CVE-2026-57187

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"https://github.com/asterisk/asterisk/releases/tag/certified-22.8-cert3", "tags": ["x_refsource_MISC"], "url": "https://github.com/asterisk/asterisk/releases/tag/certified-22.8-cert3"}, {"name": "https://github.com/asterisk/asterisk/tree/24.0.0-pre1", "tags": ["x_refsource_MISC"], "url": "https://github.com/asterisk/asterisk/tree/24.0.0-pre1"}], "affected": [{"vendor": "asterisk", "product": "asterisk", "versions": [{"version": "< 20.20.1", "status": "affected"}, {"version": ">= 21.0.0-pre1, < 21.12.3", "status": "affected"}, {"version": ">= 22.0.0-pre1, < 22.10.1", "status": "affected"}, {"version": ">= 23.0.0-pre1, < 23.4.1", "status": "affected"}]}, {"vendor": "asterisk", "product": "certified-asterisk", "versions": [{"version": "< 20.7-cert11", "status": "affected"}, {"version": ">= 22.8-cert1-pre1, < 22.8-cert3", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-10-26T19:31:52.937Z"}, "descriptions": [{"lang": "en", "value": "Asterisk is an open source private branch exchange and telephony toolkit. Prior to Asterisk 20.20.1, 21.12.3, 22.10.1, 23.4.1 and Certified Asterisk 20.7-cert11, 22.8-cert3, an authenticated attacker may cause a heap-use-after-free in `PJSIP TCP/SDP` handling by sending a `SIP INVITE` over a connection-oriented transport and disconnecting before Asterisk responds with the `200 OK`. So far, the crash has only been reproduced when Asterisk is built with `Address Sanitizer`, which detects the issue. `Address Sanitizer` is a development tool with significant performance overhead and, according to the maintainer, is not used in production systems. This issue is fixed in Asterisk 20.20.1, 21.12.3, 22.10.1, 23.4.1 and Certified Asterisk 20.7-cert11, 22.8-cert3."}], "source": {"advisory": "GHSA-g8q2-p36q-94f6", "discovery": "UNKNOWN"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-11-02T18:06:52.594194Z", "id": "CVE-2026-57187", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-11-02T18:07:20.728Z"}}]}}

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Prior to Asterisk 20.20.1, 21.12.3, 22.10.1, 23.4.1 and Certified Asterisk 20.7-cert11, 22.8-cert3, an authenticated attacker may cause a heap-use-after-free in `PJSIP TCP/SDP` handling by sending a `SIP INVITE` over a connection-oriented transport and disconnecting before Asterisk responds with the `200 OK`. So far, the crash has only been reproduced when Asterisk is built with `Address Sanitizer`, which detects the issue. `Address Sanitizer` is a development tool with significant performance overhead and, according to the maintainer, is not used in production systems. This issue is fixed in Asterisk 20.20.1, 21.12.3, 22.10.1, 23.4.1 and Certified Asterisk 20.7-cert11, 22.8-cert3."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-416", "description": "CWE-416: Use After Free"}]}, {"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-664", "description": "CWE-664: Improper Control of a Resource Through its Lifetime"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-10-26T19:31:52.937Z"}}}, "cveMetadata": {"cveId": "CVE-2026-57187", "state": "PUBLISHED", "dateUpdated": "2026-11-02T18:07:20.728Z", "dateReserved": "2026-06-24T02:00:46.799Z", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "datePublished": "2026-10-26T19:31:52.937Z", "assignerShortName": "GitHub_M"}, "dataVersion": "5.2"}

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This issue is fixed in Asterisk 20.20.1, 21.12.3, 22.10.1, 23.4.1 and Certified Asterisk 20.7-cert11, 22.8-cert3."}], "id": "CVE-2026-57187", "lastModified": "2026-11-02T19:18:07.450", "metrics": {"cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 7.1, "baseSeverity": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "LOW", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-57187", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-11-02T18:06:52.594194Z", "version": "2.0.3"}}]}, "published": "2026-10-26T20:17:56.700", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/asterisk/asterisk/commit/0f076168e0be31ebee37762192d0ee049e9c0d42"}, {"source": "security-advisories@github.com", "url": "https://github.com/asterisk/asterisk/commit/27b9544b32f059a4f614169243eaa7559f622aa0"}, {"source": "security-advisories@github.com", "url": "https://github.com/asterisk/asterisk/commit/6e1f4df744369d66ea6f412e355d819b2a7bf26c"}, {"source": "security-advisories@github.com", "url": "https://github.com/asterisk/asterisk/commit/9e0386c6d259f0c7499d52499d9891bee8a494fa"}, {"source": "security-advisories@github.com", "url": "https://github.com/asterisk/asterisk/commit/b7ba85458796ef54b471017287c7806095dbda76"}, {"source": "security-advisories@github.com", "url": "https://github.com/asterisk/asterisk/commit/d4e30005940f86942745bcc64f34748d69870247"}, {"source": "security-advisories@github.com", "url": "https://github.com/asterisk/asterisk/commit/f1e47621472bb3d8ad71f32823f5ca986e008437"}, {"source": "security-advisories@github.com", "url": "https://github.com/asterisk/asterisk/releases/tag/20.20.1"}, {"source": "security-advisories@github.com", "url": "https://github.com/asterisk/asterisk/releases/tag/21.12.3"}, {"source": "security-advisories@github.com", "url": "https://github.com/asterisk/asterisk/releases/tag/22.10.1"}, {"source": "security-advisories@github.com", "url": "https://github.com/asterisk/asterisk/releases/tag/23.4.1"}, {"source": "security-advisories@github.com", "url": "https://github.com/asterisk/asterisk/releases/tag/certified-20.7-cert11"}, {"source": "security-advisories@github.com", "url": "https://github.com/asterisk/asterisk/releases/tag/certified-22.8-cert3"}, {"source": "security-advisories@github.com", "url": "https://github.com/asterisk/asterisk/security/advisories/GHSA-g8q2-p36q-94f6"}, {"source": "security-advisories@github.com", "url": "https://github.com/asterisk/asterisk/tree/24.0.0-pre1"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Undergoing Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-416"}, {"lang": "en", "value": "CWE-664"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{"bugzilla": {"description": "asterisk: Asterisk: Denial of Service via premature disconnect during SIP INVITE handling", "id": "2561041", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2561041"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.5", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-825", "details": ["Asterisk is an open source private branch exchange and telephony toolkit. Prior to Asterisk 20.20.1, 21.12.3, 22.10.1, 23.4.1 and Certified Asterisk 20.7-cert11, 22.8-cert3, an authenticated attacker may cause a heap-use-after-free in `PJSIP TCP/SDP` handling by sending a `SIP INVITE` over a connection-oriented transport and disconnecting before Asterisk responds with the `200 OK`. So far, the crash has only been reproduced when Asterisk is built with `Address Sanitizer`, which detects the issue. `Address Sanitizer` is a development tool with significant performance overhead and, according to the maintainer, is not used in production systems. This issue is fixed in Asterisk 20.20.1, 21.12.3, 22.10.1, 23.4.1 and Certified Asterisk 20.7-cert11, 22.8-cert3.", "A flaw was found in Asterisk. This vulnerability allows an authenticated remote attacker to cause a Denial of Service (DoS) through a heap use-after-free memory error in the PJSIP communication handling component. By sending a Session Initiation Protocol (SIP) INVITE request over a connection-oriented transport and disconnecting before the server finishes responding, an attacker can crash the service and disrupt telephony operations."], "name": "CVE-2026-57187", "public_date": "2026-10-26T19:31:52Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-57187\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-57187\nhttps://github.com/asterisk/asterisk/commit/0f076168e0be31ebee37762192d0ee049e9c0d42\nhttps://github.com/asterisk/asterisk/commit/27b9544b32f059a4f614169243eaa7559f622aa0\nhttps://github.com/asterisk/asterisk/commit/6e1f4df744369d66ea6f412e355d819b2a7bf26c\nhttps://github.com/asterisk/asterisk/commit/9e0386c6d259f0c7499d52499d9891bee8a494fa\nhttps://github.com/asterisk/asterisk/commit/b7ba85458796ef54b471017287c7806095dbda76\nhttps://github.com/asterisk/asterisk/commit/d4e30005940f86942745bcc64f34748d69870247\nhttps://github.com/asterisk/asterisk/commit/f1e47621472bb3d8ad71f32823f5ca986e008437\nhttps://github.com/asterisk/asterisk/releases/tag/20.20.1\nhttps://github.com/asterisk/asterisk/releases/tag/21.12.3\nhttps://github.com/asterisk/asterisk/releases/tag/22.10.1\nhttps://github.com/asterisk/asterisk/releases/tag/23.4.1\nhttps://github.com/asterisk/asterisk/releases/tag/certified-20.7-cert11\nhttps://github.com/asterisk/asterisk/releases/tag/certified-22.8-cert3\nhttps://github.com/asterisk/asterisk/security/advisories/GHSA-g8q2-p36q-94f6\nhttps://github.com/asterisk/asterisk/tree/24.0.0-pre1"], "statement": "This vulnerability is evaluated as Moderate impact because exploitation requires valid user authentication and only leads to a denial of service. The defect is triggered when a client abruptly terminates a connection-oriented transport before the exchange completes in PJSIP. Additionally, Asterisk is not packaged or distributed in Red Hat Enterprise Linux, limiting exposure across standard Red Hat deployments.", "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,20.20.1)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[21.0.0-pre1,21.12.3)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[22.0.0-pre1,22.10.1)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[23.0.0-pre1,23.4.1)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "asterisk", "source": "cna", "vendor": "asterisk"}, "product": "asterisk", "vendor": "asterisk"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,20.7-cert11)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[22.8-cert1-pre1,22.8-cert3)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "certified-asterisk", "source": "cna", "vendor": "asterisk"}, "product": "certified_asterisk", "vendor": "asterisk"}], "created": "2026-10-26T20:30:15.336768+00:00", "updated": "2026-11-02T13:30:17.909509+00:00", "vendors": ["asterisk", "asterisk$PRODUCT$asterisk", "asterisk$PRODUCT$certified_asterisk"]}