CVE-2023-1544

MEDIUM 6.0

Qemu: pvrdma: out-of-bounds read in pvrdma_ring_next_elem_read()

CVSS Score

6.0

EPSS Score

0.0%

EPSS Percentile

0th

A flaw was found in the QEMU implementation of VMWare's paravirtual RDMA device. This flaw allows a crafted guest driver to allocate and initialize a huge number of page tables to be used as a ring of descriptors for CQ and async events, potentially leading to an out-of-bounds read and crash of QEMU.

CWE	CWE-125
Published	Mar 23, 2023
Last Updated	Nov 3, 2025

Stay Ahead of the Next One

Get instant alerts for

Be the first to know when new medium vulnerabilities are published — delivered to Slack, Telegram or Discord.

Get Free Alerts → Free · No credit card · 60 sec setup

CVSS v3 Breakdown

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H

Attack Vector

Local

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Changed

Confidentiality

None

Integrity

None

Availability

High

References

NVD ↗ CVE.org ↗ EPSS Data ↗

access.redhat.com: https://access.redhat.com/security/cve/CVE-2023-1544 bugzilla.redhat.com: https://bugzilla.redhat.com/show_bug.cgi?id=2180364 lists.nongnu.org: https://lists.nongnu.org/archive/html/qemu-devel/2023-03/msg00206.html security.netapp.com: https://security.netapp.com/advisory/ntap-20230511-0005/ lists.debian.org: https://lists.debian.org/debian-lts-announce/2025/04/msg00042.html

Credits

Red Hat would like to thank SorryMybad (Kunlun Lab) for reporting this issue.