{"id":"CVE-2018-20784","state":"PUBLISHED","title":"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 p","description":"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.","publishedAt":"2019-02-22T15:00:00.000Z","updatedAt":"2024-08-05T12:12:27.694Z","severity":null,"assigner":"mitre","products":["n/a n/a"],"affected":[{"vendor":"n/a","product":"n/a","versions":[{"version":"n/a","status":"affected"}]}],"references":["https://github.com/torvalds/linux/commit/c40f7d74c741a907cfaeb73a7697081881c497d0","http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c40f7d74c741a907cfaeb73a7697081881c497d0","https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.20.2","https://access.redhat.com/errata/RHSA-2019:1959","https://access.redhat.com/errata/RHSA-2019:1971","https://usn.ubuntu.com/4115-1/","https://usn.ubuntu.com/4118-1/","https://usn.ubuntu.com/4211-2/","https://usn.ubuntu.com/4211-1/"],"weaknesses":[],"ingestedAt":"2026-10-29T19:44:39.424Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2018/20xxx/CVE-2018-20784.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2018-20784","state":"PUBLISHED","datePublished":"2019-02-22T15:00:00.000Z","dateUpdated":"2024-08-05T12:12:27.694Z","assignerShortName":"mitre","assignerOrgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","dateReserved":"2019-02-22T00:00:00.000Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"n/a","product":"n/a","versions":[{"version":"n/a","status":"affected"}]}],"references":[{"url":"https://github.com/torvalds/linux/commit/c40f7d74c741a907cfaeb73a7697081881c497d0","tags":["x_refsource_MISC"]},{"url":"http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c40f7d74c741a907cfaeb73a7697081881c497d0","tags":["x_refsource_MISC"]},{"url":"https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.20.2","tags":["x_refsource_MISC"]},{"url":"https://access.redhat.com/errata/RHSA-2019:1959","name":"RHSA-2019:1959","tags":["vendor-advisory","x_refsource_REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2019:1971","name":"RHSA-2019:1971","tags":["vendor-advisory","x_refsource_REDHAT"]},{"url":"https://usn.ubuntu.com/4115-1/","name":"USN-4115-1","tags":["vendor-advisory","x_refsource_UBUNTU"]},{"url":"https://usn.ubuntu.com/4118-1/","name":"USN-4118-1","tags":["vendor-advisory","x_refsource_UBUNTU"]},{"url":"https://usn.ubuntu.com/4211-2/","name":"USN-4211-2","tags":["vendor-advisory","x_refsource_UBUNTU"]},{"url":"https://usn.ubuntu.com/4211-1/","name":"USN-4211-1","tags":["vendor-advisory","x_refsource_UBUNTU"]}],"problemTypes":[{"descriptions":[{"description":"n/a","lang":"en","type":"text"}]}],"providerMetadata":{"shortName":"mitre","dateUpdated":"2019-12-10T01:06:03.000Z","orgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca"},"datePublic":"2019-02-22T00:00:00.000Z","x_legacyV4Record":{"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'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."}]},"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/"}]}}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://github.com/torvalds/linux/commit/c40f7d74c741a907cfaeb73a7697081881c497d0","tags":["x_refsource_MISC","x_transferred"]},{"url":"http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c40f7d74c741a907cfaeb73a7697081881c497d0","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.20.2","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://access.redhat.com/errata/RHSA-2019:1959","name":"RHSA-2019:1959","tags":["vendor-advisory","x_refsource_REDHAT","x_transferred"]},{"url":"https://access.redhat.com/errata/RHSA-2019:1971","name":"RHSA-2019:1971","tags":["vendor-advisory","x_refsource_REDHAT","x_transferred"]},{"url":"https://usn.ubuntu.com/4115-1/","name":"USN-4115-1","tags":["vendor-advisory","x_refsource_UBUNTU","x_transferred"]},{"url":"https://usn.ubuntu.com/4118-1/","name":"USN-4118-1","tags":["vendor-advisory","x_refsource_UBUNTU","x_transferred"]},{"url":"https://usn.ubuntu.com/4211-2/","name":"USN-4211-2","tags":["vendor-advisory","x_refsource_UBUNTU","x_transferred"]},{"url":"https://usn.ubuntu.com/4211-1/","name":"USN-4211-1","tags":["vendor-advisory","x_refsource_UBUNTU","x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-05T12:12:27.694Z"}}]}}}