CVE-2023-6693
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- CVE-2023-6693
CVE Details
| Release Date: | 2024-01-02 |
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.
See more information about CVE-2023-6693 from MITRE CVE dictionary and NIST NVD
CVSS v3.0 metrics
NOTE: The following CVSS v3.0 metrics and score provided are preliminary and subject to review.
| Base Score: | 4.9 | Base Metrics: | AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L |
| Access Vector: | Local network | Attack Complexity: | High |
| Privileges Required: | None | User Interaction: | None |
| Scope: | Unchanged | Confidentiality Impact: | Low |
| Integrity Impact: | Low | Availability Impact: | Low |
Errata information
| Platform | Errata | Release Date |
| Oracle Linux version 8 (hivex) | ELSA-2024-12276 | 2024-04-10 |
| Oracle Linux version 8 (libguestfs) | ELSA-2024-12276 | 2024-04-10 |
| Oracle Linux version 8 (libguestfs-winsupport) | ELSA-2024-12276 | 2024-04-10 |
| Oracle Linux version 8 (libiscsi) | ELSA-2024-12276 | 2024-04-10 |
| Oracle Linux version 8 (libnbd) | ELSA-2024-12276 | 2024-04-10 |
| Oracle Linux version 8 (libtpms) | ELSA-2024-12276 | 2024-04-10 |
| Oracle Linux version 8 (libvirt) | ELSA-2024-12276 | 2024-04-10 |
| Oracle Linux version 8 (libvirt-dbus) | ELSA-2024-12276 | 2024-04-10 |
| Oracle Linux version 8 (libvirt-python) | ELSA-2024-12276 | 2024-04-10 |
| Oracle Linux version 8 (nbdkit) | ELSA-2024-12276 | 2024-04-10 |
| Oracle Linux version 8 (netcf) | ELSA-2024-12276 | 2024-04-10 |
| Oracle Linux version 8 (perl-Sys-Virt) | ELSA-2024-12276 | 2024-04-10 |
| Oracle Linux version 8 (qemu-kvm) | ELSA-2024-12276 | 2024-04-10 |
| Oracle Linux version 8 (seabios) | ELSA-2024-12276 | 2024-04-10 |
| Oracle Linux version 8 (sgabios) | ELSA-2024-12276 | 2024-04-10 |
| Oracle Linux version 8 (supermin) | ELSA-2024-12276 | 2024-04-10 |
| Oracle Linux version 8 (swtpm) | ELSA-2024-12276 | 2024-04-10 |
| Oracle Linux version 8 (virt-v2v) | ELSA-2024-12276 | 2024-04-10 |
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