CVE-2020-14378: canonical ubuntu_linux Integer Underflow (Wrap or Wraparound)
Vulnerability summary
CVE-2020-14378 is a low (CVSS 3.3) Integer Underflow (Wrap or Wraparound) vulnerability in canonical ubuntu_linux. EPSS estimates a 0.40% chance of exploitation in the next 30 days, higher than 32.3% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 8 · Related 8Timeline
- 30-09-2020PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
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.
CVSS metrics
4 scores · 3 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated3.3LowCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
- OSV · DebianEcosystem advisory · calculated3.3LowCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
EPSS trend
Probability
0.40%
Chance of exploitation in the next 30 days
Percentile
32%
Versus all other CVEs
30-day change
0.00 pp
From 0.40% on 18-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Canonical1 product
- ubuntu_linuxEOL20.04
Debian1 product
- dpdk< 19.11.5-1
Dpdk1 product
- data_plane_development_kit≥ 18.02.1, < 18.11.10 | ≥ 19.02, < 19.11.5
Opensuse1 product
- leapEOL15.1 | 15.2
Ubuntu1 product
- dpdk< 19.11.3-0ubuntu0.2
5 vendors · 5 products
References
13 links- lists.opensuse.org/opensuse-security-announce/2020-10/msg00004.htmlVendor AdvisoryMailing ListThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2020-10/msg00006.htmlVendor AdvisoryMailing ListThird Party Advisory
