GHSA-h3q4-6j7f-r24c

Suggest an improvement
Source
https://github.com/advisories/GHSA-h3q4-6j7f-r24c
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/05/GHSA-h3q4-6j7f-r24c/GHSA-h3q4-6j7f-r24c.json
JSON Data
https://api.test.osv.dev/v1/vulns/GHSA-h3q4-6j7f-r24c
Aliases
Published
2022-05-17T03:02:35Z
Modified
2024-08-30T23:57:22.774061Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
  • 6.6 (Medium) CVSS_V4 - 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 CVSS Calculator
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.

Database specific
{
    "nvd_published_at": "2017-01-10T15:59:00Z",
    "cwe_ids": [
        "CWE-770"
    ],
    "severity": "MODERATE",
    "github_reviewed": true,
    "github_reviewed_at": "2024-08-30T23:37:23Z"
}
References

Affected packages

PyPI / priority

Package

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.2.0

Affected versions

0.*

0.0.1

1.*

1.0.0
1.1.0
1.1.1