Description
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.
Details
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
Affected Packages
| Software | From version | Fixed in |
|---|---|---|
| enterprise-linux | — | — |
| fedora | — | — |
| qemu | — | 8.2.1 |
References
Similar Threats
- Medium CVE-2022-0851
- High CVE-2022-0358
- Medium CVE-2022-0480
- Medium CVE-2022-0485
- Medium CVE-2022-0852
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