Integer Underflow Affecting dpdk-thunderx-kmp-default package, versions <18.11.9_k4.12.14_150.58-3.25.1


Severity

Recommended
critical

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.05% (20th percentile)

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  • Snyk IDSNYK-SLES150-DPDKTHUNDERXKMPDEFAULT-2701947
  • 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:15.0 dpdk-thunderx-kmp-default to version 18.11.9_k4.12.14_150.58-3.25.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream dpdk-thunderx-kmp-default package and not the dpdk-thunderx-kmp-default package as distributed by SLES. See How to fix? for SLES:15.0 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 Scores

version 3.1