CVE-2019-5489

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(Fixing this affects the output of the fincore program.) Limited remote exploitation may be possible, as demonstrated by latency differences in accessing public files from an Apache HTTP Server."}, {"lang": "es", "value": "La implementaci\u00f3n mincore() en mm/mincore.c en el kernel de Linux hasta la versi\u00f3n 4.19.13 permit\u00eda a los atacantes observar patrones de acceso a las p\u00e1ginas de cach\u00e9 de otros procesos en el mismo sistema, permitiendo el esnifado de informaci\u00f3n secreta. (Su arreglo afecta a la salida del programa fincore.) Puede ser posible una explotaci\u00f3n remota limitada, tal y como queda demostrado con las diferencias en latencia a la hora de acceder a archivos p\u00fablicos desde un servidor Apache HHTP."}], "id": "CVE-2019-5489", "lastModified": "2026-06-17T02:37:46.983", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "LOW", "cvssData": {"accessComplexity": "LOW", "accessVector": "LOCAL", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 2.1, "confidentialityImpact": "PARTIAL", "integrityImpact": "NONE", "vectorString": "AV:L/AC:L/Au:N/C:P/I:N/A:N", "version": "2.0"}, "exploitabilityScore": 3.9, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV30": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "version": "3.0"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2019-01-07T17:29:00.470", "references": [{"source": "cve@mitre.org", "tags": ["Patch", "Vendor Advisory"], "url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=574823bfab82d9d8fa47f422778043fbb4b4f50e"}, {"source": "cve@mitre.org", "url": "http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00071.html"}, {"source": "cve@mitre.org", "url": "http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00039.html"}, {"source": "cve@mitre.org", "url": "http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00048.html"}, {"source": "cve@mitre.org", "url": 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{"affected_release": [{"advisory": "RHSA-2019:2808", "cpe": "cpe:/o:redhat:rhel_els:5", "package": "kernel-0:2.6.18-439.el5", "product_name": "Red Hat Enterprise Linux 5 Extended Lifecycle Support", "release_date": "2019-09-19T00:00:00Z"}, {"advisory": "RHSA-2019:2473", "cpe": "cpe:/o:redhat:enterprise_linux:6", "package": "kernel-0:2.6.32-754.18.2.el6", "product_name": "Red Hat Enterprise Linux 6", "release_date": "2019-08-13T00:00:00Z"}, {"advisory": "RHSA-2019:4056", "cpe": "cpe:/o:redhat:rhel_aus:6.5", "package": "kernel-0:2.6.32-431.97.1.el6", "product_name": "Red Hat Enterprise Linux 6.5 Advanced Update Support", "release_date": "2019-12-03T00:00:00Z"}, {"advisory": "RHSA-2019:4255", "cpe": "cpe:/o:redhat:rhel_aus:6.6", "package": "kernel-0:2.6.32-504.82.1.el6", "product_name": "Red Hat Enterprise Linux 6.6 Advanced Update Support", "release_date": "2019-12-17T00:00:00Z"}, {"advisory": "RHSA-2019:2043", "cpe": "cpe:/a:redhat:rhel_extras_rt:7", "package": "kernel-rt-0:3.10.0-1062.rt56.1022.el7", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2019-08-07T00:00:00Z"}, {"advisory": "RHSA-2019:2029", "cpe": "cpe:/o:redhat:enterprise_linux:7", "package": "kernel-0:3.10.0-1062.el7", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2019-08-06T00:00:00Z"}, {"advisory": "RHSA-2019:2809", "cpe": "cpe:/o:redhat:enterprise_linux:7", "package": "kernel-alt-0:4.14.0-115.12.1.el7a", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2019-09-20T00:00:00Z"}, {"advisory": "RHSA-2019:4164", "cpe": "cpe:/o:redhat:rhel_aus:7.2", "package": "kernel-0:3.10.0-327.83.1.el7", "product_name": "Red Hat Enterprise Linux 7.2 Advanced Update Support", "release_date": "2019-12-10T00:00:00Z"}, {"advisory": "RHSA-2019:4164", "cpe": "cpe:/o:redhat:rhel_tus:7.2", "package": "kernel-0:3.10.0-327.83.1.el7", "product_name": "Red Hat Enterprise Linux 7.2 Telco Extended Update Support", "release_date": "2019-12-10T00:00:00Z"}, {"advisory": "RHSA-2019:4164", "cpe": "cpe:/o:redhat:rhel_e4s:7.2", "package": "kernel-0:3.10.0-327.83.1.el7", "product_name": "Red Hat Enterprise Linux 7.2 Update Services for SAP Solutions", "release_date": "2019-12-10T00:00:00Z"}, {"advisory": "RHSA-2019:4159", "cpe": "cpe:/o:redhat:rhel_aus:7.3", "package": "kernel-0:3.10.0-514.71.1.el7", "product_name": "Red Hat Enterprise Linux 7.3 Advanced Update Support", "release_date": "2019-12-10T00:00:00Z"}, {"advisory": "RHSA-2019:4159", "cpe": "cpe:/o:redhat:rhel_tus:7.3", "package": "kernel-0:3.10.0-514.71.1.el7", "product_name": "Red Hat Enterprise Linux 7.3 Telco Extended Update Support", "release_date": "2019-12-10T00:00:00Z"}, {"advisory": "RHSA-2019:4159", "cpe": "cpe:/o:redhat:rhel_e4s:7.3", "package": "kernel-0:3.10.0-514.71.1.el7", "product_name": "Red Hat Enterprise Linux 7.3 Update Services for SAP Solutions", "release_date": "2019-12-10T00:00:00Z"}, {"advisory": "RHSA-2019:4058", "cpe": "cpe:/o:redhat:rhel_aus:7.4", "package": "kernel-0:3.10.0-693.61.1.el7", "product_name": "Red Hat Enterprise Linux 7.4 Advanced Update Support", "release_date": "2019-12-03T00:00:00Z"}, {"advisory": "RHSA-2019:4058", "cpe": "cpe:/o:redhat:rhel_tus:7.4", "package": "kernel-0:3.10.0-693.61.1.el7", "product_name": "Red Hat Enterprise Linux 7.4 Telco Extended Update Support", "release_date": "2019-12-03T00:00:00Z"}, {"advisory": "RHSA-2019:4058", "cpe": "cpe:/o:redhat:rhel_e4s:7.4", "package": "kernel-0:3.10.0-693.61.1.el7", "product_name": "Red Hat Enterprise Linux 7.4 Update Services for SAP Solutions", "release_date": "2019-12-03T00:00:00Z"}, {"advisory": "RHSA-2019:3967", "cpe": "cpe:/o:redhat:rhel_eus:7.5", "package": "kernel-0:3.10.0-862.44.2.el7", "product_name": "Red Hat Enterprise Linux 7.5 Extended Update Support", "release_date": "2019-11-26T00:00:00Z"}, {"advisory": "RHSA-2019:2837", "cpe": "cpe:/o:redhat:rhel_eus:7.6", "package": "kernel-0:3.10.0-957.35.1.el7", "product_name": "Red Hat Enterprise Linux 7.6 Extended Update Support", "release_date": "2019-09-20T00:00:00Z"}, {"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"}, {"advisory": "RHSA-2020:0204", "cpe": "cpe:/o:redhat:rhel_e4s:8.0", "package": "kernel-0:4.18.0-80.15.1.el8_0", "product_name": "Red Hat Enterprise Linux 8.0 Update Services for SAP Solutions", "release_date": "2020-01-22T00:00:00Z"}, {"advisory": "RHSA-2019:4057", "cpe": "cpe:/a:redhat:enterprise_mrg:2:server:el6", "package": "kernel-rt-1:3.10.0-693.61.1.rt56.656.el6rt", "product_name": "Red Hat Enterprise MRG 2", "release_date": "2019-12-03T00:00:00Z"}, {"advisory": "RHSA-2019:2837", "cpe": "cpe:/o:redhat:enterprise_linux:7::hypervisor", "package": "kernel-0:3.10.0-957.35.1.el7", "product_name": "Red Hat Virtualization 4.2 for Red Hat Enterprise Linux 7.6 EUS", "release_date": "2019-09-20T00:00:00Z"}], "bugzilla": {"description": "Kernel: page cache side channel attacks", "id": "1664110", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1664110"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.1", "cvss3_scoring_vector": "CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:N", "status": "verified"}, "cwe": "CWE-200", "details": ["The mincore() implementation in mm/mincore.c in the Linux kernel through 4.19.13 allowed local attackers to observe page cache access patterns of other processes on the same system, potentially allowing sniffing of secret information. (Fixing this affects the output of the fincore program.) Limited remote exploitation may be possible, as demonstrated by latency differences in accessing public files from an Apache HTTP Server.", "A new software page cache side channel attack scenario was discovered in operating systems that implement the very common 'page cache' caching mechanism. A malicious user/process could use 'in memory' page-cache knowledge to infer access timings to shared memory and gain knowledge which can be used to reduce effectiveness of cryptographic strength by monitoring algorithmic behavior, infer access patterns of memory to determine code paths taken, and exfiltrate data to a blinded attacker through page-granularity access times as a side-channel."], "name": "CVE-2019-5489", "public_date": "2019-01-06T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2019-5489\nhttps://nvd.nist.gov/vuln/detail/CVE-2019-5489"], "threat_severity": "Important"}

{}