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An attack may be conducted by hosting a crafted web page that uses WebRTC or gQUIC to force UDP traffic to attacker-controlled IP addresses."}, {"lang": "es", "value": "En el kernel de Linux anterior a versi\u00f3n 5.1.7, un atacante puede rastrear un dispositivo utilizando los valores ID de IP que el kernel produce para los protocolos sin conexi\u00f3n (por ejemplo, UDP e ICMP). Cuando dicho tr\u00e1fico se env\u00eda a m\u00faltiples direcciones IP de destino, es posible obtener colisiones de hash (de \u00edndices en la matriz counter) y, de este modo, obtener la clave de hashing (mediante enumeraci\u00f3n). Puede ser conducido un ataque mediante el alojamiento de una p\u00e1gina web especialmente dise\u00f1ada que utiliza WebRTC o gQUIC para forzar el tr\u00e1fico UDP a las direcciones IP controladas por el atacante."}], "id": "CVE-2019-10638", "lastModified": "2021-06-14T18:15:15.313", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 4.3, "confidentialityImpact": "PARTIAL", "integrityImpact": "NONE", "vectorString": "AV:N/AC:M/Au:N/C:P/I:N/A:N", "version": "2.0"}, "exploitabilityScore": 8.6, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": true}], "cvssMetricV30": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N", "version": "3.0"}, "exploitabilityScore": 2.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2019-07-05T23:15:10.367", "references": [{"source": "cve@mitre.org", "url": "http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00014.html"}, {"source": "cve@mitre.org", "url": "http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00025.html"}, {"source": "cve@mitre.org", "url": "http://packetstormsecurity.com/files/155212/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "http://www.securityfocus.com/bid/109092"}, {"source": "cve@mitre.org", "url": "https://access.redhat.com/errata/RHSA-2019:3309"}, {"source": "cve@mitre.org", "url": "https://access.redhat.com/errata/RHSA-2019:3517"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "https://arxiv.org/pdf/1906.10478.pdf"}, {"source": "cve@mitre.org", "tags": ["Mailing List", "Release Notes", "Vendor Advisory"], "url": "https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.0.8"}, {"source": "cve@mitre.org", "tags": ["Mailing List", "Release Notes", "Vendor Advisory"], "url": "https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.1.7"}, {"source": "cve@mitre.org", "tags": ["Mailing List", "Patch", "Vendor Advisory"], "url": "https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=355b98553789b646ed97ad801a619ff898471b92"}, {"source": "cve@mitre.org", "tags": ["Mailing List", "Patch", "Vendor Advisory"], "url": "https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=df453700e8d81b1bdafdf684365ee2b9431fb702"}, {"source": "cve@mitre.org", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/torvalds/linux/commit/355b98553789b646ed97ad801a619ff898471b92"}, {"source": "cve@mitre.org", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/torvalds/linux/commit/55f0fc7a02de8f12757f4937143d8d5091b2e40b"}, {"source": "cve@mitre.org", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/torvalds/linux/commit/df453700e8d81b1bdafdf684365ee2b9431fb702"}, {"source": "cve@mitre.org", "url": "https://lists.debian.org/debian-lts-announce/2019/08/msg00016.html"}, {"source": "cve@mitre.org", "url": "https://lists.debian.org/debian-lts-announce/2019/08/msg00017.html"}, {"source": "cve@mitre.org", "url": "https://seclists.org/bugtraq/2019/Aug/13"}, {"source": "cve@mitre.org", "url": "https://seclists.org/bugtraq/2019/Aug/18"}, {"source": "cve@mitre.org", "url": "https://seclists.org/bugtraq/2019/Nov/11"}, {"source": "cve@mitre.org", "url": "https://security.netapp.com/advisory/ntap-20190806-0001/"}, {"source": "cve@mitre.org", "url": "https://usn.ubuntu.com/4114-1/"}, {"source": "cve@mitre.org", "url": "https://usn.ubuntu.com/4115-1/"}, {"source": "cve@mitre.org", "url": "https://usn.ubuntu.com/4116-1/"}, {"source": "cve@mitre.org", "url": "https://usn.ubuntu.com/4117-1/"}, {"source": "cve@mitre.org", "url": "https://usn.ubuntu.com/4118-1/"}, {"source": "cve@mitre.org", "url": "https://www.debian.org/security/2019/dsa-4495"}, {"source": "cve@mitre.org", "url": "https://www.debian.org/security/2019/dsa-4497"}, {"source": "cve@mitre.org", "url": "https://www.oracle.com/security-alerts/cpuApr2021.html"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-326"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"affected_release": [{"advisory": "RHSA-2020:1070", "cpe": "cpe:/a:redhat:rhel_extras_rt:7", "package": "kernel-rt-0:3.10.0-1127.rt56.1093.el7", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2020-03-31T00:00:00Z"}, {"advisory": "RHSA-2020:1016", "cpe": "cpe:/o:redhat:enterprise_linux:7", "package": "kernel-0:3.10.0-1127.el7", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2020-03-31T00:00:00Z"}, {"advisory": "RHSA-2019:3309", "cpe": "cpe:/a:redhat:enterprise_linux:8::nfv", "package": "kernel-rt-0:4.18.0-147.rt24.93.el8", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2019-11-05T00:00:00Z"}, {"advisory": "RHSA-2019:3517", "cpe": "cpe:/o:redhat:enterprise_linux:8", "package": "kernel-0:4.18.0-147.el8", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2019-11-05T00:00:00Z"}], "bugzilla": {"description": "Kernel: net: weak IP ID generation leads to remote device tracking", "id": "1729931", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1729931"}, "csaw": false, "cvss3": {"cvss3_base_score": "3.7", "cvss3_scoring_vector": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N", "status": "verified"}, "cwe": "CWE-331->CWE-200", "details": ["In the Linux kernel before 5.1.7, a device can be tracked by an attacker using the IP ID values the kernel produces for connection-less protocols (e.g., UDP and ICMP). When such traffic is sent to multiple destination IP addresses, it is possible to obtain hash collisions (of indices to the counter array) and thereby obtain the hashing key (via enumeration). An attack may be conducted by hosting a crafted web page that uses WebRTC or gQUIC to force UDP traffic to attacker-controlled IP addresses.", "A flaw was found in the way the Linux kernel derived the IP ID field from a partial kernel space address returned by a net_hash_mix() function. A remote user could observe a weak IP ID generation in this field to track Linux devices."], "name": "CVE-2019-10638", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 5"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Will not fix", "package_name": "kernel-alt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/a:redhat:enterprise_mrg:2", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise MRG 2"}], "public_date": "2019-07-15T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2019-10638\nhttps://nvd.nist.gov/vuln/detail/CVE-2019-10638\nhttps://arxiv.org/pdf/1906.10478.pdf"], "statement": "This issue does not affect the versions of Linux kernel as shipped with Red Hat Enterprise Linux 5 and Red Hat Enterprise Linux 6.\nThis issue affects the version of Linux kernel as shipped with Red Hat Enterprise Linux 7, 8 and Red Hat Enterprise MRG 2. Future kernel updates for Red Hat Enterprise Linux 7, 8 and Red Hat Enterprise MRG 2 may address this issue.", "threat_severity": "Low"}