High severity · published Jul 27, 2018
CVE-2017-15119
The Network Block Device (NBD) server in Quick Emulator (QEMU) before 2.11 is vulnerable to a denial of service issue
8.6
CVSS
3.3%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)3.3% · higher than 88% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DL
Debian Linux · Debian
9.0 · source: NVD
QE
Qemu · Qemu
before 2.11.0 · source: NVD
UL
Ubuntu Linux · Canonical
14.04; 16.04; 17.10 · source: NVD
VI
Virtualization · Redhat
4.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-15119
CVE.org
https://www.cve.org/CVERecord?id=CVE-2017-15119
Mailing List
http://www.openwall.com/lists/oss-security/2017/11/28/9
Third Party Advisory
http://www.securityfocus.com/bid/102011
Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:1104
Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:1113
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-15119
Mailing List
https://lists.gnu.org/archive/html/qemu-devel/2017-11/msg05044.html
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