Vulnerability · Published Mar 23, 2023 · Assigned by fedora
CVE-2023-1544Qemu: pvrdma: out-of-bounds read in pvrdma_ring_next_elem_read()
Medium 6.0
In plain English
A medium-severity out-of-bounds read in qemu. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 24% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)6.0Medium
Exploit odds (30 days)0.3%top 76.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | qemu | 1:7.2+dfsg-7+deb12u3 | DEBIAN-CVE-2023-1544 |
| Debian:13 | qemu | 1:8.2.0+ds-1 | DEBIAN-CVE-2023-1544 |
| Debian:14 | qemu | 1:8.2.0+ds-1 | DEBIAN-CVE-2023-1544 |
| Ubuntu:22.04:LTS | qemu | 1:6.2+dfsg-2ubuntu6.16 | USN-6567-1 |
| Ubuntu:22.04:LTS | qemu | 1:6.2+dfsg-2ubuntu6.16 | UBUNTU-CVE-2023-1544 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| qemu | see references |
Weakness: CWE-125 · Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H
References
- https://access.redhat.com/security/cve/CVE-2023-1544 vdb-entry, x_refsource_REDHAT
- 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