Integer Underflow Affecting dpdk package, versions <19.11.4-3.9.1


Severity

Recommended
high

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.4% (32nd percentile)

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  • Snyk IDSNYK-SLES152-DPDK-2702258
  • published14 Apr 2022
  • disclosed28 Sept 2020

Introduced: 28 Sep 2020

CVE-2020-14378  (opens in a new tab)
CWE-191  (opens in a new tab)

How to fix?

Upgrade SLES:15.2 dpdk to version 19.11.4-3.9.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream dpdk package and not the dpdk package as distributed by SLES. See How to fix? for SLES:15.2 relevant fixed versions and status.

An integer underflow in dpdk versions before 18.11.10 and before 19.11.5 in the move_desc function can lead to large amounts of CPU cycles being eaten up in a long running loop. An attacker could cause move_desc to get stuck in a 4,294,967,295-count iteration loop. Depending on how vhost_crypto is being used this could prevent other VMs or network tasks from being serviced by the busy DPDK lcore for an extended period.

CVSS Base Scores

version 3.1