github - ghsa-gjcg-vrxg-xmgv

GHSA-GJCG-VRXG-XMGV

Vulnerability from github – Published: 2021-09-10 17:54 – Updated: 2021-09-10 16:32

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

Severity ?

8.6 (High)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

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{
  "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"
}

CVE-2021-39162 (GCVE-0-2021-39162)

Vulnerability from cvelistv5 – Published: 2021-09-09 22:05 – Updated: 2024-08-04 01:58

Title

Incorrect handling of H2 GOAWAY + SETTINGS frames

Summary

Pomerium is an open source identity-aware access proxy. Envoy, which Pomerium is based on, can abnormally terminate if an H/2 GOAWAY and SETTINGS frame are received in the same IO event. This can lead to a DoS in the presence of untrusted *upstream* servers. 0.15.1 contains an upgraded envoy binary with this vulnerability patched. If only trusted upstreams are configured, there is not substantial risk of this condition being triggered.

Severity ?

8.6 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

CWE

CWE-754 - Improper Check for Unusual or Exceptional Conditions

Assigner

GitHub_M

References

URL

Tags

	https://groups.google.com/g/envoy-announce/c/5xBp…	x_refsource_MISC
	https://github.com/pomerium/pomerium/security/adv…	x_refsource_CONFIRM
	https://github.com/envoyproxy/envoy/security/advi…	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	pomerium	pomerium	Affected: >= 0.15.0, < 0.15.1

Show details on NVD website

JSON

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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-GJCG-VRXG-XMGV

Impact

Patches

Workarounds

References

For more information

CVE-2021-39162 (GCVE-0-2021-39162)

Tags

Sightings

Nomenclature