CVE-2017-15119
Published: 28 November 2017
The Network Block Device (NBD) server in Quick Emulator (QEMU) before 2.11 is vulnerable to a denial of service issue. It could occur if a client sent large option requests, making the server waste CPU time on reading up to 4GB per request. A client could use this flaw to keep the NBD server from serving other requests, resulting in DoS.
Notes
Author | Note |
---|---|
mdeslaur |
trusty already has a length check there |
Priority
Status
Package | Release | Status |
---|---|---|
qemu
Launchpad, Ubuntu, Debian |
artful |
Released
(1:2.10+dfsg-0ubuntu3.5)
|
trusty |
Not vulnerable
|
|
upstream |
Released
(2.11)
|
|
xenial |
Released
(1:2.5+dfsg-5ubuntu10.22)
|
|
zesty |
Ignored
(end of life)
|
|
Patches:
upstream: https://git.qemu.org/?p=qemu.git;a=commit;h=fdad35ef6c5839d50dfc14073364ac893afebc30 |
||
qemu-kvm
Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
trusty |
Does not exist
|
|
upstream |
Needs triage
|
|
xenial |
Does not exist
|
|
zesty |
Does not exist
|
Severity score breakdown
Parameter | Value |
---|---|
Base score | 8.6 |
Attack vector | Network |
Attack complexity | Low |
Privileges required | None |
User interaction | None |
Scope | Changed |
Confidentiality | None |
Integrity impact | None |
Availability impact | High |
Vector | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H |