Description
Qemu before 2.0 block driver for Hyper-V VHDX Images is vulnerable to infinite loops and other potential issues when calculating BAT entries, due to missing bounds checks for block_size and logical_sector_size variables. These are used to derive other fields like 'sectors_per_block' etc. A user able to alter the Qemu disk image could ise this flaw to crash the Qemu instance resulting in DoS.
CVSS Metrics
- Vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Attack Vector
- local
- Complexity
- low
- Privileges
- low
- User Action
- none
- Scope
- unchanged
- Confidentiality
- none
- Integrity
- none
- Availability
- high
- Weaknesses
- CWE-835
Metadata
- Primary Vendor
- QEMU
- Published
- 9/29/2022
- Last Modified
- 11/21/2024
- Source
- NIST NVD
- Note: Verify all details with official vendor sources before applying patches.
Affected Products
qemu : qemuredhat : virtualizationredhat : enterprise_linux_desktopredhat : enterprise_linux_eusredhat : enterprise_linux_openstack_platformredhat : enterprise_linux_serverredhat : enterprise_linux_server_ausredhat : enterprise_linux_server_tusredhat : enterprise_linux_workstation
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