CVE-2018-20784
Critical
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.
SeverityCritical
CVSS9.8
Exploit probability—
Product
Linux Kernel
PublishedFeb 22, 2019
First seenFeb 22, 2019
How to fix
Update
- linux linux_kernel4.14.93, 4.19.15, 4.20.2 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 4.13 ≤ v < 4.14.93, 4.19 ≤ v < 4.19.15, 4.20 ≤ v < 4.20.2, 5.0 | 4.14.93, 4.19.15, 4.20.2 |
| canonical ubuntu_linux | 14.04, 16.04, 18.04 | — |
| redhat enterprise_linux | 8.0 | — |
| redhat enterprise_linux_for_real_time | 8 | — |
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