CVE-2023-5088
Publication date 3 November 2023
Last updated 24 July 2024
Ubuntu priority
Cvss 3 Severity Score
A bug in QEMU could cause a guest I/O operation otherwise addressed to an arbitrary disk offset to be targeted to offset 0 instead (potentially overwriting the VM's boot code). This could be used, for example, by L2 guests with a virtual disk (vdiskL2) stored on a virtual disk of an L1 (vdiskL1) hypervisor to read and/or write data to LBA 0 of vdiskL1, potentially gaining control of L1 at its next reboot.
Status
Package | Ubuntu Release | Status |
---|---|---|
qemu | 24.04 LTS noble |
Fixed 1:8.1.3+ds-1ubuntu1
|
22.04 LTS jammy |
Fixed 1:6.2+dfsg-2ubuntu6.16
|
|
20.04 LTS focal |
Fixed 1:4.2-3ubuntu6.28
|
|
18.04 LTS bionic |
Needs evaluation
|
|
16.04 LTS xenial |
Needs evaluation
|
|
14.04 LTS trusty |
Needs evaluation
|
Severity score breakdown
Parameter | Value |
---|---|
Base score | 7.0 · High |
Attack vector | Local |
Attack complexity | High |
Privileges required | Low |
User interaction | None |
Scope | Unchanged |
Confidentiality | High |
Integrity impact | High |
Availability impact | High |
Vector | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |
References
Related Ubuntu Security Notices (USN)
- USN-6567-1
- QEMU vulnerabilities
- 8 January 2024