Loop with Unreachable Exit Condition ('Infinite Loop') Affecting qemu-kvm package, versions <2:0.12.1.2-2.415.el6_5.8


Severity

Recommended
0.0
medium
0
10

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.05% (16th percentile)

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  • Snyk IDSNYK-ORACLE6-QEMUKVM-2479575
  • published10 Apr 2022
  • disclosed29 Sept 2022

Introduced: 10 Apr 2022

CVE-2014-0148  (opens in a new tab)
CWE-835  (opens in a new tab)

How to fix?

Upgrade Oracle:6 qemu-kvm to version 2:0.12.1.2-2.415.el6_5.8 or higher.
This issue was patched in ELSA-2014-0420.

NVD Description

Note: Versions mentioned in the description apply only to the upstream qemu-kvm package and not the qemu-kvm package as distributed by Oracle. See How to fix? for Oracle:6 relevant fixed versions and status.

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 Scores

version 3.1