VDB
DEBIAN-CVE-2023-6693
DEBIAN-CVE-2023-6693
PUBLISHED
CVSS 5.300000190734863 MEDIUM
A stack based buffer overflow was found in the virtio-net device of QEMU. This issue occurs when flushing TX in the virtio_net_flush_tx function if guest features VIRTIO_NET_F_HASH_REPORT, VIRTIO_F_VERSION_1 and VIRTIO_NET_F_MRG_RXBUF are enabled. This could allow a malicious user to overwrite local variables allocated on the stack. Specifically, the `out_sg` variable could be used to read a part of process memory and send it to the wire, causing an information leak.
Risk Scores
CVSS v3.1
5.300000190734863
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Debian:13 | qemu | 0, 0, 0 |
| Debian:11 | qemu | 1:5.2+dfsg-11, 1:5.2+dfsg-11+deb11u2, * |
| Debian:12 | qemu | 0, 1:7.2+dfsg-7, 1:7.2+dfsg-7+deb12u1 |
| Debian:14 | qemu | 0, 0, 0 |
Timeline
- Jan 2, 2024 CVE Published
- Apr 28, 2026 CVE Updated