NULL Pointer Dereference Affecting kernel package, versions <0:3.10.0-862.el7


Severity

Recommended
high

Based on CentOS security rating

    Threat Intelligence

    EPSS
    0.67% (81st percentile)

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  • Snyk ID SNYK-CENTOS7-KERNEL-2099918
  • published 26 Jul 2021
  • disclosed 20 Oct 2014

How to fix?

Upgrade Centos:7 kernel to version 0:3.10.0-862.el7 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel package and not the kernel package as distributed by Centos. See How to fix? for Centos:7 relevant fixed versions and status.

The Linux kernel before version 4.11 is vulnerable to a NULL pointer dereference in fs/cifs/cifsencrypt.c:setup_ntlmv2_rsp() that allows an attacker controlling a CIFS server to kernel panic a client that has this server mounted, because an empty TargetInfo field in an NTLMSSP setup negotiation response is mishandled during session recovery.