CVE-2021-3839

Description

A flaw was found in the vhost library in DPDK. Function vhost_user_set_inflight_fd() does not validate `msg->payload.inflight.num_queues`, possibly causing out-of-bounds memory read/write. Any software using DPDK vhost library may crash as a result of this vulnerability.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.09%
Third-Party Advisory redhat.com Third-Party Advisory redhat.com Third-Party Advisory github.com
Affected: n/a dpdk
Published at:
Updated at:

References

Link Tags
https://bugzilla.redhat.com/show_bug.cgi?id=2025882 issue tracking third party advisory patch
https://access.redhat.com/security/cve/CVE-2021-3839 third party advisory
https://github.com/DPDK/dpdk/commit/6442c329b9d2ded0f44b27d2016aaba8ba5844c5 third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2021-3839?
CVE-2021-3839 has been scored as a high severity vulnerability.
How to fix CVE-2021-3839?
To fix CVE-2021-3839, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-3839 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-3839 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-3839?
CVE-2021-3839 affects n/a dpdk.
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