CVE-2020-14375
dpdk: time-of-check time-of-use vulnerabilities throughout vhost_crypto.c
Severity
ImportantRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · September 29, 2020
Updated · June 28, 2026
Description
A flaw was found in dpdk. Virtio ring descriptors, and the data they describe are in a region of memory accessible by from both the virtual machine and the host. An attacker in a VM can change the contents of the memory after vhost_crypto has validated it. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
Statement
This flaw does not affect the versions of dpdk as shipped with Red Hat Enterprise Linux 7 and 8 or the versions embedded in Red Hat Virtualization or the Fast Datapath openvswitch package, as they do not enable generic crypto device library support. This causes the vulnerable code in vhost_crypto.c to not be included.
This flaw does not affect Red Hat Ceph Storage 3 and 4 as dpdk (embedded in ceph source rpm) is not built in the packages, therefore the vulnerable code is not available in the resulting RPM and the issue cannot be exploited.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 7.8CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
CWE-367 · Time-of-check Time-of-use (TOCTOU) Race Condition