CVE-2021-3545 Information disclosure in QEMU

What is CVE-2021-3545?

CVE-2021-3545 is a medium-severity vulnerability in Debian Debian Linux, published on 2 Jun 2021. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

An information disclosure vulnerability was found in the virtio vhost-user GPU device (vhost-user-gpu) of QEMU in versions up to and including 6.0. The flaw exists in virgl_cmd_get_capset_info() in contrib/vhost-user-gpu/virgl.c and could occur due to the read of uninitialized memory. A malicious guest could exploit this issue to leak memory from the host.

Weakness: CWE-908

Which versions are affected by CVE-2021-3545?

It affects 2 products.

Products include Debian Debian Linux, Qemu Qemu.

How do I fix CVE-2021-3545?

Upgrade to a fixed version.

Is CVE-2021-3545 being exploited?

There is no known exploitation of CVE-2021-3545 in the wild and no public exploit code.

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All Debian Debian Linux vulnerabilities

Sources

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

Also known as DEBIAN-CVE-2021-3545, GHSA-gx4q-vxgq-4299, UBUNTU-CVE-2021-3545.