CVE-2014-0134: OpenStack Nova host data leak to vm instance in rescue mode
3.1
CVSS Score
3.1
Basic Information
CVE ID
GHSA ID
EPSS Score
0.42645%
CWE
Published
5/17/2022
Updated
11/26/2024
KEV Status
No
Technology
Python
Technical Details
CVSS Vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
Package Name | Ecosystem | Vulnerable Versions | First Patched Version |
---|---|---|---|
nova | pip | < 12.0.0a0 | 12.0.0a0 |
Vulnerability Intelligence
Miggo AI
Root Cause Analysis
The vulnerability stemmed from Nova's reliance on 'qemu-img info' to autodetect disk formats during rescue mode. The unpatched correct_format
method in the Raw backend (and implicit assumptions in Qcow2 initialization) allowed attackers to spoof the format via crafted images. The fix introduced disk.info
to store the format persistently, replacing unsafe autodetection. The functions handling format detection before this persistence mechanism were the root cause.