Vulnerability-Lookup

OESA-2023-1240 (CVE-2023-1981)

Vulnerability from osv_openeuler – Published: 2023-04-21 11:05 – Updated: 2026-08-06 11:05 – Source website

Summary

avahi security update

Details

Avahi is a system which facilitates service discovery on a local network via the mDNS/DNS-SD protocol suite. This enables you to plug your laptop or computer into a network and instantly be able to view other people who you can chat with, find printers to print to or find files being shared.

Security Fix(es):

It was discovered that the avahi deamon can be locally crashed by a dbus call made by an unprivileged user, causing a denial of service.

References:

https://github.com/lathiat/avahi/issues/375(CVE-2023-1981)

Severity

6.2 (Medium)


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

References

URL

Type

	https://www.openeuler.org/en/security/safety-bull…	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2023-1981	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "aarch64": [
          "avahi-autoipd-0.8-9.oe1.aarch64.rpm",
          "avahi-compat-libdns_sd-0.8-9.oe1.aarch64.rpm",
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          "avahi-debuginfo-0.8-9.oe1.aarch64.rpm",
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          "avahi-qt5-0.8-9.oe1.x86_64.rpm"
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      "package": {
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        "purl": "pkg:rpm/openEuler/avahi\u0026distro=openEuler-20.03-LTS-SP3"
      },
      "ranges": [
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          "avahi-debuginfo-0.8-15.oe2203.x86_64.rpm",
          "avahi-dnsconfd-0.8-15.oe2203.x86_64.rpm",
          "avahi-autoipd-0.8-15.oe2203.x86_64.rpm",
          "avahi-compat-howl-devel-0.8-15.oe2203.x86_64.rpm",
          "avahi-gobject-0.8-15.oe2203.x86_64.rpm",
          "avahi-tools-0.8-15.oe2203.x86_64.rpm",
          "avahi-ui-gtk3-0.8-15.oe2203.x86_64.rpm",
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          "avahi-ui-gtk3-0.8-15.oe2203sp1.x86_64.rpm",
          "avahi-gobject-devel-0.8-15.oe2203sp1.x86_64.rpm",
          "avahi-tools-0.8-15.oe2203sp1.x86_64.rpm",
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      },
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          "avahi-ui-0.8-15.oe2203sp1.aarch64.rpm",
          "avahi-gobject-0.8-15.oe2203sp1.aarch64.rpm",
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          "avahi-glib-0.8-15.oe2203sp1.aarch64.rpm",
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          "avahi-compat-howl-devel-0.8-15.oe2203sp1.x86_64.rpm",
          "avahi-gobject-0.8-15.oe2203sp1.x86_64.rpm",
          "avahi-glib-devel-0.8-15.oe2203sp1.x86_64.rpm",
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          "avahi-ui-devel-0.8-15.oe2203sp1.x86_64.rpm",
          "avahi-autoipd-0.8-15.oe2203sp1.x86_64.rpm",
          "avahi-ui-0.8-15.oe2203sp1.x86_64.rpm",
          "avahi-dnsconfd-0.8-15.oe2203sp1.x86_64.rpm",
          "avahi-compat-libdns_sd-devel-0.8-15.oe2203sp1.x86_64.rpm",
          "avahi-0.8-15.oe2203sp1.x86_64.rpm",
          "avahi-devel-0.8-15.oe2203sp1.x86_64.rpm",
          "avahi-debugsource-0.8-15.oe2203sp1.x86_64.rpm",
          "avahi-glib-0.8-15.oe2203sp1.x86_64.rpm",
          "avahi-ui-gtk3-0.8-15.oe2203sp1.x86_64.rpm",
          "avahi-gobject-devel-0.8-15.oe2203sp1.x86_64.rpm",
          "avahi-tools-0.8-15.oe2203sp1.x86_64.rpm",
          "avahi-debuginfo-0.8-15.oe2203sp1.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:22.03-LTS-SP1",
        "name": "avahi",
        "purl": "pkg:rpm/openEuler/avahi\u0026distro=openEuler-22.03-LTS-SP1"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.8-15.oe2203sp1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "severity": "Medium"
  },
  "details": "Avahi is a system which facilitates service discovery on a local network via the mDNS/DNS-SD protocol suite. This enables you to plug your laptop or computer into a network and instantly be able to view other people who you can chat with, find printers to print to or find files being shared.\r\n\r\nSecurity Fix(es):\r\n\r\nIt was discovered that the avahi deamon can be locally crashed by a dbus call made by an unprivileged user, causing a denial of service.\r\n\r\nReferences:\r\n\r\nhttps://github.com/lathiat/avahi/issues/375(CVE-2023-1981)",
  "id": "OESA-2023-1240",
  "modified": "2026-08-06T11:05:43Z",
  "published": "2023-04-21T11:05:43Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2023-1240"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-1981"
    }
  ],
  "schema_version": "1.7.2",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "avahi security update",
  "upstream": [
    "CVE-2023-1981"
  ]
}

CVE-2023-1981 (GCVE-0-2023-1981)

Vulnerability from cvelistv5 – Published: 2023-05-26 00:00 – Updated: 2025-11-03 21:47

Summary

A vulnerability was found in the avahi library. This flaw allows an unprivileged user to make a dbus call, causing the avahi daemon to crash.

Severity

5.5 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-01-15 21:38 UTC

CWE

CWE-400

Assigner

redhat redhat root

References

4 references

URL	Tags
https://access.redhat.com/security/cve/CVE-2023-1981
https://bugzilla.redhat.com/show_bug.cgi?id=2185911
https://github.com/lathiat/avahi/issues/375
https://lists.debian.org/debian-lts-announce/2024…

Impacted products

1 product

Vendor	Product	Version
n/a	avahi	Affected: avahi-0.7-20

Show details on NVD website

JSON

To clipboard

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            "url": "https://access.redhat.com/security/cve/CVE-2023-1981"
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            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2185911"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://github.com/lathiat/avahi/issues/375"
          },
          {
            "url": "https://lists.debian.org/debian-lts-announce/2024/12/msg00011.html"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "LOCAL",
              "availabilityImpact": "HIGH",
              "baseScore": 5.5,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2023-1981",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-01-15T21:38:14.751357Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-01-15T21:38:19.827Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "avahi",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "avahi-0.7-20"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A vulnerability was found in the avahi library. This flaw allows an unprivileged user to make a dbus call, causing the avahi daemon to crash."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-400",
              "description": "CWE-400",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2023-05-26T00:00:00.000Z",
        "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "shortName": "redhat"
      },
      "references": [
        {
          "url": "https://access.redhat.com/security/cve/CVE-2023-1981"
        },
        {
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2185911"
        },
        {
          "url": "https://github.com/lathiat/avahi/issues/375"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
    "assignerShortName": "redhat",
    "cveId": "CVE-2023-1981",
    "datePublished": "2023-05-26T00:00:00.000Z",
    "dateReserved": "2023-04-11T00:00:00.000Z",
    "dateUpdated": "2025-11-03T21:47:06.552Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

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.

Related by attack behaviour

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.

Action not permitted

OESA-2023-1240 (CVE-2023-1981)

CVE-2023-1981 (GCVE-0-2023-1981)

Tags

Sightings

Nomenclature

Related by attack behaviour