Vulnerability-Lookup

ubuntu-cve-2025-54995

Vulnerability from osv_ubuntu

Published

2025-08-28 15:16

Modified

2026-04-22 07:56

Summary

Details

Asterisk is an open source private branch exchange and telephony toolkit. Prior to versions 18.26.4 and 18.9-cert17, RTP UDP ports and internal resources can leak due to a lack of session termination. This could result in leaks and resource exhaustion. This issue has been patched in versions 18.26.4 and 18.9-cert17.

Severity

6.5 (Medium)


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

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2025-54995	REPORT
	https://www.cve.org/CVERecord?id=CVE-2025-54995	REPORT
	https://github.com/asterisk/asterisk/security/adv…	REPORT
	https://github.com/asterisk/asterisk/pull/1405	REPORT
	https://github.com/asterisk/asterisk/commit/eafcd…	REPORT
	https://github.com/asterisk/asterisk/commit/0278f…	REPORT
	https://github.com/asterisk/asterisk/pull/1406	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "asterisk",
            "binary_version": "1:13.1.0~dfsg-1.1ubuntu4.1+esm1"
          },
          {
            "binary_name": "asterisk-config",
            "binary_version": "1:13.1.0~dfsg-1.1ubuntu4.1+esm1"
          },
          {
            "binary_name": "asterisk-dahdi",
            "binary_version": "1:13.1.0~dfsg-1.1ubuntu4.1+esm1"
          },
          {
            "binary_name": "asterisk-mobile",
            "binary_version": "1:13.1.0~dfsg-1.1ubuntu4.1+esm1"
          },
          {
            "binary_name": "asterisk-modules",
            "binary_version": "1:13.1.0~dfsg-1.1ubuntu4.1+esm1"
          },
          {
            "binary_name": "asterisk-mp3",
            "binary_version": "1:13.1.0~dfsg-1.1ubuntu4.1+esm1"
          },
          {
            "binary_name": "asterisk-mysql",
            "binary_version": "1:13.1.0~dfsg-1.1ubuntu4.1+esm1"
          },
          {
            "binary_name": "asterisk-ooh323",
            "binary_version": "1:13.1.0~dfsg-1.1ubuntu4.1+esm1"
          },
          {
            "binary_name": "asterisk-voicemail",
            "binary_version": "1:13.1.0~dfsg-1.1ubuntu4.1+esm1"
          },
          {
            "binary_name": "asterisk-voicemail-imapstorage",
            "binary_version": "1:13.1.0~dfsg-1.1ubuntu4.1+esm1"
          },
          {
            "binary_name": "asterisk-voicemail-odbcstorage",
            "binary_version": "1:13.1.0~dfsg-1.1ubuntu4.1+esm1"
          },
          {
            "binary_name": "asterisk-vpb",
            "binary_version": "1:13.1.0~dfsg-1.1ubuntu4.1+esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:16.04:LTS",
        "name": "asterisk",
        "purl": "pkg:deb/ubuntu/asterisk@1:13.1.0~dfsg-1.1ubuntu4.1+esm1?arch=source\u0026distro=esm-apps/xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1:13.1.0~dfsg-1.1ubuntu3",
        "1:13.1.0~dfsg-1.1ubuntu4",
        "1:13.1.0~dfsg-1.1ubuntu4.1",
        "1:13.1.0~dfsg-1.1ubuntu4.1+esm1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "asterisk",
            "binary_version": "1:13.18.3~dfsg-1ubuntu4"
          },
          {
            "binary_name": "asterisk-config",
            "binary_version": "1:13.18.3~dfsg-1ubuntu4"
          },
          {
            "binary_name": "asterisk-dahdi",
            "binary_version": "1:13.18.3~dfsg-1ubuntu4"
          },
          {
            "binary_name": "asterisk-mobile",
            "binary_version": "1:13.18.3~dfsg-1ubuntu4"
          },
          {
            "binary_name": "asterisk-modules",
            "binary_version": "1:13.18.3~dfsg-1ubuntu4"
          },
          {
            "binary_name": "asterisk-mp3",
            "binary_version": "1:13.18.3~dfsg-1ubuntu4"
          },
          {
            "binary_name": "asterisk-mysql",
            "binary_version": "1:13.18.3~dfsg-1ubuntu4"
          },
          {
            "binary_name": "asterisk-ooh323",
            "binary_version": "1:13.18.3~dfsg-1ubuntu4"
          },
          {
            "binary_name": "asterisk-tests",
            "binary_version": "1:13.18.3~dfsg-1ubuntu4"
          },
          {
            "binary_name": "asterisk-voicemail",
            "binary_version": "1:13.18.3~dfsg-1ubuntu4"
          },
          {
            "binary_name": "asterisk-voicemail-imapstorage",
            "binary_version": "1:13.18.3~dfsg-1ubuntu4"
          },
          {
            "binary_name": "asterisk-voicemail-odbcstorage",
            "binary_version": "1:13.18.3~dfsg-1ubuntu4"
          },
          {
            "binary_name": "asterisk-vpb",
            "binary_version": "1:13.18.3~dfsg-1ubuntu4"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "asterisk",
        "purl": "pkg:deb/ubuntu/asterisk@1:13.18.3~dfsg-1ubuntu4?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1:13.17.2~dfsg-1ubuntu1",
        "1:13.17.2~dfsg-2ubuntu1",
        "1:13.18.1~dfsg-1ubuntu1",
        "1:13.18.3~dfsg-1ubuntu1",
        "1:13.18.3~dfsg-1ubuntu2",
        "1:13.18.3~dfsg-1ubuntu3",
        "1:13.18.3~dfsg-1ubuntu4"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "asterisk",
            "binary_version": "1:16.2.1~dfsg-2ubuntu1"
          },
          {
            "binary_name": "asterisk-config",
            "binary_version": "1:16.2.1~dfsg-2ubuntu1"
          },
          {
            "binary_name": "asterisk-dahdi",
            "binary_version": "1:16.2.1~dfsg-2ubuntu1"
          },
          {
            "binary_name": "asterisk-mobile",
            "binary_version": "1:16.2.1~dfsg-2ubuntu1"
          },
          {
            "binary_name": "asterisk-modules",
            "binary_version": "1:16.2.1~dfsg-2ubuntu1"
          },
          {
            "binary_name": "asterisk-mp3",
            "binary_version": "1:16.2.1~dfsg-2ubuntu1"
          },
          {
            "binary_name": "asterisk-mysql",
            "binary_version": "1:16.2.1~dfsg-2ubuntu1"
          },
          {
            "binary_name": "asterisk-ooh323",
            "binary_version": "1:16.2.1~dfsg-2ubuntu1"
          },
          {
            "binary_name": "asterisk-tests",
            "binary_version": "1:16.2.1~dfsg-2ubuntu1"
          },
          {
            "binary_name": "asterisk-voicemail",
            "binary_version": "1:16.2.1~dfsg-2ubuntu1"
          },
          {
            "binary_name": "asterisk-voicemail-imapstorage",
            "binary_version": "1:16.2.1~dfsg-2ubuntu1"
          },
          {
            "binary_name": "asterisk-voicemail-odbcstorage",
            "binary_version": "1:16.2.1~dfsg-2ubuntu1"
          },
          {
            "binary_name": "asterisk-vpb",
            "binary_version": "1:16.2.1~dfsg-2ubuntu1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "asterisk",
        "purl": "pkg:deb/ubuntu/asterisk@1:16.2.1~dfsg-2ubuntu1?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1:16.2.1~dfsg-2build2",
        "1:16.2.1~dfsg-2build3",
        "1:16.2.1~dfsg-2ubuntu1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "asterisk",
            "binary_version": "1:18.10.0~dfsg+~cs6.10.40431411-2"
          },
          {
            "binary_name": "asterisk-config",
            "binary_version": "1:18.10.0~dfsg+~cs6.10.40431411-2"
          },
          {
            "binary_name": "asterisk-dahdi",
            "binary_version": "1:18.10.0~dfsg+~cs6.10.40431411-2"
          },
          {
            "binary_name": "asterisk-mobile",
            "binary_version": "1:18.10.0~dfsg+~cs6.10.40431411-2"
          },
          {
            "binary_name": "asterisk-modules",
            "binary_version": "1:18.10.0~dfsg+~cs6.10.40431411-2"
          },
          {
            "binary_name": "asterisk-mp3",
            "binary_version": "1:18.10.0~dfsg+~cs6.10.40431411-2"
          },
          {
            "binary_name": "asterisk-mysql",
            "binary_version": "1:18.10.0~dfsg+~cs6.10.40431411-2"
          },
          {
            "binary_name": "asterisk-ooh323",
            "binary_version": "1:18.10.0~dfsg+~cs6.10.40431411-2"
          },
          {
            "binary_name": "asterisk-tests",
            "binary_version": "1:18.10.0~dfsg+~cs6.10.40431411-2"
          },
          {
            "binary_name": "asterisk-vpb",
            "binary_version": "1:18.10.0~dfsg+~cs6.10.40431411-2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "asterisk",
        "purl": "pkg:deb/ubuntu/asterisk@1:18.10.0~dfsg+~cs6.10.40431411-2?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1:16.16.1~dfsg-2",
        "1:16.16.1~dfsg-4",
        "1:16.16.1~dfsg-4build1",
        "1:16.16.1~dfsg+~2.10-1",
        "1:18.10.0~dfsg+~cs6.10.40431411-2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "asterisk",
            "binary_version": "1:20.6.0~dfsg+~cs6.13.40431414-2build5"
          },
          {
            "binary_name": "asterisk-config",
            "binary_version": "1:20.6.0~dfsg+~cs6.13.40431414-2build5"
          },
          {
            "binary_name": "asterisk-dahdi",
            "binary_version": "1:20.6.0~dfsg+~cs6.13.40431414-2build5"
          },
          {
            "binary_name": "asterisk-mobile",
            "binary_version": "1:20.6.0~dfsg+~cs6.13.40431414-2build5"
          },
          {
            "binary_name": "asterisk-modules",
            "binary_version": "1:20.6.0~dfsg+~cs6.13.40431414-2build5"
          },
          {
            "binary_name": "asterisk-mp3",
            "binary_version": "1:20.6.0~dfsg+~cs6.13.40431414-2build5"
          },
          {
            "binary_name": "asterisk-mysql",
            "binary_version": "1:20.6.0~dfsg+~cs6.13.40431414-2build5"
          },
          {
            "binary_name": "asterisk-ooh323",
            "binary_version": "1:20.6.0~dfsg+~cs6.13.40431414-2build5"
          },
          {
            "binary_name": "asterisk-tests",
            "binary_version": "1:20.6.0~dfsg+~cs6.13.40431414-2build5"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "asterisk",
        "purl": "pkg:deb/ubuntu/asterisk@1:20.6.0~dfsg+~cs6.13.40431414-2build5?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1:20.4.0~dfsg+~cs6.13.40431414-2",
        "1:20.5.0~dfsg+~cs6.13.40431414-1",
        "1:20.5.1~dfsg+~cs6.13.40431414-1",
        "1:20.5.2~dfsg+~cs6.13.40431414-1",
        "1:20.6.0~dfsg+~cs6.13.40431414-1",
        "1:20.6.0~dfsg+~cs6.13.40431414-2",
        "1:20.6.0~dfsg+~cs6.13.40431414-2build3",
        "1:20.6.0~dfsg+~cs6.13.40431414-2build4",
        "1:20.6.0~dfsg+~cs6.13.40431414-2build5"
      ]
    }
  ],
  "aliases": [],
  "details": "Asterisk is an open source private branch exchange and telephony toolkit. Prior to versions 18.26.4 and 18.9-cert17, RTP UDP ports and internal resources can leak due to a lack of session termination. This could result in leaks and resource exhaustion. This issue has been patched in versions 18.26.4 and 18.9-cert17.",
  "id": "UBUNTU-CVE-2025-54995",
  "modified": "2026-04-22T07:56:55Z",
  "published": "2025-08-28T15:16:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2025-54995"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2025-54995"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/asterisk/asterisk/security/advisories/GHSA-557q-795j-wfx2"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/asterisk/asterisk/pull/1405"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/asterisk/asterisk/commit/eafcd7a451dcd007dddf324ac37dd55a4808338d"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/asterisk/asterisk/commit/0278f5bde14565c6838a6ec39bc21aee0cde56a9"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/asterisk/asterisk/pull/1406"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2025-54995"
  ]
}

CVE-2025-54995 (GCVE-0-2025-54995)

Vulnerability from cvelistv5 – Published: 2025-08-28 15:08 – Updated: 2025-11-03 17:45

Title

Asterisk remotely exploitable leak of RTP UDP ports and internal resources

Summary

Severity

6.5 (Medium)


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

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-08-28 18:53 UTC

CWE

CWE-1286 - Improper Validation of Syntactic Correctness of Input
CWE-400 - Uncontrolled Resource Consumption

Assigner

GitHub_M mitre root

References

6 references

URL	Tags
https://github.com/asterisk/asterisk/security/adv…	x_refsource_CONFIRM
https://github.com/asterisk/asterisk/pull/1405	x_refsource_MISC
https://github.com/asterisk/asterisk/pull/1406	x_refsource_MISC
https://github.com/asterisk/asterisk/commit/0278f…	x_refsource_MISC
https://github.com/asterisk/asterisk/commit/eafcd…	x_refsource_MISC
https://lists.debian.org/debian-lts-announce/2025…

Impacted products

1 product

Vendor	Product	Version
asterisk	asterisk	Affected: < 18.26.4 Affected: < 18.9-cert17

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-54995",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-08-28T18:53:35.935192Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-08-28T18:54:20.465Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2025-11-03T17:45:15.011Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00006.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "asterisk",
          "vendor": "asterisk",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 18.26.4"
            },
            {
              "status": "affected",
              "version": "\u003c 18.9-cert17"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Asterisk is an open source private branch exchange and telephony toolkit. Prior to versions 18.26.4 and 18.9-cert17, RTP UDP ports and internal resources can leak due to a lack of session termination. This could result in leaks and resource exhaustion. This issue has been patched in versions 18.26.4 and 18.9-cert17."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-1286",
              "description": "CWE-1286: Improper Validation of Syntactic Correctness of Input",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-400",
              "description": "CWE-400: Uncontrolled Resource Consumption",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-08-28T15:08:04.468Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/asterisk/asterisk/security/advisories/GHSA-557q-795j-wfx2",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/asterisk/asterisk/security/advisories/GHSA-557q-795j-wfx2"
        },
        {
          "name": "https://github.com/asterisk/asterisk/pull/1405",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/asterisk/asterisk/pull/1405"
        },
        {
          "name": "https://github.com/asterisk/asterisk/pull/1406",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/asterisk/asterisk/pull/1406"
        },
        {
          "name": "https://github.com/asterisk/asterisk/commit/0278f5bde14565c6838a6ec39bc21aee0cde56a9",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/asterisk/asterisk/commit/0278f5bde14565c6838a6ec39bc21aee0cde56a9"
        },
        {
          "name": "https://github.com/asterisk/asterisk/commit/eafcd7a451dcd007dddf324ac37dd55a4808338d",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/asterisk/asterisk/commit/eafcd7a451dcd007dddf324ac37dd55a4808338d"
        }
      ],
      "source": {
        "advisory": "GHSA-557q-795j-wfx2",
        "discovery": "UNKNOWN"
      },
      "title": "Asterisk remotely exploitable leak of RTP UDP ports and internal resources"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2025-54995",
    "datePublished": "2025-08-28T15:08:04.468Z",
    "dateReserved": "2025-08-04T17:34:24.420Z",
    "dateUpdated": "2025-11-03T17:45:15.011Z",
    "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.