CVE-2017-7539

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.

CVSS v3 7.5 HIGH
CVSS v2.0 5.0 MEDIUM

7.5^/10

CVSS v3 : HIGH

V3 Legend

Vector : AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

5.0^/10

CVSS v2.0 : MEDIUM

V2 Legend

Vector : AV:N/AC:L/Au:N/C:N/I:N/A:P

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	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%3Ba=commitdiff%3Bh=2b0bbc4f8809c972bad134bc1a2570dbb01dea0b
https://git.qemu.org/?p=qemu.git%3Ba=commitdiff%3Bh=ff82911cd3f69f028f2537825c9720ff78bc3f19

Configurations

Configuration 1 (hide)

cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*

Configuration 2 (hide)

OR	cpe:2.3:a:redhat:openstack:6.0:::::::*
	cpe:2.3:a:redhat:openstack:7.0:::::::*
	cpe:2.3:a:redhat:openstack:8:::::::*
	cpe:2.3:a:redhat:openstack:9:::::::*
	cpe:2.3:a:redhat:openstack:10:::::::*
	cpe:2.3:a:redhat:openstack:11:::::::*
	cpe:2.3:a:redhat:virtualization:4.0:::::::*

Configuration 3 (hide)

AND

cpe:2.3:a:redhat:virtualization:3.0:*:*:*:*:*:*:*

cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*

History

No history.

Information

Published : 2018-07-26 14:29

Updated : 2023-02-12 23:30

NVD link : CVE-2017-7539

Mitre link : CVE-2017-7539

CVE.ORG link : CVE-2017-7539

JSON object : View

Products Affected

redhat

openstack
virtualization
enterprise_linux

qemu

qemu

CWE

CWE-617

Reachable Assertion

CWE-20

Improper Input Validation

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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."}, {"lang": "es", "value": "Se ha detectado un fallo de aserci\u00f3n en Qemu en versiones anteriores a la 2.10.1 en la negociaci\u00f3n de conexi\u00f3n inicial de los servidores de NBD (Network Block Device) en el que la corrutina I/O no estaba definida. Esto podr\u00eda provocar el cierre inesperado del servidor qemu-nbd si un cliente env\u00eda datos no esperados durante la negociaci\u00f3n de la conexi\u00f3n. Un proceso o usuario remoto podr\u00eda utilizar este fallo para provocar el cierre inesperado del servidor qemu-nbd, resultando en una denegaci\u00f3n de servicio (DoS)."}], "lastModified": "2023-02-12T23:30:39.380", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "12B552F4-85B9-41D8-8408-BB42CC30F8CC", "versionEndExcluding": "2.10.1"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:redhat:openstack:6.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "31EC146C-A6F6-4C0D-AF87-685286262DAA"}, {"criteria": "cpe:2.3:a:redhat:openstack:7.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "9DAA72A4-AC7D-4544-89D4-5B07961D5A95"}, {"criteria": "cpe:2.3:a:redhat:openstack:8:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E8B8C725-34CF-4340-BE7B-37E58CF706D6"}, {"criteria": "cpe:2.3:a:redhat:openstack:9:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F40C26BE-56CB-4022-A1D8-3CA0A8F87F4B"}, {"criteria": "cpe:2.3:a:redhat:openstack:10:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E722FEF7-58A6-47AD-B1D0-DB0B71B0C7AA"}, {"criteria": "cpe:2.3:a:redhat:openstack:11:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "4E9AF77C-5D49-4842-9817-AD710A919073"}, {"criteria": "cpe:2.3:a:redhat:virtualization:4.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "6BBD7A51-0590-4DDF-8249-5AFA8D645CB6"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:redhat:virtualization:3.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "D86166F9-BBF0-4650-8CCD-0F9C97104D21"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "142AD0DD-4CF3-4D74-9442-459CE3347E3A"}], "operator": "OR"}], "operator": "AND"}], "sourceIdentifier": "secalert@redhat.com"}

7.5 /10

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

5.0 /10

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

JSON object

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