CVE-2021-27803

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It could result in denial of service or other impact (potentially execution of arbitrary code), for an attacker within radio range."}, {"lang": "es", "value": "Se detect\u00f3 una vulnerabilidad en la manera en que el archivo p2p/p2p_pd.c en wpa_supplicant versiones anteriores a 2.10, procesa unas peticiones de detecci\u00f3n de aprovisionamiento P2P (Wi-Fi Direct). Podr\u00eda resultar en una denegaci\u00f3n de servicio u otro impacto (potencialmente una ejecuci\u00f3n de c\u00f3digo arbitraria), para un atacante dentro del alcance del radio"}], "id": "CVE-2021-27803", "lastModified": "2026-06-17T03:45:28.727", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "ADJACENT_NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 5.4, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:A/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0"}, 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"vectorString": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.6, "impactScore": 5.9, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2021-27803", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2025-12-18T14:57:24.188771Z", "version": "2.0.3"}}]}, "published": "2021-02-26T23:15:11.340", "references": [{"source": "cve@mitre.org", "tags": ["Mailing List", "Mitigation", "Third Party Advisory"], "url": "http://www.openwall.com/lists/oss-security/2021/02/27/1"}, {"source": "cve@mitre.org", "tags": ["Mailing List", "Third Party Advisory"], "url": "https://lists.debian.org/debian-lts-announce/2021/03/msg00003.html"}, {"source": "cve@mitre.org", "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IZGUR5XFHATVXTRAEJMODS7ROYHA56NX/"}, {"source": "cve@mitre.org", "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KOGP2VIVVXXQ6CZ2HU4DKGPDB4WR24XF/"}, {"source": "cve@mitre.org", "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SEHS2CFGH3KCSNPHBHNGN5SGV6QPMLZ4/"}, {"source": "cve@mitre.org", "tags": ["Patch", "Vendor Advisory"], "url": "https://w1.fi/security/2021-1/0001-P2P-Fix-a-corner-case-in-peer-addition-based-on-PD-R.patch"}, {"source": "cve@mitre.org", "tags": ["Mitigation", "Vendor Advisory"], "url": "https://w1.fi/security/2021-1/wpa_supplicant-p2p-provision-discovery-processing-vulnerability.txt"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "https://www.debian.org/security/2021/dsa-4898"}, {"source": "cve@mitre.org", "tags": ["Mailing List", "Mitigation", "Third Party Advisory"], "url": "https://www.openwall.com/lists/oss-security/2021/02/25/3"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Mitigation", "Third Party Advisory"], "url": "http://www.openwall.com/lists/oss-security/2021/02/27/1"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Third Party Advisory"], "url": "https://lists.debian.org/debian-lts-announce/2021/03/msg00003.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IZGUR5XFHATVXTRAEJMODS7ROYHA56NX/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KOGP2VIVVXXQ6CZ2HU4DKGPDB4WR24XF/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SEHS2CFGH3KCSNPHBHNGN5SGV6QPMLZ4/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Vendor Advisory"], "url": "https://w1.fi/security/2021-1/0001-P2P-Fix-a-corner-case-in-peer-addition-based-on-PD-R.patch"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mitigation", "Vendor Advisory"], "url": "https://w1.fi/security/2021-1/wpa_supplicant-p2p-provision-discovery-processing-vulnerability.txt"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://www.debian.org/security/2021/dsa-4898"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Mitigation", "Third Party Advisory"], "url": "https://www.openwall.com/lists/oss-security/2021/02/25/3"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"affected_release": [{"advisory": "RHSA-2021:0808", "cpe": "cpe:/o:redhat:enterprise_linux:7", "package": "wpa_supplicant-1:2.6-12.el7_9.2", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2021-03-10T00:00:00Z"}, {"advisory": "RHSA-2021:0809", "cpe": "cpe:/o:redhat:enterprise_linux:8", "package": "wpa_supplicant-1:2.9-2.el8_3.1", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2021-03-11T00:00:00Z"}, {"advisory": "RHSA-2021:0818", "cpe": "cpe:/o:redhat:rhel_eus:8.1", "package": "wpa_supplicant-1:2.7-2.el8_1.1", "product_name": "Red Hat Enterprise Linux 8.1 Extended Update Support", "release_date": "2021-03-15T00:00:00Z"}, {"advisory": "RHSA-2021:0816", "cpe": "cpe:/o:redhat:rhel_eus:8.2", "package": "wpa_supplicant-1:2.9-2.el8_2.1", "product_name": "Red Hat Enterprise Linux 8.2 Extended Update Support", "release_date": "2021-03-15T00:00:00Z"}], "bugzilla": {"description": "wpa_supplicant: Use-after-free in P2P provision discovery processing", "id": "1933361", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1933361"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.5", "cvss3_scoring_vector": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H", "status": "verified"}, "cwe": "CWE-416", "details": ["A vulnerability was discovered in how p2p/p2p_pd.c in wpa_supplicant before 2.10 processes P2P (Wi-Fi Direct) provision discovery requests. It could result in denial of service or other impact (potentially execution of arbitrary code), for an attacker within radio range.", "A flaw was found in the wpa_supplicant, in the way it processes P2P (Wi-Fi Direct) provision discovery requests. This flaw allows an attacker who is within radio range of the device running P2P discovery to cause termination of the wpa_supplicant process or potentially cause code execution. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability."], "mitigation": {"lang": "en:us", "value": "Disable the P2P (control interface command \"P2P_SET disabled 1\" or \"p2p_disabled=1\" in (each, if multiple interfaces used) wpa_supplicant configuration file)"}, "name": "CVE-2021-27803", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "wpa_supplicant", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "wpa_supplicant", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2021-02-25T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2021-27803\nhttps://nvd.nist.gov/vuln/detail/CVE-2021-27803\nhttps://w1.fi/security/2021-1/wpa_supplicant-p2p-provision-discovery-processing-vulnerability.txt"], "statement": "An attacker (or a system controlled by the attacker) needs to be within radio range of the vulnerable system to send a set of suitably constructed management frames that trigger the corner case to be reached in the management of the P2P peer table.", "threat_severity": "Important"}

{}