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LIN8-7101 : Security Advisory - linux - CVE-2017-8797

Created: Jul 13, 2017    Updated: Dec 3, 2018
Resolved Date: Jul 28, 2017
Found In Version: 8.0.0.19
Fix Version: 8.0.0.20
Severity: Standard
Applicable for: Wind River Linux 8
Component/s: Kernel

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.

https://nvd.nist.gov/vuln/detail/CVE-2017-8797

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