CVE-2023-5088
Published: 3 November 2023
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.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
qemu Launchpad, Ubuntu, Debian |
bionic |
Needs triage
|
| focal |
Released
(1:4.2-3ubuntu6.28)
|
|
| jammy |
Released
(1:6.2+dfsg-2ubuntu6.16)
|
|
| lunar |
Released
(1:7.2+dfsg-5ubuntu2.4)
|
|
| mantic |
Released
(1:8.0.4+dfsg-1ubuntu3.23.10.2)
|
|
| noble |
Released
(1:8.1.3+ds-1ubuntu1)
|
|
| trusty |
Needs triage
|
|
| upstream |
Needs triage
|
|
| xenial |
Needs triage
|
|
|
Patches: upstream: https://gitlab.com/qemu-project/qemu/-/commit/7d7512019fc40c577e2bdd61f114f31a9eb84a8e |
||
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.0 |
| 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 |