CVE-2017-15119
Published: July 27, 2018Last modified: November 9, 2023
Description
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.
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 |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | qemu | Not affected (7.1.0-r4) |
| Stream | qemu | Not affected (8.1.2-r0) |
References
- http://www.openwall.com/lists/oss-security/2017/11/28/9
- http://www.securityfocus.com/bid/102011
- https://access.redhat.com/errata/RHSA-2018:1104
- https://access.redhat.com/errata/RHSA-2018:1113
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-15119
- https://lists.gnu.org/archive/html/qemu-devel/2017-11/msg05044.html
- https://usn.ubuntu.com/3575-1/
- https://www.debian.org/security/2018/dsa-4213