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Ubuntu: USN-4076-1 (CVE-2018-20836): Linux kernel vulnerabilities

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Ubuntu: USN-4076-1 (CVE-2018-20836): Linux kernel vulnerabilities

Severity
9
CVSS
(AV:N/AC:M/Au:N/C:C/I:C/A:C)
Published
05/07/2019
Created
07/27/2019
Added
07/26/2019
Modified
03/22/2023

Description

An issue was discovered in the Linux kernel before 4.20. There is a race condition in smp_task_timedout() and smp_task_done() in drivers/scsi/libsas/sas_expander.c, leading to a use-after-free.

Solution(s)

  • ubuntu-upgrade-linux-image-4-4-0-1052-kvm
  • ubuntu-upgrade-linux-image-4-4-0-1088-aws
  • ubuntu-upgrade-linux-image-4-4-0-1117-raspi2
  • ubuntu-upgrade-linux-image-4-4-0-157-generic
  • ubuntu-upgrade-linux-image-4-4-0-157-generic-lpae
  • ubuntu-upgrade-linux-image-4-4-0-157-lowlatency
  • ubuntu-upgrade-linux-image-4-4-0-157-powerpc-e500mc
  • ubuntu-upgrade-linux-image-4-4-0-157-powerpc-smp
  • ubuntu-upgrade-linux-image-4-4-0-157-powerpc64-emb
  • ubuntu-upgrade-linux-image-4-4-0-157-powerpc64-smp
  • ubuntu-upgrade-linux-image-aws
  • ubuntu-upgrade-linux-image-generic
  • ubuntu-upgrade-linux-image-generic-lpae
  • ubuntu-upgrade-linux-image-kvm
  • ubuntu-upgrade-linux-image-lowlatency
  • ubuntu-upgrade-linux-image-powerpc-e500mc
  • ubuntu-upgrade-linux-image-powerpc-smp
  • ubuntu-upgrade-linux-image-powerpc64-emb
  • ubuntu-upgrade-linux-image-powerpc64-smp
  • ubuntu-upgrade-linux-image-raspi2
  • ubuntu-upgrade-linux-image-virtual

References

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