5.3
Moyenne
CVE-2023-4155 A flaw was found in KVM AMD Secure Encrypted Virtualization (SEV) in the Linux kernel
Description
A flaw was found in KVM AMD Secure Encrypted Virtualization (SEV) in the Linux kernel. A KVM guest using SEV-ES or SEV-SNP with multiple vCPUs can trigger a double fetch race condition vulnerability and invoke the `VMGEXIT` handler recursively. If an attacker manages to call the handler multiple times, they can trigger a stack overflow and cause a denial of service or potentially guest-to-host escape in kernel configurations without stack guard pages (`CONFIG_VMAP_STACK`).
Produits et versions touchés
| Produit | Versions touchées | Corrigé en |
|---|---|---|
| kernel | Versions non publiées | |
| Red Hat Enterprise Linux 6 | Versions non publiées | |
| Red Hat Enterprise Linux 7 | Versions non publiées | |
| Red Hat Enterprise Linux 8 | Versions non publiées | |
| Red Hat Enterprise Linux 9 | Versions non publiées | |
| Fedora | Versions non publiées |
Références
- access.redhat.com access.redhat.com
- RHBZ#2213802 bugzilla.redhat.com
Chronologie
- Publiée
- Dernière modification
Autres CVE de kernel
Les 279 CVE de kernel →
CVE-2024-1312
A use-after-free flaw was found in the Linux kernel's Memory Management subsystem when a user wins two races at the same…
5.1
Moyenne
CVE-2023-6200
A race condition was found in the Linux Kernel
7.5
Élevée
CVE-2023-6560
An out-of-bounds memory access flaw was found in the io_uring SQ/CQ rings functionality in the Linux kernel
5.5
Moyenne
CVE-2023-5972
A null pointer dereference flaw was found in the nft_inner.c functionality of netfilter in the Linux kernel
7.0
Élevée