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Red Hat: CVE-2017-8797: Important: kernel security, bug fix, and enhancement update (Multiple Advisories)

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Red Hat: CVE-2017-8797: Important: kernel security, bug fix, and enhancement update (Multiple Advisories)

Severity
8
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:C)
Published
07/02/2017
Created
07/25/2018
Added
08/03/2017
Modified
03/03/2021

Description

The NFSv4 server in the Linux kernel before 4.11.3 does not properly validate the layout type when processing the NFSv4 pNFS GETDEVICEINFO or LAYOUTGET operand in a UDP packet from a remote attacker. This type value is uninitialized upon encountering certain error conditions. This value is used as an array index for dereferencing, which leads to an OOPS and eventually a DoS of knfsd and a soft-lockup of the whole system.

Solution(s)

  • redhat-upgrade-kernel
  • redhat-upgrade-kernel-rt

References

  • 99298
  • CVE-2017-8797
  • RHSA-2017:1842
  • RHSA-2017:2077
  • RHSA-2017:2437
  • RHSA-2017:2669
  • 1038790
View more

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