Vulnerability-Lookup

ubuntu-cve-2021-28904

Vulnerability from osv_ubuntu

Published

2021-05-20 19:15

Modified

2026-04-22 07:39

Summary

Details

In function ext_get_plugin() in libyang <= v1.0.225, it doesn't check whether the value of revision is NULL. If revision is NULL, the operation of strcmp(revision, ext_plugins[u].revision) will lead to a crash.

Severity

7.5 (High)


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

N/A (UNKNOWN)

low

References

URL

Type

	https://ubuntu.com/security/CVE-2021-28904	REPORT
	https://github.com/CESNET/libyang/issues/1451	REPORT
	https://www.cve.org/CVERecord?id=CVE-2021-28904	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libyang-cpp0.16",
            "binary_version": "0.16.105-3build1"
          },
          {
            "binary_name": "libyang0.16",
            "binary_version": "0.16.105-3build1"
          },
          {
            "binary_name": "python3-yang",
            "binary_version": "0.16.105-3build1"
          },
          {
            "binary_name": "yang-tools",
            "binary_version": "0.16.105-3build1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "libyang",
        "purl": "pkg:deb/ubuntu/libyang@0.16.105-3build1?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.16.105-1",
        "0.16.105-2",
        "0.16.105-3",
        "0.16.105-3build1"
      ]
    }
  ],
  "aliases": [],
  "details": "In function ext_get_plugin() in libyang \u003c= v1.0.225, it doesn\u0027t check whether the value of revision is NULL. If revision is NULL, the operation of strcmp(revision, ext_plugins[u].revision) will lead to a crash.",
  "id": "UBUNTU-CVE-2021-28904",
  "modified": "2026-04-22T07:39:58Z",
  "published": "2021-05-20T19:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-28904"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/CESNET/libyang/issues/1451"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2021-28904"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "low",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2021-28904"
  ]
}

CVE-2021-28904 (GCVE-0-2021-28904)

Vulnerability from cvelistv5 – Published: 2021-05-20 18:36 – Updated: 2024-08-03 21:55

Summary

Severity

No CVSS data available.

CWE

Assigner

mitre

References

2 references

URL	Tags
https://github.com/CESNET/libyang/issues/1451	x_refsource_CONFIRM
https://security.gentoo.org/glsa/202107-54	vendor-advisoryx_refsource_GENTOO

Date Public

2021-03-08 00:00

Show details on NVD website

JSON

To clipboard

{
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        "providerMetadata": {
          "dateUpdated": "2024-08-03T21:55:12.144Z",
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              "x_transferred"
            ],
            "url": "https://github.com/CESNET/libyang/issues/1451"
          },
          {
            "name": "GLSA-202107-54",
            "tags": [
              "vendor-advisory",
              "x_refsource_GENTOO",
              "x_transferred"
            ],
            "url": "https://security.gentoo.org/glsa/202107-54"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
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          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "datePublic": "2021-03-08T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
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        }
      ],
      "problemTypes": [
        {
          "descriptions": [
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              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-07-24T04:06:43.000Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/CESNET/libyang/issues/1451"
        },
        {
          "name": "GLSA-202107-54",
          "tags": [
            "vendor-advisory",
            "x_refsource_GENTOO"
          ],
          "url": "https://security.gentoo.org/glsa/202107-54"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2021-28904",
          "STATE": "PUBLIC"
        },
        "affects": {
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            "vendor_data": [
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                "product": {
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                      "product_name": "n/a",
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                            "version_value": "n/a"
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                      }
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  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
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    "datePublished": "2021-05-20T18:36:27.000Z",
    "dateReserved": "2021-03-19T00:00:00.000Z",
    "dateUpdated": "2024-08-03T21:55:12.144Z",
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  },
  "dataType": "CVE_RECORD",
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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.

Detection rules are retrieved from Rulezet.

Action not permitted

ubuntu-cve-2021-28904

Vulnerability from osv_ubuntu

CVE-2021-28904 (GCVE-0-2021-28904)

Tags

Sightings

Nomenclature