Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Red Hat / Red Hat Enterprise Linux 8 | unaffected 8100020240314161907.e155f54d before * |
| Red Hat / Red Hat Enterprise Linux 8 | unaffected 8100020240314161907.e155f54d before * |
| Red Hat / Red Hat Enterprise Linux 9 | unaffected 17:9.0.0-10.el9_5.3 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 Advanced Virtualization | affected |
CWE
CWE-121
References
- https://access.redhat.com/errata/RHSA-2024:2962
- https://access.redhat.com/errata/RHSA-2025:4492
- https://access.redhat.com/security/cve/CVE-2023-6693
- https://bugzilla.redhat.com/show_bug.cgi?id=2254580
ADP enrichment
No English description supplied.
- https://access.redhat.com/errata/RHSA-2024:2962
- https://access.redhat.com/security/cve/CVE-2023-6693
- https://bugzilla.redhat.com/show_bug.cgi?id=2254580
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OYGUN5HVOXESW7MSNM44E4AE2VNXQB6Y/
- https://security.netapp.com/advisory/ntap-20240208-0004/
- https://lists.debian.org/debian-lts-announce/2025/04/msg00042.html
No English description supplied.
No references supplied.