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CVE-2021-3839

Date: August 23, 2022

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.

Severity Score

Related Resources (7)

https://github.com/DPDK/dpdk/commit/6442c329b9d2ded0f44b27d2016aaba8ba5844c5
https://nvd.nist.gov/vuln/detail/CVE-2021-3839
https://access.redhat.com/security/cve/CVE-2021-3839
https://security-tracker.debian.org/tracker/CVE-2021-3839
https://bugzilla.redhat.com/show_bug.cgi?id=2025882
https://people.canonical.com/~ubuntu-security/cve/CVE-2021-3839
https://www.mend.io/vulnerability-database/CVE-2021-3839

Severity Score

Weakness Type (CWE)

Out-of-bounds Read

CWE-125

Out-of-bounds Write

CWE-787

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

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