Qemu before 1.6.2 block diver for the various disk image formats used by Bochs and for the QCOW version 2 format, are vulnerable to a possible crash caused by signed data types or a logic error while creating QCOW2 snapshots, which leads to incorrectly calling update_refcount() routine.
CVE Status: Modified
Attribute | Value |
---|---|
Attack Complexity | LOW |
Attack Vector | LOCAL |
Availability Impact | HIGH |
Base Score | 6.2 |
Base Severity | MEDIUM |
Confidentiality Impact | NONE |
Integrity Impact | NONE |
Privileges Required | NONE |
Scope | UNCHANGED |
User Interaction | NONE |
Vector String | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Exploitability Score | 2.5 |
Impact Score | 3.6 |
Source | [email protected] |
Type | Primary |