Description (CNA)
A flaw was found in QEMU's virtio-blk device. The issue arises because the device does not properly validate the size of input descriptors before writing data. A malicious guest with high privileges could exploit this vulnerability by submitting a malformed virtio-blk SCSI request, leading to an out-of-bounds write in the host heap memory and a potential denial of service (DoS) for the QEMU process.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Not supplied / Not supplied | affected 1.1.0 through 11.0.1 |
| Red Hat / Red Hat Enterprise Linux 10 | unaffected 18:10.1.0-16.el10_2.5 before * |
| Red Hat / Red Hat Enterprise Linux 9 | unaffected 17:10.1.0-17.el9_8.4 before * |
| Red Hat / Red Hat Enterprise Linux 6 | unknown |
| Red Hat / Red Hat Enterprise Linux 7 | unknown |
| Red Hat / Red Hat Enterprise Linux 7 | unknown |
| Red Hat / Red Hat Enterprise Linux 8 | affected |
| Red Hat / Red Hat Enterprise Linux for NVIDIA 26 | affected |
| Red Hat / Red Hat OpenShift Container Platform 4 | affected |
| Red Hat / Red Hat OpenShift Container Platform 4 | affected |
CWE
CWE-122
References
- https://access.redhat.com/errata/RHSA-2026:39311
- https://access.redhat.com/errata/RHSA-2026:58571
- https://access.redhat.com/security/cve/CVE-2026-48914
- https://bugzilla.redhat.com/show_bug.cgi?id=2488283
- https://lore.kernel.org/qemu-devel/20260526154957.1741622-1-stefanha@redhat.com/
ADP enrichment
No English description supplied.
No references supplied.