Vulnerability Monitor

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CVE-2018-20784

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.

Published

2019-02-22T15:29:00.237

Last Modified

2024-11-21T04:02:10.097

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 9.8 (CRITICAL)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:P/I:P/A:P

  • Access Vector: NETWORK
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: PARTIAL
  • Integrity Impact: PARTIAL
  • Availability Impact: PARTIAL
Exploitability Score

10.0

Impact Score

6.4

Weaknesses
  • Type: Primary
    CWE-835
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System linux linux_kernel < 4.14.93 Yes
Operating System linux linux_kernel < 4.19.15 Yes
Operating System linux linux_kernel < 4.20.2 Yes
Operating System linux linux_kernel 5.0 Yes
Operating System canonical ubuntu_linux 14.04 Yes
Operating System canonical ubuntu_linux 16.04 Yes
Operating System canonical ubuntu_linux 18.04 Yes
Operating System redhat enterprise_linux 8.0 Yes
Operating System redhat enterprise_linux_for_real_time 8 Yes
References