CVE-2024-4693: Qemu-kvm: virtio-pci: improper release of configure vector leads to guest triggerable crash
First published: Fri May 10 2024(Updated: )
A flaw was found in QEMU in the Virtio PCI Bindings (hw/virtio/virtio-pci.c). An improper release and use of the irqfd for vector 0 during the boot process leads to a guest triggerable crash via vhost_net_stop(). The original patch [1] was found to be incomplete and is currently being reworked upstream [2][3]. [1] <a href="https://gitlab.com/qemu-project/qemu/-/commit/fcbb086ae590e910614fe5b8bf76e264f71ef304">https://gitlab.com/qemu-project/qemu/-/commit/fcbb086ae590e910614fe5b8bf76e264f71ef304</a> [2] <a href="https://gitlab.com/qemu-project/qemu/-/issues/2321">https://gitlab.com/qemu-project/qemu/-/issues/2321</a> [3] <a href="https://gitlab.com/qemu-project/qemu/-/issues/2334">https://gitlab.com/qemu-project/qemu/-/issues/2334</a>
Credit: secalert@redhat.com secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/qemu | 1:5.2+dfsg-11+deb11u3 1:5.2+dfsg-11+deb11u2 1:7.2+dfsg-7+deb12u7 1:9.2.0+ds-2 |
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Reference Links
- https://gitlab.com/qemu-project/qemu/-/commit/fcbb086ae590e910614fe5b8bf76e264f71ef304
- https://gitlab.com/qemu-project/qemu/-/issues/2321
- https://gitlab.com/qemu-project/qemu/-/issues/2334
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2279966
- https://gitlab.com/qemu-project/qemu/-/commit/7eeb62b0ce3a8f64647bf53f93903abd1fbb0b94
- https://bugzilla.redhat.com/show_bug.cgi?id=2279965
- https://access.redhat.com/security/cve/CVE-2024-4693
- https://launchpad.net/bugs/cve/CVE-2024-4693
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-4693
- https://nvd.nist.gov/vuln/detail/CVE-2024-4693
- https://security-tracker.debian.org/tracker/CVE-2024-4693
- https://ubuntu.com/security/CVE-2024-4693
- https://gitlab.com/qemu-project/qemu/-/commit/f9a09ca3ea69d108d828b7c82f1bd61b2df6fc96
- https://security.netapp.com/advisory/ntap-20240828-0007/
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