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CentOS Linux: CVE-2018-7757: Important: kernel-alt security, bug fix, and enhancement update (Multiple Advisories)

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CentOS Linux: CVE-2018-7757: Important: kernel-alt security, bug fix, and enhancement update (Multiple Advisories)

Severity
2
CVSS
(AV:L/AC:L/Au:N/C:N/I:N/A:P)
Published
03/08/2018
Created
08/29/2019
Added
08/28/2019
Modified
05/25/2023

Description

Memory leak in the sas_smp_get_phy_events function in drivers/scsi/libsas/sas_expander.c in the Linux kernel through 4.15.7 allows local users to cause a denial of service (memory consumption) via many read accesses to files in the /sys/class/sas_phy directory, as demonstrated by the /sys/class/sas_phy/phy-1:0:12/invalid_dword_count file.

Solution(s)

  • centos-upgrade-kernel
  • centos-upgrade-kernel-rt

References

  • 103348
  • DSA-4187
  • DSA-4188
  • CVE-2018-7757
  • RHSA-2018:2948
  • RHSA-2018:3083
  • RHSA-2018:3096
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