Loop with Unreachable Exit Condition ('Infinite Loop') Affecting nbdkit-ssh-plugin package, versions <0:1.16.2-4.module+el8.3.0+6922+fd575af8


Severity

Recommended
medium

Based on CentOS security rating.

Threat Intelligence

Exploit Maturity
Not Defined
EPSS
0.05% (22nd percentile)

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  • Snyk IDSNYK-CENTOS8-NBDKITSSHPLUGIN-2116390
  • published26 Jul 2021
  • disclosed24 Feb 2021

Introduced: 24 Feb 2021

CVE-2021-3416  (opens in a new tab)
CWE-835  (opens in a new tab)

How to fix?

Upgrade Centos:8 nbdkit-ssh-plugin to version 0:1.16.2-4.module+el8.3.0+6922+fd575af8 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream nbdkit-ssh-plugin package and not the nbdkit-ssh-plugin package as distributed by Centos. See How to fix? for Centos:8 relevant fixed versions and status.

A potential stack overflow via infinite loop issue was found in various NIC emulators of QEMU in versions up to and including 5.2.0. The issue occurs in loopback mode of a NIC wherein reentrant DMA checks get bypassed. A guest user/process may use this flaw to consume CPU cycles or crash the QEMU process on the host resulting in DoS scenario.

CVSS Scores

version 3.1