CVE-2020-25723
Published: 18 November 2020
A reachable assertion issue was found in the USB EHCI emulation code of QEMU. It could occur while processing USB requests due to missing handling of DMA memory map failure. A malicious privileged user within the guest may abuse this flaw to send bogus USB requests and crash the QEMU process on the host, resulting in a denial of service.
Priority
Medium
CVSS 3 base score: 3.2
Status
| Package | Release | Status |
|---|---|---|
|
qemu Launchpad, Ubuntu, Debian |
Upstream |
Released
(1:5.2+dfsg-1)
|
| Ubuntu 21.04 (Hirsute Hippo) |
Released
(1:5.2+dfsg-2ubuntu1)
|
|
| Ubuntu 20.10 (Groovy Gorilla) |
Released
(1:5.0-5ubuntu9.2)
|
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Released
(1:4.2-3ubuntu6.10)
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Released
(1:2.11+dfsg-1ubuntu7.34)
|
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Released
(1:2.5+dfsg-5ubuntu10.48)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Needs triage
|
|
|
Patches: Upstream: https://git.qemu.org/?p=qemu.git;a=commit;h=2fdb42d840400d58f2e706ecca82c142b97bcbd6 |
||
|
qemu-kvm Launchpad, Ubuntu, Debian |
Upstream |
Needs triage
|
| Ubuntu 21.04 (Hirsute Hippo) |
Does not exist
|
|
| Ubuntu 20.10 (Groovy Gorilla) |
Does not exist
|
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Does not exist
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Does not exist
|
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|