3.3
Faible
CVE-2025-8860 A flaw was found in QEMU in the uefi-vars virtual device
Description
A flaw was found in QEMU in the uefi-vars virtual device. When the guest writes to register UEFI_VARS_REG_BUFFER_SIZE, the .write callback `uefi_vars_write` is invoked. The function allocates a heap buffer without zeroing the memory, leaving the buffer filled with residual data from prior allocations. When the guest later reads from register UEFI_VARS_REG_PIO_BUFFER_TRANSFER, the .read callback `uefi_vars_read` returns leftover metadata or other sensitive process memory from the previously allocated buffer, leading to an information disclosure vulnerability.
Produits et versions touchés
| Produit | Versions touchées | Corrigé en |
|---|---|---|
| Red Hat Enterprise Linux 10 | 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 8 Advanced Virtualization | Versions non publiées | |
| Red Hat Enterprise Linux 9 | Versions non publiées | |
| Red Hat OpenShift Container Platform 4 | Versions non publiées |
Références
- access.redhat.com access.redhat.com
- RHBZ#2387588 bugzilla.redhat.com
Chronologie
- Publiée
- Dernière modification
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