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CVE-2018-20784 PUBLISHED

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.

EPSS 0.72% · 72.2th percentile

Risk Scores

EPSS Score
0.72%
72.2th percentile

Affected Products

VendorProductVersions
Ubuntu:18.04:LTSlinux-gke-4.154.15.0-1033.35, 4.15.0-1034.36, 4.15.0-1036.38
Ubuntu:20.04:LTSlinux-gke5.4.0-1043.45, 5.4.0-1104.111, 5.4.0-1103.110
Ubuntu:22.04:LTSlinux-intel-iot-realtime0, 5.15.0-1073.75
Ubuntu:18.04:LTSlinux-azure4.15.0-1003.3, 4.15.0-1002.2, 0
Ubuntu:18.04:LTSlinux4.15.0-43.46, 0, 4.13.0-16.19
Ubuntu:16.04:LTSlinux-gcp4.13.0-1015.19, 4.13.0-1017.21, 4.15.0-1015.15~16.04.1
Ubuntu:16.04:LTSlinux-aws-hwe0, 4.15.0-1041.43~16.04.1, 4.15.0-1043.45~16.04.1
Ubuntu:Pro:FIPS:18.04:LTSlinux-azure-fips4.15.0-1002.2, 0
Ubuntu:Pro:FIPS-updates:18.04:LTSlinux-azure-fips0, 4.15.0-1002.2
Ubuntu:18.04:LTSlinux-raspi24.15.0-1022.24, 4.15.0-1024.26, 4.15.0-1026.28
Ubuntu:Pro:FIPS:18.04:LTSlinux-gcp-fips0, 4.15.0-1001.1
Ubuntu:Pro:14.04:LTSlinux-azure4.15.0-1036.38~14.04.2, 0, 4.15.0-1023.24~14.04.1
Ubuntu:20.04:LTSlinux-azure-fde5.4.0-1072.75+cvm1.1, 5.4.0-1073.76+cvm1.1, 5.4.0-1074.77+cvm1.1
Ubuntu:16.04:LTSlinux-azure4.13.0-1016.19, 4.13.0-1018.21, 4.15.0-1013.13~16.04.2
Ubuntu:16.04:LTSlinux-aws4.4.0-1092.103, 0, 4.4.0-1001.10
Ubuntu:16.04:LTSlinux-oracle4.15.0-1014.16~16.04.1, 4.15.0-1021.23~16.04.1, 4.15.0-1018.20~16.04.1
Ubuntu:16.04:LTSlinux-kvm4.4.0-1059.66, 4.4.0-1058.65, 4.4.0-1056.63
Ubuntu:Pro:FIPS:16.04:LTSlinux-fips4.4.0-1017.22, 4.4.0-1002.2, 4.4.0-1001.1
Ubuntu:20.04:LTSlinux-riscv0, 5.4.0-40.45, 5.4.0-39.44
Ubuntu:18.04:LTSlinux-snapdragon4.4.0-1077.82, 4.15.0-1060.66, 4.15.0-1058.64

…and 17 more

Timeline

References

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