CVE-2021-4206
Published: 29 April 2022
A flaw was found in the QXL display device emulation in QEMU. An integer overflow in the cursor_alloc() function can lead to the allocation of a small cursor object followed by a subsequent heap-based buffer overflow. This flaw allows a malicious privileged guest user to crash the QEMU process on the host or potentially execute arbitrary code within the context of the QEMU process.
Priority
Medium
CVSS 3 base score: 8.2
Status
| Package | Release | Status |
|---|---|---|
|
qemu Launchpad, Ubuntu, Debian |
bionic |
Released
(1:2.11+dfsg-1ubuntu7.40)
|
| focal |
Released
(1:4.2-3ubuntu6.23)
|
|
| impish |
Released
(1:6.0+dfsg-2expubuntu1.3)
|
|
| jammy |
Released
(1:6.2+dfsg-2ubuntu6.2)
|
|
| trusty |
Needs triage
|
|
| upstream |
Needs triage
|
|
| xenial |
Needs triage
|
|
|
Patches: upstream: https://git.qemu.org/?p=qemu.git;a=commit;h=fa892e9abb728e76afcf27323ab29c57fb0fe7aa |
||