Home/CVE/A flaw was found in the vhost library in DPDK. Function vhost_user_set_inflight_fd() does not validate `msg-payload.infl
CVE

CVE-2021-3839

A flaw was found in the vhost library in DPDK. Function vhost_user_set_inflight_fd() does not validate `msg-payload.infl

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.

HIGH · CVSS 7.5 EPSS 0.00592
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-125Out-of-bounds Read
CWE-125Out-of-bounds Read
CWE-787Out-of-bounds Write
▤

Affected Products & Versions

5
dpdk data plane development kit< 22.03
dpdk data plane development kitall versions
fedoraproject fedoraall versions
redhat enterprise linuxall versions
redhat enterprise linux fast datapathall versions
▣

Scoring & Timeline

7.5
HIGH · CVSS v3.1 · secalert@redhat.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD23 Aug 2022 · 04:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
⚑

Vendor Advisories

7
rhsaRHSA-2022:8263Moderate
suse-csafSUSE-SU-2022:2273-1
suse-csafSUSE-SU-2022:1892-1
usnUSN-5401-1
rhsaRHSA-2022:4786Moderate
🔗

References & Sources

3
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://access.redhat.com/security/cve/CVE-2021-3839Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2025882Issue TrackingPatchThird Party Advisory
https://github.com/DPDK/dpdk/commit/6442c329b9d2ded0f44b27d2016aaba8ba5844c5PatchThird Party Advisory
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