github - ghsa-mv7p-ffm6-58w7

ghsa-mv7p-ffm6-58w7

Vulnerability from github

Published

2022-05-24 19:16

Modified

2022-05-24 19:16

Details

ogs_fqdn_parse in Open5GS 1.0.0 through 2.3.3 inappropriately trusts a client-supplied length value, leading to a buffer overflow. The attacker can send a PFCP Session Establishment Request with "internet" as the PDI Network Instance. The first character is interpreted as a length value to be used in a memcpy call. The destination buffer is only 100 bytes long on the stack. Then, 'i' gets interpreted as 105 bytes to copy from the source buffer to the destination buffer.

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{
  "affected": [],
  "aliases": [
    "CVE-2021-41794"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-120"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-10-07T15:15:00Z",
    "severity": "HIGH"
  },
  "details": "ogs_fqdn_parse in Open5GS 1.0.0 through 2.3.3 inappropriately trusts a client-supplied length value, leading to a buffer overflow. The attacker can send a PFCP Session Establishment Request with \"internet\" as the PDI Network Instance. The first character is interpreted as a length value to be used in a memcpy call. The destination buffer is only 100 bytes long on the stack. Then, \u0027i\u0027 gets interpreted as 105 bytes to copy from the source buffer to the destination buffer.",
  "id": "GHSA-mv7p-ffm6-58w7",
  "modified": "2022-05-24T19:16:57Z",
  "published": "2022-05-24T19:16:57Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-41794"
    },
    {
      "type": "WEB",
      "url": "https://research.nccgroup.com/2021/10/06/technical-advisory-open5gs-stack-buffer-overflow-during-pfcp-session-establishment-on-upf-cve-2021-41794"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2021-41794 (GCVE-0-2021-41794)

Vulnerability from cvelistv5

Published

2021-10-07 14:57

Modified

2024-08-04 03:22

Severity ?

CWE

n/a

Summary

ogs_fqdn_parse in Open5GS 1.0.0 through 2.3.3 inappropriately trusts a client-supplied length value, leading to a buffer overflow. The attacker can send a PFCP Session Establishment Request with "internet" as the PDI Network Instance. The first character is interpreted as a length value to be used in a memcpy call. The destination buffer is only 100 bytes long on the stack. Then, 'i' gets interpreted as 105 bytes to copy from the source buffer to the destination buffer.

References

►

URL

Tags

https://research.nccgroup.com/2021/10/06/technical-advisory-open5gs-stack-buffer-overflow-during-pfcp-session-establishment-on-upf-cve-2021-41794

x_refsource_MISC

Impacted products

	Vendor	Product	Version
	n/a	n/a	Version: n/a

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