gsd-2018-20784
Vulnerability from gsd
Modified
2023-12-13 01:22
Details
In the Linux kernel before 4.20.2, kernel/sched/fair.c mishandles leaf cfs_rq's, which allows attackers to cause a denial of service (infinite loop in update_blocked_averages) or possibly have unspecified other impact by inducing a high load.
Aliases
Aliases
{ "GSD": { "alias": "CVE-2018-20784", "description": "In the Linux kernel before 4.20.2, kernel/sched/fair.c mishandles leaf cfs_rq\u0027s, which allows attackers to cause a denial of service (infinite loop in update_blocked_averages) or possibly have unspecified other impact by inducing a high load.", "id": "GSD-2018-20784", "references": [ "https://www.suse.com/security/cve/CVE-2018-20784.html", "https://access.redhat.com/errata/RHSA-2019:1971", "https://access.redhat.com/errata/RHSA-2019:1959", "https://ubuntu.com/security/CVE-2018-20784", "https://linux.oracle.com/cve/CVE-2018-20784.html" ] }, "gsd": { "metadata": { "exploitCode": "unknown", "remediation": "unknown", "reportConfidence": "confirmed", "type": "vulnerability" }, "osvSchema": { "aliases": [ "CVE-2018-20784" ], "details": "In the Linux kernel before 4.20.2, kernel/sched/fair.c mishandles leaf cfs_rq\u0027s, which allows attackers to cause a denial of service (infinite loop in update_blocked_averages) or possibly have unspecified other impact by inducing a high load.", "id": "GSD-2018-20784", "modified": "2023-12-13T01:22:28.936098Z", "schema_version": "1.4.0" } }, "namespaces": { "cve.org": { "CVE_data_meta": { "ASSIGNER": "cve@mitre.org", "ID": "CVE-2018-20784", "STATE": "PUBLIC" }, "affects": { "vendor": { "vendor_data": [ { "product": { "product_data": [ { "product_name": "n/a", "version": { "version_data": [ { "version_value": "n/a" } ] } } ] }, "vendor_name": "n/a" } ] } }, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "eng", "value": "In the Linux kernel before 4.20.2, kernel/sched/fair.c mishandles leaf cfs_rq\u0027s, which allows attackers to cause a denial of service (infinite loop in update_blocked_averages) or possibly have unspecified other impact by inducing a high load." } ] }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "eng", "value": "n/a" } ] } ] }, "references": { "reference_data": [ { "name": "https://github.com/torvalds/linux/commit/c40f7d74c741a907cfaeb73a7697081881c497d0", "refsource": "MISC", "url": "https://github.com/torvalds/linux/commit/c40f7d74c741a907cfaeb73a7697081881c497d0" }, { "name": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c40f7d74c741a907cfaeb73a7697081881c497d0", "refsource": "MISC", "url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c40f7d74c741a907cfaeb73a7697081881c497d0" }, { "name": "https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.20.2", "refsource": "MISC", "url": "https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.20.2" }, { "name": "RHSA-2019:1959", "refsource": "REDHAT", "url": "https://access.redhat.com/errata/RHSA-2019:1959" }, { "name": "RHSA-2019:1971", "refsource": "REDHAT", "url": "https://access.redhat.com/errata/RHSA-2019:1971" }, { "name": "USN-4115-1", "refsource": "UBUNTU", "url": "https://usn.ubuntu.com/4115-1/" }, { "name": "USN-4118-1", "refsource": "UBUNTU", "url": "https://usn.ubuntu.com/4118-1/" }, { "name": "USN-4211-2", "refsource": "UBUNTU", "url": "https://usn.ubuntu.com/4211-2/" }, { "name": "USN-4211-1", "refsource": "UBUNTU", "url": "https://usn.ubuntu.com/4211-1/" } ] } }, "nvd.nist.gov": { "configurations": { "CVE_data_version": "4.0", "nodes": [ { "children": [], "cpe_match": [ { "cpe23Uri": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "cpe_name": [], "versionEndExcluding": "4.14.93", "versionStartIncluding": "4.13", "vulnerable": true }, { "cpe23Uri": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "cpe_name": [], "versionEndExcluding": "4.19.15", "versionStartIncluding": "4.19", "vulnerable": true }, { "cpe23Uri": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "cpe_name": [], "versionEndExcluding": "4.20.2", "versionStartIncluding": "4.20", "vulnerable": true }, { "cpe23Uri": "cpe:2.3:o:linux:linux_kernel:5.0:rc1:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true } ], "operator": "OR" }, { "children": [], "cpe_match": [ { "cpe23Uri": "cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*", "cpe_name": [], "vulnerable": true }, { "cpe23Uri": "cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*", "cpe_name": [], "vulnerable": true }, { "cpe23Uri": "cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*", "cpe_name": [], "vulnerable": true } ], "operator": "OR" }, { "children": [], "cpe_match": [ { "cpe23Uri": "cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true }, { "cpe23Uri": "cpe:2.3:o:redhat:enterprise_linux_for_real_time:8:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true } ], "operator": "OR" } ] }, "cve": { "CVE_data_meta": { "ASSIGNER": "cve@mitre.org", "ID": "CVE-2018-20784" }, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "en", "value": "In the Linux kernel before 4.20.2, kernel/sched/fair.c mishandles leaf cfs_rq\u0027s, which allows attackers to cause a denial of service (infinite loop in update_blocked_averages) or possibly have unspecified other impact by inducing a high load." } ] }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "en", "value": "CWE-835" } ] } ] }, "references": { "reference_data": [ { "name": "https://github.com/torvalds/linux/commit/c40f7d74c741a907cfaeb73a7697081881c497d0", "refsource": "MISC", "tags": [ "Patch", "Third Party Advisory" ], "url": "https://github.com/torvalds/linux/commit/c40f7d74c741a907cfaeb73a7697081881c497d0" }, { "name": "https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.20.2", "refsource": "MISC", "tags": [ "Release Notes", "Vendor Advisory" ], "url": "https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.20.2" }, { "name": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c40f7d74c741a907cfaeb73a7697081881c497d0", "refsource": "MISC", "tags": [ "Patch", "Vendor Advisory" ], "url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c40f7d74c741a907cfaeb73a7697081881c497d0" }, { "name": "RHSA-2019:1959", "refsource": "REDHAT", "tags": [ "Third Party Advisory" ], "url": "https://access.redhat.com/errata/RHSA-2019:1959" }, { "name": "RHSA-2019:1971", "refsource": "REDHAT", "tags": [ "Third Party Advisory" ], "url": "https://access.redhat.com/errata/RHSA-2019:1971" }, { "name": "USN-4115-1", "refsource": "UBUNTU", "tags": [ "Third Party Advisory" ], "url": "https://usn.ubuntu.com/4115-1/" }, { "name": "USN-4118-1", "refsource": "UBUNTU", "tags": [ "Third Party Advisory" ], "url": "https://usn.ubuntu.com/4118-1/" }, { "name": "USN-4211-2", "refsource": "UBUNTU", "tags": [ "Third Party Advisory" ], "url": "https://usn.ubuntu.com/4211-2/" }, { "name": "USN-4211-1", "refsource": "UBUNTU", "tags": [ "Third Party Advisory" ], "url": "https://usn.ubuntu.com/4211-1/" } ] } }, "impact": { "baseMetricV2": { "acInsufInfo": false, "cvssV2": { "accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 7.5, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0" }, "exploitabilityScore": 10.0, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "severity": "HIGH", "userInteractionRequired": false }, "baseMetricV3": { "cvssV3": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1" }, "exploitabilityScore": 3.9, "impactScore": 5.9 } }, "lastModifiedDate": "2021-06-02T15:28Z", "publishedDate": "2019-02-22T15:29Z" } } }
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Sightings
Author | Source | Type | Date |
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Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
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- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.