Vulnerability in Qemu
CVE-2021-3545
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.
EPSS: 0.004 (34.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N.
Affected products
- Qemu
- Debian Debian_linux — versions 11.0
- N/a Qemu — versions All QEMU versions up to and including 6.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- secalert@redhat.com (mailing-list, x_refsource_MLIST, Mailing List, Third Party Advisory)
- secalert@redhat.com (Third Party Advisory, x_refsource_MISC, Issue Tracking)
- secalert@redhat.com (x_refsource_CONFIRM, Third Party Advisory)
- secalert@redhat.com (vendor-advisory, Third Party Advisory, x_refsource_DEBIAN)
- secalert@redhat.com (vendor-advisory, Third Party Advisory, x_refsource_GENTOO)
Frequently asked questions
- What is CVE-2021-3545?
- CVE-2021-3545 is a medium-severity vulnerability in Qemu, classified under Use of Uninitialized Resource. CVSS score: 6.5/10. Published 2021-06-02.
- How severe is CVE-2021-3545?
- Medium severity. CVSS v3 base score is 6.5 out of 10.
- Is CVE-2021-3545 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.