CVE-2024-6505 Qemu-kvm: virtio-net: queue index out-of-bounds access in software rss
A privileged guest user can crash the host QEMU process via an out-of-bounds access in virtio-net RSS, requiring the RSS feature to be enabled.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2024-6505?
CVE-2024-6505 is a medium-severity memory corruption vulnerability in Qemu Qemu, published on 5 Jul 2024. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
A flaw was found in the virtio-net device in QEMU. When enabling the RSS feature on the virtio-net network card, the indirections_table data within RSS becomes controllable. Setting excessively large values may cause an index out-of-bounds issue, potentially resulting in heap overflow access. This flaw allows a privileged user in the guest to crash the QEMU process on the host.
Weakness: CWE-125
Which versions are affected by CVE-2024-6505?
It affects 2 products.
Products include Qemu Qemu, Redhat Enterprise Linux.
How do I fix CVE-2024-6505?
Apply the vendor's patch.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2024-6505 being exploited?
There is no known exploitation of CVE-2024-6505 in the wild and no public exploit code.
Other vulnerabilities in Qemu Qemu
Sources
Also known as AZL-60070, AZL-60925, DEBIAN-CVE-2024-6505, GHSA-3qx7-ff8p-6j2r, OESA-2024-2199, OESA-2024-2200 and 3 more.