NULL Pointer Dereference Affecting bpftool package, versions <0:3.10.0-957.el7


Severity

Recommended
high

Based on CentOS security rating.

Threat Intelligence

EPSS
0.2% (60th percentile)

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  • Snyk IDSNYK-CENTOS7-BPFTOOL-2109990
  • published26 Jul 2021
  • disclosed22 Mar 2018

Introduced: 22 Mar 2018

CVE-2018-1094  (opens in a new tab)
CWE-476  (opens in a new tab)

How to fix?

Upgrade Centos:7 bpftool to version 0:3.10.0-957.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 ext4_fill_super function in fs/ext4/super.c in the Linux kernel through 4.15.15 does not always initialize the crc32c checksum driver, which allows attackers to cause a denial of service (ext4_xattr_inode_hash NULL pointer dereference and system crash) via a crafted ext4 image.

CVSS Scores

version 3.1