CVE-2020-10761
Published: 09 June 2020
An assertion failure issue was found in the Network Block Device(NBD) Server in all QEMU versions before QEMU 5.0.1. This flaw occurs when an nbd-client sends a spec-compliant request that is near the boundary of maximum permitted request length. A remote nbd-client could use this flaw to crash the qemu-nbd server resulting in a denial of service.
Priority
Medium
CVSS 3 base score: 5.0
Status
| Package | Release | Status |
|---|---|---|
|
qemu Launchpad, Ubuntu, Debian |
Upstream |
Needs triage
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Released
(1:4.2-3ubuntu6.4)
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Not vulnerable
(code not present)
|
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Not vulnerable
(code not present)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Not vulnerable
(code not present)
|
|
|
Patches: Upstream: https://git.qemu.org/?p=qemu.git;a=commit;h=5c4fe018c025740fef4a0a4421e8162db0c3eefd |
||
|
qemu-kvm Launchpad, Ubuntu, Debian |
Upstream |
Needs triage
|
| 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
|
|
Notes
| Author | Note |
|---|---|
| mdeslaur | introduced in qemu 4.2 |
References
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-10761
- https://www.openwall.com/lists/oss-security/2020/06/09/1
- https://lists.gnu.org/archive/html/qemu-devel/2020-06/msg02031.html
- https://ubuntu.com/security/notices/USN-4467-1
- NVD
- Launchpad
- Debian