CVE-2023-6693
A stack based buffer overflow was found in the virtio-net device of QEMU. This issue occurs when flushing TX in the virt
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.
MEDIUM · CVSS 4.9
EPSS 0.00025
Monitor
- No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules1
YARA rules0