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

What is CVE-2023-1544?

CVE-2023-1544 is a medium-severity denial of service vulnerability in Fedoraproject Fedora, published on 23 Mar 2023. It can only be exploited from the same machine or local network, with no action from the victim.

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.

Weakness: CWE-770, CWE-125

Which versions are affected by CVE-2023-1544?

It affects 2 products.

Products include Fedoraproject Fedora, Qemu Qemu.

How do I fix CVE-2023-1544?

Apply the vendor's patch.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2023-1544 being exploited?

There is no known exploitation of CVE-2023-1544 in the wild and no public exploit code.

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• CVE-2024-4947 Google Chromium V8 Type Confusion Exploited Critical 9.6
• CVE-2024-4671 Google Chromium Visuals Use-After-Free Exploited Critical 9.6

All Fedoraproject Fedora vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as AZL-25807, AZL-35166, BELL-CVE-2023-1544, DEBIAN-CVE-2023-1544, GHSA-8j56-863j-pww9, OESA-2023-1875 and 6 more.