Vulnerability-Lookup

GHSA-HXWF-FXC3-J23C

Vulnerability from github – Published: 2022-05-13 01:38 – Updated: 2022-05-13 01:38

Details

Improper bounds checking of the obuf variable in the link_ntoa() function in linkaddr.c of the BSD libc library may allow an attacker to read or write from memory. The full impact and severity depends on the method of exploit and how the library is used by applications. According to analysis by FreeBSD developers, it is very unlikely that applications exist that utilize link_ntoa() in an exploitable manner, and the CERT/CC is not aware of any proof of concept. A blog post describes the functionality of link_ntoa() and points out that none of the base utilities use this function in an exploitable manner. For more information, please see FreeBSD Security Advisory SA-16:37.

Severity

9.8 (Critical)


                  
                    CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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{
  "affected": [],
  "aliases": [
    "CVE-2016-6559"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-119"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2018-07-13T20:29:00Z",
    "severity": "CRITICAL"
  },
  "details": "Improper bounds checking of the obuf variable in the link_ntoa() function in linkaddr.c of the BSD libc library may allow an attacker to read or write from memory. The full impact and severity depends on the method of exploit and how the library is used by applications. According to analysis by FreeBSD developers, it is very unlikely that applications exist that utilize link_ntoa() in an exploitable manner, and the CERT/CC is not aware of any proof of concept. A blog post describes the functionality of link_ntoa() and points out that none of the base utilities use this function in an exploitable manner. For more information, please see FreeBSD Security Advisory SA-16:37.",
  "id": "GHSA-hxwf-fxc3-j23c",
  "modified": "2022-05-13T01:38:44Z",
  "published": "2022-05-13T01:38:44Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2016-6559"
    },
    {
      "type": "WEB",
      "url": "https://www.freebsd.org/security/advisories/FreeBSD-SA-16:37.libc.asc"
    },
    {
      "type": "WEB",
      "url": "https://www.kb.cert.org/vuls/id/548487"
    },
    {
      "type": "WEB",
      "url": "https://www.securityfocus.com/bid/94694"
    },
    {
      "type": "WEB",
      "url": "http://www.securitytracker.com/id/1037398"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2016-6559 (GCVE-0-2016-6559)

Vulnerability from cvelistv5 – Published: 2018-07-13 20:00 – Updated: 2024-08-06 01:36

Title

The BSD libc library's link_ntoa() function may be vulnerable to a classic buffer overflow

Summary

Severity

No CVSS data available.

CWE

CWE-120

Assigner

certcc mitre root Scorecard

References

4 references

URL	Tags
http://www.securitytracker.com/id/1037398	vdb-entryx_refsource_SECTRACK
https://www.freebsd.org/security/advisories/FreeB…	vendor-advisoryx_refsource_FREEBSD
https://www.kb.cert.org/vuls/id/548487	third-party-advisoryx_refsource_CERT-VN
https://www.securityfocus.com/bid/94694	vdb-entryx_refsource_BID

Impacted products

1 product

Vendor	Product	Version
BSD	libc library	Affected: link_ntoa()

Date Public

2016-12-06 00:00

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    "dateReserved": "2016-08-03T00:00:00.000Z",
    "dateUpdated": "2024-08-06T01:36:29.410Z",
    "state": "PUBLISHED"
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  "dataVersion": "5.1"
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Sightings

Author	Source	Type	Date	Other

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

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GHSA-HXWF-FXC3-J23C

CVE-2016-6559 (GCVE-0-2016-6559)

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