Resource Exhaustion Affecting bpftool package, versions <0:4.18.0-147.el8


Severity

Recommended
high

Based on CentOS security rating.

Threat Intelligence

EPSS
0.04% (12th percentile)

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  • Snyk IDSNYK-CENTOS8-BPFTOOL-1997194
  • published26 Jul 2021
  • disclosed2 Apr 2019

Introduced: 2 Apr 2019

CVE-2019-3882  (opens in a new tab)
CWE-400  (opens in a new tab)

How to fix?

Upgrade Centos:8 bpftool to version 0:4.18.0-147.el8 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:8 relevant fixed versions and status.

A flaw was found in the Linux kernel's vfio interface implementation that permits violation of the user's locked memory limit. If a device is bound to a vfio driver, such as vfio-pci, and the local attacker is administratively granted ownership of the device, it may cause a system memory exhaustion and thus a denial of service (DoS). Versions 3.10, 4.14 and 4.18 are vulnerable.

CVSS Scores

version 3.1