Resource exhaustion in Qemu
CVE-2017-15119
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.
Vulnerability class: DoS (Denial of Service)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.8 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L.
EPSS exploit prediction
EPSS: 0.033 (88.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 88th percentile — 88.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.033 · newest: 0.033 · change: 0.000
Affected products
- Qemu — versions 2.11
- Canonical Ubuntu Linux — versions 14.04, 16.04, 17.10
- Debian Linux — versions 9.0
- Red Hat Virtualization — versions 4.0
Weakness classification (CWE)
References
- lists.gnu.org/archive/html/qemu-devel/2017-11/msg05044.html (Mailing List, Third Party Advisory)
- www.openwall.com/lists/oss-security/2017/11/28/9 (Patch, Mailing List, Third Party Advisory)
- www.securityfocus.com/bid/102011 (VDB Entry, Third Party Advisory, vdb-entry)
- www.debian.org/security/2018/dsa-4213 (vendor-advisory, Third Party Advisory)
- bugzilla.redhat.com/show_bug.cgi (Patch, Third Party Advisory, Issue Tracking)
- access.redhat.com/errata/RHSA-2018:1104 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2018:1113 (vendor-advisory, Third Party Advisory)
- usn.ubuntu.com/3575-1/ (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2017-15119?
- CVE-2017-15119 is a medium-severity vulnerability in Qemu, classified under Uncontrolled Resource Consumption. CVSS score: 5.8/10. Published 2018-07-27.
- How severe is CVE-2017-15119?
- Medium severity. CVSS v3 base score is 5.8 out of 10.