#VU47309 Permissions, Privileges, and Access Controls in DPDK - CVE-2020-14375

Vulnerability identifier: #VU47309

Vulnerability risk: Medium

CVSSv4.0: 6.1 [CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2020-14375

CWE-ID: CWE-264

Exploitation vector: Local network

Exploit availability: No

Vulnerable software:
DPDK
Server applications / Frameworks for developing and running applications

Vendor: DPDK Project

Description

The vulnerability allows a remote user to compromise the host OS.

The vulnerability exists due to 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 with access to the guest OS can change the contents of the memory after vhost_crypto has validated it and execute arbitrary code on the host OS.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

DPDK: 18.02 - 18.11.9, 19.02 - 19.11.4

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External links
https://lists.opensuse.org/opensuse-security-announce/2020-10/msg00004.html
https://lists.opensuse.org/opensuse-security-announce/2020-10/msg00006.html
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

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the local network (LAN).

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.