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.
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. This can cause the product to perform invalid actions when the resource is in an unexpected state.
| Link | Tags |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=1879468 | issue tracking |
| https://www.openwall.com/lists/oss-security/2020/09/28/3 | mailing list third party advisory patch |
| https://usn.ubuntu.com/4550-1/ | third party advisory vendor advisory |
| http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00004.html | third party advisory vendor advisory |
| http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00006.html | third party advisory vendor advisory |
| http://www.openwall.com/lists/oss-security/2021/01/04/5 | mailing list |
| http://www.openwall.com/lists/oss-security/2021/01/04/1 | mailing list |
| http://www.openwall.com/lists/oss-security/2021/01/04/2 | mailing list |