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Security Advisories: GSA_kwCzR0hTQS12eDc0LWY1MjgtZnhxZ84AA2Va

github.com/nghttp2/nghttp2 has HTTP/2 Rapid Reset

Impact

Rapidly creating and cancelling streams (HEADERS frame immediately followed by RST_STREAM) without bound cause denial of service.

See https://www.cve.org/CVERecord?id=CVE-2023-44487 for details.

Patches

nghttp2 v1.57.0 mitigates this vulnerability by default.

Workarounds

If upgrading to nghttp2 v1.57.0 is not possible, implement nghttp2_on_frame_recv_callback, and check and count RST_STREAM frames. If excessive number of RST_STREAM are received, then take action, such as dropping connection silently, or call nghttp2_submit_goaway and gracefully terminate the connection.

References

The following commit mitigates this vulnerability:

Permalink: https://github.com/advisories/GHSA-vx74-f528-fxqg
JSON: https://advisories.ecosyste.ms/api/v1/advisories/GSA_kwCzR0hTQS12eDc0LWY1MjgtZnhxZ84AA2Va
Source: GitHub Advisory Database
Origin: Unspecified
Severity: High
Classification: General
Published: about 1 year ago
Updated: about 1 year ago


CVSS Score: 7.5
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Identifiers: GHSA-vx74-f528-fxqg
References: Repository: https://github.com/nghttp2/nghttp2
Blast Radius: 1.0

Affected Packages

go:github.com/nghttp2/nghttp2
Dependent packages: 0
Dependent repositories: 0
Downloads:
Affected Version Ranges: < 1.57.0
Fixed in: 1.57.0
All affected versions: 0.1.0, 0.2.0, 0.3.0, 0.3.1, 0.3.2, 0.4.0, 0.4.1, 0.5.0, 0.5.1, 0.6.0, 0.6.1, 0.6.2, 0.6.3, 0.6.4, 0.6.5, 0.6.6, 0.6.7, 0.7.0, 0.7.1, 0.7.2, 0.7.3, 0.7.4, 0.7.5, 0.7.6, 0.7.7, 0.7.8, 0.7.9, 0.7.10, 0.7.11, 0.7.12, 0.7.13, 0.7.14, 0.7.15, 1.0.0, 1.0.1, 1.0.2, 1.0.3, 1.0.4, 1.0.5, 1.1.0, 1.1.1, 1.1.2, 1.2.0, 1.2.1, 1.3.0, 1.3.1, 1.3.2, 1.3.3, 1.3.4, 1.4.0, 1.5.0, 1.6.0, 1.7.0, 1.7.1, 1.8.0, 1.9.0, 1.9.1, 1.9.2, 1.10.0, 1.11.0, 1.11.1, 1.12.0, 1.13.0, 1.14.0, 1.14.1, 1.15.0, 1.16.0, 1.16.1, 1.17.0, 1.18.0, 1.18.1, 1.19.0, 1.20.0, 1.21.0, 1.21.1, 1.22.0, 1.23.0, 1.23.1, 1.24.0, 1.25.0, 1.26.0, 1.27.0, 1.28.0, 1.29.0, 1.30.0, 1.31.0, 1.31.1, 1.32.0, 1.32.1, 1.33.0, 1.34.0, 1.35.0, 1.35.1, 1.36.0, 1.37.0, 1.38.0, 1.39.0, 1.39.1, 1.39.2, 1.40.0, 1.41.0, 1.42.0, 1.43.0, 1.44.0, 1.45.0, 1.45.1, 1.46.0, 1.47.0, 1.48.0, 1.49.0, 1.50.0, 1.51.0, 1.52.0, 1.53.0, 1.54.0, 1.55.0, 1.55.1, 1.56.0
All unaffected versions: 1.57.0, 1.58.0, 1.59.0, 1.60.0, 1.61.0, 1.62.0, 1.62.1, 1.63.0, 1.64.0