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CVE-2020-27821 A flaw was found in the memory management API of QEMU during the initialization of a memory region cache
Description
A flaw was found in the memory management API of QEMU during the initialization of a memory region cache. This issue could lead to an out-of-bounds write access to the MSI-X table while performing MMIO operations. A guest user may abuse this flaw to crash the QEMU process on the host, resulting in a denial of service. This flaw affects QEMU versions prior to 5.2.0.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| QEMU | Versions not published |
References
- bugzilla.redhat.com bugzilla.redhat.com
- [oss-security] 20201216 CVE-2020-27821 QEMU: heap buffer overflow in msix_table_mmio_write() in hw/pci/msix.c www.openwall.com
- security.netapp.com security.netapp.com
- [debian-lts-announce] 20220905 [SECURITY] [DLA 3099-1] qemu security update lists.debian.org
Timeline
- Published
- Last modified
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