correctly clean up the connection leading to the main thread attempting to write to a socket that no longer exists, but not removing it from the list of sockets to attempt to process. This leads to a busy-loop calling the write function. A remote attacker could run waitress out of available sockets with very little resources required. Waitress 3.0.1 contains fixes that remove the race condition.
Aliases
{ affected: [ { package: { ecosystem: "PyPI", name: "waitress", purl: "pkg:pypi/waitress", }, ranges: [ { events: [ { introduced: "0", }, { fixed: "1ae4e894c9f76543bee06584001583fc6fa8c95c", }, ], repo: "https://github.com/pylons/waitress", type: "GIT", }, { events: [ { introduced: "0", }, { fixed: "3.0.1", }, ], type: "ECOSYSTEM", }, ], versions: [ "0.1", "0.2", "0.3", "0.4", "0.5", "0.6", "0.6.1", "0.7", "0.8", "0.8.1", "0.8.10", "0.8.11b0", "0.8.2", "0.8.3", "0.8.4", "0.8.5", "0.8.6", "0.8.7", "0.8.8", "0.8.9", "0.9.0", "0.9.0b0", "0.9.0b1", "1.0.0", "1.0.1", "1.0.2", "1.0a1", "1.0a2", "1.1.0", "1.2.0", "1.2.0b1", "1.2.0b2", "1.2.0b3", "1.2.1", "1.3.0", "1.3.0b0", "1.3.1", "1.4.0", "1.4.1", "1.4.2", "1.4.3", "1.4.4", "2.0.0", "2.0.0b0", "2.0.0b1", "2.1.0", "2.1.0b0", "2.1.1", "2.1.2", "3.0.0", ], }, ], aliases: [ "CVE-2024-49769", "GHSA-3f84-rpwh-47g6", ], details: "Waitress is a Web Server Gateway Interface server for Python 2 and 3. When a remote client closes the connection before waitress has had the opportunity to call getpeername() waitress won't correctly clean up the connection leading to the main thread attempting to write to a socket that no longer exists, but not removing it from the list of sockets to attempt to process. This leads to a busy-loop calling the write function. A remote attacker could run waitress out of available sockets with very little resources required. Waitress 3.0.1 contains fixes that remove the race condition.", id: "PYSEC-2024-211", modified: "2025-01-19T19:19:01.852094+00:00", published: "2024-10-29T15:15:12+00:00", references: [ { type: "ADVISORY", url: "https://github.com/Pylons/waitress/security/advisories/GHSA-3f84-rpwh-47g6", }, { type: "FIX", url: "https://github.com/Pylons/waitress/commit/1ae4e894c9f76543bee06584001583fc6fa8c95c", }, { type: "FIX", url: "https://github.com/Pylons/waitress/pull/435", }, { type: "REPORT", url: "https://github.com/Pylons/waitress/issues/418", }, { type: "WEB", url: "https://lists.debian.org/debian-lts-announce/2024/11/msg00012.html", }, ], severity: [ { score: "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", type: "CVSS_V3", }, ], }
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Sightings
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