CVE-2020-14314

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This flaw allows a local user to crash the system if the directory exists. The highest threat from this vulnerability is to system availability."}, {"lang": "es", "value": "Se encontr\u00f3 un fallo de lectura de memoria fuera de l\u00edmites en el kernel de Linux versiones anteriores a 5.9-rc2, con el sistema de archivos ext3/ext4, en la manera en que accede a un directorio con indexaci\u00f3n rota. Este fallo permite a un usuario local bloquear el sistema si el directorio existe. La mayor amenaza de esta vulnerabilidad es la disponibilidad del sistema"}], "id": "CVE-2020-14314", "lastModified": "2026-06-17T02:54:31.253", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "LOW", "cvssData": {"accessComplexity": "LOW", "accessVector": "LOCAL", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 2.1, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:L/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0"}, "exploitabilityScore": 3.9, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": 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{"acknowledgement": "This issue was discovered by Jay Shin (Red Hat).", "affected_release": [{"advisory": "RHSA-2020:5441", "cpe": "cpe:/a:redhat:rhel_extras_rt:7", "package": "kernel-rt-0:3.10.0-1160.11.1.rt56.1145.el7", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2020-12-15T00:00:00Z"}, {"advisory": "RHSA-2020:5437", "cpe": "cpe:/o:redhat:enterprise_linux:7", "package": "kernel-0:3.10.0-1160.11.1.el7", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2020-12-15T00:00:00Z"}, {"advisory": "RHSA-2021:1739", "cpe": "cpe:/a:redhat:enterprise_linux:8::nfv", "package": "kernel-rt-0:4.18.0-305.rt7.72.el8", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2021-05-18T00:00:00Z"}, {"advisory": "RHSA-2021:1578", "cpe": "cpe:/o:redhat:enterprise_linux:8", "package": "kernel-0:4.18.0-305.el8", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2021-05-18T00:00:00Z"}], "bugzilla": {"description": "kernel: buffer uses out of index in ext3/4 filesystem", "id": "1853922", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1853922"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "verified"}, "cwe": "CWE-125", "details": ["A memory out-of-bounds read flaw was found in the Linux kernel before 5.9-rc2 with the ext3/ext4 file system, in the way it accesses a directory with broken indexing. This flaw allows a local user to crash the system if the directory exists. The highest threat from this vulnerability is to system availability.", "A memory out-of-bounds read flaw was found in the Linux kernel's ext3/ext4 file system, in the way it accesses a directory with broken indexing. This flaw allows a local user to crash the system if the directory exists. The highest threat from this vulnerability is to system availability."], "mitigation": {"lang": "en:us", "value": "If any directories of the partition (or image) broken, the command \"e2fsck -Df .../partition-name\" fixes it."}, "name": "CVE-2020-14314", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 5"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "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", "product_name": "Red Hat Enterprise MRG 2"}], "public_date": "2020-06-05T16:45:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2020-14314\nhttps://nvd.nist.gov/vuln/detail/CVE-2020-14314\nhttps://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=5872331b3d91820e14716632ebb56b1399b34fe1\nhttps://lore.kernel.org/linux-ext4/f53e246b-647c-64bb-16ec-135383c70ad7@redhat.com/T/#u"], "threat_severity": "Moderate"}

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