ghsa-gjcg-vrxg-xmgv
Vulnerability from github
Published
2021-09-10 17:54
Modified
2021-09-10 16:32
Severity ?
Summary
Incorrect handling of H2 GOAWAY + SETTINGS frames
Details
Envoy, which Pomerium is based on, can abnormally terminate if an H/2 GOAWAY and SETTINGS frame are received in the same IO event.
Impact
This can lead to a DoS in the presence of untrusted upstream servers.
Patches
0.15.1 contains an upgraded envoy binary with this vulnerability patched.
Workarounds
If only trusted upstreams are configured, there is not substantial risk of this condition being triggered.
References
envoy GSA envoy CVE envoy announcement
For more information
If you have any questions or comments about this advisory: * Open an issue in pomerium/pomerium * Email us at security@pomerium.com
{ "affected": [ { "package": { "ecosystem": "Go", "name": "github.com/pomerium/pomerium" }, "ranges": [ { "events": [ { "introduced": "0" }, { "fixed": "0.15.1" } ], "type": "ECOSYSTEM" } ] } ], "aliases": [ "CVE-2021-39162" ], "database_specific": { "cwe_ids": [ "CWE-754" ], "github_reviewed": true, "github_reviewed_at": "2021-09-10T16:32:16Z", "nvd_published_at": "2021-09-09T22:15:00Z", "severity": "HIGH" }, "details": "Envoy, which Pomerium is based on, can abnormally terminate if an H/2 GOAWAY and SETTINGS frame are received in the same IO event. \n\n### Impact\nThis can lead to a DoS in the presence of untrusted *upstream* servers.\n\n### Patches\n0.15.1 contains an upgraded envoy binary with this vulnerability patched.\n\n### Workarounds\nIf only trusted upstreams are configured, there is not substantial risk of this condition being triggered.\n\n### References\n[envoy GSA](https://github.com/envoyproxy/envoy/security/advisories/GHSA-j374-mjrw-vvp8)\n[envoy CVE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-32780)\n[envoy announcement](https://groups.google.com/g/envoy-announce/c/5xBpsEZZDfE/m/wD05NZBbAgAJ)\n\n### For more information\nIf you have any questions or comments about this advisory:\n* Open an issue in [pomerium/pomerium](https://github.com/pomerium/pomerium/issues)\n* Email us at [security@pomerium.com](mailto:security@pomerium.com)\n\n", "id": "GHSA-gjcg-vrxg-xmgv", "modified": "2021-09-10T16:32:16Z", "published": "2021-09-10T17:54:01Z", "references": [ { "type": "WEB", "url": "https://github.com/envoyproxy/envoy/security/advisories/GHSA-j374-mjrw-vvp8" }, { "type": "WEB", "url": "https://github.com/pomerium/pomerium/security/advisories/GHSA-gjcg-vrxg-xmgv" }, { "type": "ADVISORY", "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-39162" }, { "type": "PACKAGE", "url": "https://github.com/pomerium/pomerium" }, { "type": "WEB", "url": "https://groups.google.com/g/envoy-announce/c/5xBpsEZZDfE/m/wD05NZBbAgAJ" } ], "schema_version": "1.4.0", "severity": [ { "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H", "type": "CVSS_V3" } ], "summary": "Incorrect handling of H2 GOAWAY + SETTINGS frames" }
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- Confirmed: The vulnerability is confirmed from an analyst perspective.
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- 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.