github - ghsa-748v-rhfv-4hm6

GHSA-748V-RHFV-4HM6

Vulnerability from github – Published: 2022-05-24 19:11 – Updated: 2022-05-24 19:11

Details

An issue was discovered in HCC Nichestack 3.0. The code that parses TCP packets relies on an unchecked value of the IP payload size (extracted from the IP header) to compute the length of the TCP payload within the TCP checksum computation function. When the IP payload size is set to be smaller than the size of the IP header, the TCP checksum computation function may read out of bounds (a low-impact write-out-of-bounds is also possible).

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{
  "affected": [],
  "aliases": [
    "CVE-2020-35684"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-20"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-08-19T12:15:00Z",
    "severity": "HIGH"
  },
  "details": "An issue was discovered in HCC Nichestack 3.0. The code that parses TCP packets relies on an unchecked value of the IP payload size (extracted from the IP header) to compute the length of the TCP payload within the TCP checksum computation function. When the IP payload size is set to be smaller than the size of the IP header, the TCP checksum computation function may read out of bounds (a low-impact write-out-of-bounds is also possible).",
  "id": "GHSA-748v-rhfv-4hm6",
  "modified": "2022-05-24T19:11:42Z",
  "published": "2022-05-24T19:11:42Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-35684"
    },
    {
      "type": "WEB",
      "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-789208.pdf"
    },
    {
      "type": "WEB",
      "url": "https://www.forescout.com/blog/new-critical-operational-technology-vulnerabilities-found-on-nichestack"
    },
    {
      "type": "WEB",
      "url": "https://www.hcc-embedded.com"
    },
    {
      "type": "WEB",
      "url": "https://www.kb.cert.org/vuls/id/608209"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2020-35684 (GCVE-0-2020-35684)

Vulnerability from cvelistv5 – Published: 2021-08-19 11:19 – Updated: 2024-08-04 17:09

Summary

Severity ?

No CVSS data available.

CWE

Assigner

mitre

References

URL

Tags

	https://www.hcc-embedded.com	x_refsource_MISC
	https://cert-portal.siemens.com/productcert/pdf/s…	x_refsource_CONFIRM
	https://www.forescout.com/blog/new-critical-opera…	x_refsource_MISC
	https://www.kb.cert.org/vuls/id/608209	third-party-advisoryx_refsource_CERT-VN

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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-748V-RHFV-4HM6

CVE-2020-35684 (GCVE-0-2020-35684)

Tags

Sightings

Nomenclature