PT-2024-1924 · Qemu+9 · Qemu+9
Published
2024-02-14
·
Updated
2025-12-18
·
CVE-2024-26327
CVSS v3.1
5.3
Medium
| Vector | AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
QEMU versions 7.1.0 through 8.2.1
Description
The issue is related to a buffer overflow in the
register vfs() function in hw/pci/pcie sriov.c of the QEMU hardware emulator. This occurs when a guest writes NumVFs greater than TotalVFs, leading to a buffer overflow in VF implementations. Exploitation of this issue may allow an attacker to cause a denial of service.Recommendations
For QEMU versions 7.1.0 through 8.2.1, consider disabling the
register vfs() function in hw/pci/pcie sriov.c as a temporary workaround until a patch is available. Restrict access to the vulnerable pcie sriov.c module to minimize the risk of exploitation. Avoid using the NumVFs and TotalVFs variables in the affected register vfs() function until the issue is resolved. At the moment, there is no information about a newer version that contains a fix for this vulnerability.Exploit
Memory Corruption
Buffer Overflow
Heap Based Buffer Overflow
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Related Identifiers
Affected Products
Alt Linux
Almalinux
Astra Linux
Linuxmint
Qemu
Red Hat
Red Os
Rocky Linux
Suse
Ubuntu