Vulnerability · Published Jun 2, 2021 · Assigned by redhat
CVE-2021-3545
Medium 6.5
In plain English
A medium-severity security flaw in QEMU. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 37% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)6.5Medium
Exploit odds (30 days)0.4%top 63.3% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.20 | qemu | 6.1.0-r0 | ALPINE-CVE-2021-3545 |
| Alpine:v3.21 | qemu | 6.1.0-r0 | ALPINE-CVE-2021-3545 |
| Alpine:v3.22 | qemu | 6.1.0-r0 | ALPINE-CVE-2021-3545 |
| Alpine:v3.23 | qemu | 6.1.0-r0 | ALPINE-CVE-2021-3545 |
| Alpine:v3.24 | qemu | 6.1.0-r0 | ALPINE-CVE-2021-3545 |
| Debian:12 | qemu | 1:6.1+dfsg-1 | DEBIAN-CVE-2021-3545 |
| Debian:13 | qemu | 1:6.1+dfsg-1 | DEBIAN-CVE-2021-3545 |
| Debian:14 | qemu | 1:6.1+dfsg-1 | DEBIAN-CVE-2021-3545 |
| Ubuntu:22.04:LTS | qemu | 1:6.2+dfsg-2ubuntu5 | UBUNTU-CVE-2021-3545 |
Affected products (as reported)
Weakness: CWE-908
References
- [oss-security] 20210531 QEMU: security issues in vhost-user-gpu mailing-list, x_refsource_MLIST
- https://bugzilla.redhat.com/show_bug.cgi?id=1958955 x_refsource_MISC
- https://security.netapp.com/advisory/ntap-20210720-0008/ x_refsource_CONFIRM
- DSA-4980 vendor-advisory, x_refsource_DEBIAN
- GLSA-202208-27 vendor-advisory, x_refsource_GENTOO