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NULL Pointer Dereference Affecting bpftool package, versions <0:3.10.0-957.1.3.el7

Severity

 Recommended
0.0
medium
0
10

Based on CentOS security rating

    Threat Intelligence

    EPSS
    0.04% (6th percentile)

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  • Snyk ID SNYK-CENTOS7-BPFTOOL-2132079
  • published 26 Jul 2021
  • disclosed 26 Nov 2018
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Introduced: 26 Nov 2018

CVE-2018-14646 Open this link in a new tab
CWE-476 Open this link in a new tab

How to fix?

Upgrade Centos:7 bpftool to version 0:3.10.0-957.1.3.el7 or higher.

NVD Description

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

The Linux kernel before 4.15-rc8 was found to be vulnerable to a NULL pointer dereference bug in the __netlink_ns_capable() function in the net/netlink/af_netlink.c file. A local attacker could exploit this when a net namespace with a netnsid is assigned to cause a kernel panic and a denial of service.