National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2017-7539 Detail

Current Description

An assertion-failure flaw was found in Qemu before 2.10.1, in the Network Block Device (NBD) server's initial connection negotiation, where the I/O coroutine was undefined. This could crash the qemu-nbd server if a client sent unexpected data during connection negotiation. A remote user or process could use this flaw to crash the qemu-nbd server resulting in denial of service.

Source:  MITRE
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 7.5 HIGH
Vector: AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H (V3.0 legend)
Impact Score: 3.6
Exploitability Score: 3.9


Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

CVSS v2.0 Severity and Metrics:

Base Score: 5.0 MEDIUM
Vector: (AV:N/AC:L/Au:N/C:N/I:N/A:P) (V2 legend)
Impact Subscore: 2.9
Exploitability Subscore: 10.0


Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Partial
Additional Information:
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://www.openwall.com/lists/oss-security/2017/07/21/4 Mailing List Patch Third Party Advisory
http://www.securityfocus.com/bid/99944 Third Party Advisory VDB Entry
https://access.redhat.com/errata/RHSA-2017:2628 Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:3466 Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:3470 Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:3471 Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:3472 Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:3473 Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:3474 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-7539 Issue Tracking Patch Third Party Advisory
https://git.qemu.org/?p=qemu.git;a=commitdiff;h=2b0bbc4f8809c972bad134bc1a2570dbb01dea0b Patch Vendor Advisory
https://git.qemu.org/?p=qemu.git;a=commitdiff;h=ff82911cd3f69f028f2537825c9720ff78bc3f19 Patch Vendor Advisory

Technical Details

Vulnerability Type (View All)

  • Improper Input Validation (CWE-20)

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
Up to (excluding)
2.10.1

Configuration 2 ( hide )
 cpe:2.3:a:redhat:openstack:6.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:redhat:openstack:7.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:redhat:openstack:8.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:redhat:openstack:9.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:redhat:openstack:10.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:redhat:openstack:11.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:redhat:virtualization:4.0:*:*:*:*:*:*:*
     Show Matching CPE(s)

Configuration 3 ( hide )
 cpe:2.3:a:redhat:virtualization:3.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
Running on/with
 cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
     Show Matching CPE(s)


Change History

3 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2017-7539
NVD Published Date:
07/26/2018
NVD Last Modified:
10/09/2019