CVE-2023-1544: Qemu: pvrdma: out-of-bounds read in pvrdma_ring_next_elem_read()

Severity: medium (CVSS 6.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-03-23 · updated 2026-06-17
Weakness: CWE-125

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 products

Fedoraproject Fedora: 37
QEMU: through 7.2.0

References

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

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