vulnerability

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

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Severity
8
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:C)
Published
Jul 2, 2017
Added
Aug 28, 2019
Modified
May 25, 2023

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)

centos-upgrade-kernelcentos-upgrade-kernel-rt

References

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