CVE-2023-1544

MEDIUM6.0

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

Published Mar 23, 2023

Modified 2 months ago

Details

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.

References

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

CVSS Analysis

CVSS v3.1

6.0

Exploitability

Attack Vector

LocalAV:L

Attack Complexity

LowAC:L

Privileges Required

HighPR:H

User Interaction

NoneUI:N

Scope

ChangedS:C

Impact

Confidentiality

NoneC:N

Integrity

NoneI:N

Availability

HighA:H

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

Weakness Type (CWE)

Memory Safety

CWE-125

Out-of-bounds Read

Ecosystems

Timeline

PublishedMar 23, 2023

ModifiedNov 3, 2025