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.
Weakness
The product checks the state of a resource before using that resource, but the resource’s state can change between the check and the use in a way that invalidates the results of the check.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Data_plane_development_kit | Dpdk | 18.02.1 (including) | 18.11.10 (excluding) |
| Data_plane_development_kit | Dpdk | 19.02 (including) | 19.11.5 (excluding) |
| Dpdk | Ubuntu | devel | * |
| Dpdk | Ubuntu | esm-infra/focal | * |
| Dpdk | Ubuntu | focal | * |
| Dpdk | Ubuntu | trusty | * |
Potential Mitigations
Related Attack Patterns
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=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
- 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