ghsa-h3q4-6j7f-r24c
Vulnerability from github
Published
2022-05-17 03:02
Modified
2024-08-30 23:37
Severity ?
7.5 (High) - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
6.6 (Medium) - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U
6.6 (Medium) - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U
VLAI Severity ?
Summary
priority vulnerable to denial of service
Details
A HTTP/2 implementation built using any version of the Python priority library prior to version 1.2.0 could be targeted by a malicious peer by having that peer assign priority information for every possible HTTP/2 stream ID. The priority tree would happily continue to store the priority information for each stream, and would therefore allocate unbounded amounts of memory. Attempting to actually use a tree like this would also cause extremely high CPU usage to maintain the tree.
{ "affected": [ { "package": { "ecosystem": "PyPI", "name": "priority" }, "ranges": [ { "events": [ { "introduced": "0" }, { "fixed": "1.2.0" } ], "type": "ECOSYSTEM" } ] } ], "aliases": [ "CVE-2016-6580" ], "database_specific": { "cwe_ids": [ "CWE-770" ], "github_reviewed": true, "github_reviewed_at": "2024-08-30T23:37:23Z", "nvd_published_at": "2017-01-10T15:59:00Z", "severity": "MODERATE" }, "details": "A HTTP/2 implementation built using any version of the Python priority library prior to version 1.2.0 could be targeted by a malicious peer by having that peer assign priority information for every possible HTTP/2 stream ID. The priority tree would happily continue to store the priority information for each stream, and would therefore allocate unbounded amounts of memory. Attempting to actually use a tree like this would also cause extremely high CPU usage to maintain the tree.", "id": "GHSA-h3q4-6j7f-r24c", "modified": "2024-08-30T23:37:23Z", "published": "2022-05-17T03:02:35Z", "references": [ { "type": "ADVISORY", "url": "https://nvd.nist.gov/vuln/detail/CVE-2016-6580" }, { "type": "WEB", "url": "https://github.com/python-hyper/priority/commit/7d01a7dc4db83bce50f20d47caf4f37b403a3ecd" }, { "type": "WEB", "url": "https://github.com/pypa/advisory-database/tree/main/vulns/priority/PYSEC-2017-93.yaml" }, { "type": "PACKAGE", "url": "https://github.com/python-hyper/priority" }, { "type": "WEB", "url": "https://python-hyper.org/priority/en/latest/security/CVE-2016-6580.html" }, { "type": "WEB", "url": "https://web.archive.org/web/20160806004329/http://www.securityfocus.com/bid/92311" } ], "schema_version": "1.4.0", "severity": [ { "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "type": "CVSS_V3" }, { "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U", "type": "CVSS_V4" } ], "summary": "priority vulnerable to denial of service" }
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Sightings
Author | Source | Type | Date |
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Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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