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CVE-2018-20124

QEMU: rdma: OOB access when building scatter-gather array

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Severity

Moderate

Red Hat Product Security

5

CVSS 3.0

Review impact separately from score.

Published · December 11, 2018

Updated · June 27, 2026

Description

hw/rdma/rdma_backend.c in QEMU allows guest OS users to trigger out-of-bounds access via a PvrdmaSqWqe ring element with a large num_sge value.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.0 · 5
CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:L

CWE-787 · Out-of-bounds Write