CVE-2023-1544

Description

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.

CVSS Metrics

• v3.1•MEDIUM•Score: 6CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H
• v3.1•MEDIUM•Score: 6.3CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:N/I:N/A:H

EPSS Trends

Current EPSS score: 0.06%• Percentile: 19%

Techniques & Countermeasures

• CWE-770•Allocation of Resources Without Limits or Throttling

  The product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the size or number of resources that can be allocated.

• CWE-125•Out-of-bounds Read

  The product reads data past the end, or before the beginning, of the intended buffer.

Affected Systems

• fedoraproject•fedora

  37

• qemu•qemu

  ≤ 7.2.0

References (5)

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