CVE-2014-0148
Description
From CVE.org
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.
Statement
This issue does not affect the versions of kvm package as shipped with Red Hat Enterprise Linux 5.
This issue affects the versions of qemu-kvm package as shipped with Red Hat Enterprise Linux 6.
Common Vulnerability Scoring System (CVSS) Score Details
Info alert:Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
CVSS v2 Score Breakdown
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Base Score | 4.7 | N/A | N/A |
| Attack Vector | Local | N/A | N/A |
| Access Complexity | Medium | N/A | N/A |
| Authentication | None | N/A | N/A |
| Confidentiality Impact | None | N/A | N/A |
| Integrity Impact | None | N/A | N/A |
| Availability Impact | Complete | N/A | N/A |
Vector
Red Hat: AV:L/AC:M/Au:N/C:N/I:N/A:C
Acknowledgements
This issue was discovered by Jeff Cody (Red Hat Inc).
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