A flaw was found in dpdk in versions before 18.11.10 and before 19.11.5. 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.

References

• https://nvd.nist.gov/vuln/detail/CVE-2020-14375
• https://bugzilla.redhat.com/show_bug.cgi?id=1879468
• 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
• http://www.openwall.com/lists/oss-security/2021/01/04/5