Home/CVE/The Network Block Device (NBD) server in Quick Emulator (QEMU) before 2.11 is vulnerable to a denial of service issue. I
CVE

CVE-2017-15119

The Network Block Device (NBD) server in Quick Emulator (QEMU) before 2.11 is vulnerable to a denial of service issue. I

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.

MEDIUM · CVSS 5.8 EPSS 0.01559
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules2 YARA rules0
⬡

Weakness Classification

CWE-400Uncontrolled Resource Consumption
CWE-400Uncontrolled Resource Consumption
▤

Affected Products & Versions

4
qemu< 2.11.0
redhat virtualizationall versions
canonical ubuntu linuxall versions
debian linuxall versions
◈

Sigma Hunt Rules

2
Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.
productmediumPotentially Suspicious Usage Of Qemu
productmediumPowershell Detect Virtualization Environment
▣

Scoring & Timeline

5.8
MEDIUM · CVSS v3.0 · secalert@redhat.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD27 Jul 2018 · 04:29 PM
CVSS VectorCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L
⚑

Vendor Advisories

5
suse-csafSUSE-SU-2018:0831-1
suse-csafSUSE-SU-2018:0762-1
usnUSN-3575-1
rhsaRHSA-2018:1104Low
rhsaRHSA-2018:1113Low
🔗

References & Sources

6
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://www.openwall.com/lists/oss-security/2017/11/28/9Mailing ListPatchThird Party Advisory
http://www.securityfocus.com/bid/102011Third Party AdvisoryVDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-15119Issue TrackingPatchThird Party Advisory
https://lists.gnu.org/archive/html/qemu-devel/2017-11/msg05044.htmlMailing ListThird Party Advisory
https://usn.ubuntu.com/3575-1/Third Party Advisory
https://www.debian.org/security/2018/dsa-4213Third Party Advisory
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