What’s Vulnerable › Vulnerabilities

CVE-2020-14378

• Severity: low (CVSS 3.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-09-30 · updated 2026-06-17
• Weakness: CWE-191

Description

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.

Affected products

• Canonical Ubuntu Linux: 20.04
• DPDK Data Plane Development Kit: from 18.02.1 before 18.11.10; from 19.02 before 19.11.5 — fixed in 18.11.10, 19.11.5
• openSUSE Leap: 15.1, 15.2

How to fix

Upgrade to a fixed version: DPDK Data Plane Development Kit 18.11.10, 19.11.5. Check the vendor advisory for mitigations.

References

• http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00004.html
• http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00006.html
• http://www.openwall.com/lists/oss-security/2021/01/04/1
• http://www.openwall.com/lists/oss-security/2021/01/04/2
• http://www.openwall.com/lists/oss-security/2021/01/04/5
• https://bugzilla.redhat.com/show_bug.cgi?id=1879473
• https://usn.ubuntu.com/4550-1/
• https://www.openwall.com/lists/oss-security/2020/09/28/3
• http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00004.html
• http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00006.html
• http://www.openwall.com/lists/oss-security/2021/01/04/1
• http://www.openwall.com/lists/oss-security/2021/01/04/2

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