Vulnerability-Lookup

RHSA-2017:2628

Vulnerability from csaf_redhat - Published: 2017-09-05 11:52 - Updated: 2026-06-30 11:35

Summary

Red Hat Security Advisory: qemu-kvm-rhev security and bug fix update

Severity

Moderate

Notes

Topic: An update for qemu-kvm-rhev is now available for RHEV 3.X Hypervisor and Agents for RHEL-7 and RHEV 4.X RHEV-H and Agents for RHEL-7. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Details: KVM (Kernel-based Virtual Machine) is a full virtualization solution for Linux on a variety of architectures. The qemu-kvm-rhev packages provide the user-space component for running virtual machines that use KVM in environments managed by Red Hat products. Security Fix(es): * An assertion-failure flaw was found in the Network Block Device (NBD) server's initial connection negotiation, where the I/O co-routine 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. (CVE-2017-7539)

Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.

CVE-2017-7539

An assertion-failure flaw was found 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.

5.3 (Medium)


                
                  CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

CWE-617 - Reachable Assertion

Affected products

Fixed 22 products

Product	Version	Remediation
Unresolved product id: 7Server-RHEV-4-Agents-7:qemu-img-rhev-10:2.9.0-16.el7_4.5.ppc64le	—	Vendor Fix fix
Unresolved product id: 7Server-RHEV-4-Agents-7:qemu-img-rhev-10:2.9.0-16.el7_4.5.x86_64	—	Vendor Fix fix
Unresolved product id: 7Server-RHEV-4-Agents-7:qemu-kvm-common-rhev-10:2.9.0-16.el7_4.5.ppc64le	—	Vendor Fix fix
Unresolved product id: 7Server-RHEV-4-Agents-7:qemu-kvm-common-rhev-10:2.9.0-16.el7_4.5.x86_64	—	Vendor Fix fix
Unresolved product id: 7Server-RHEV-4-Agents-7:qemu-kvm-rhev-10:2.9.0-16.el7_4.5.ppc64le	—	Vendor Fix fix
Unresolved product id: 7Server-RHEV-4-Agents-7:qemu-kvm-rhev-10:2.9.0-16.el7_4.5.src	—	Vendor Fix fix
Unresolved product id: 7Server-RHEV-4-Agents-7:qemu-kvm-rhev-10:2.9.0-16.el7_4.5.x86_64	—	Vendor Fix fix
Unresolved product id: 7Server-RHEV-4-Agents-7:qemu-kvm-rhev-debuginfo-10:2.9.0-16.el7_4.5.ppc64le	—	Vendor Fix fix
Unresolved product id: 7Server-RHEV-4-Agents-7:qemu-kvm-rhev-debuginfo-10:2.9.0-16.el7_4.5.x86_64	—	Vendor Fix fix
Unresolved product id: 7Server-RHEV-4-Agents-7:qemu-kvm-tools-rhev-10:2.9.0-16.el7_4.5.ppc64le	—	Vendor Fix fix
Unresolved product id: 7Server-RHEV-4-Agents-7:qemu-kvm-tools-rhev-10:2.9.0-16.el7_4.5.x86_64	—	Vendor Fix fix
Unresolved product id: 7Server-RHEV-Agents-7:qemu-img-rhev-10:2.9.0-16.el7_4.5.ppc64le	—	Vendor Fix fix
Unresolved product id: 7Server-RHEV-Agents-7:qemu-img-rhev-10:2.9.0-16.el7_4.5.x86_64	—	Vendor Fix fix
Unresolved product id: 7Server-RHEV-Agents-7:qemu-kvm-common-rhev-10:2.9.0-16.el7_4.5.ppc64le	—	Vendor Fix fix
Unresolved product id: 7Server-RHEV-Agents-7:qemu-kvm-common-rhev-10:2.9.0-16.el7_4.5.x86_64	—	Vendor Fix fix
Unresolved product id: 7Server-RHEV-Agents-7:qemu-kvm-rhev-10:2.9.0-16.el7_4.5.ppc64le	—	Vendor Fix fix
Unresolved product id: 7Server-RHEV-Agents-7:qemu-kvm-rhev-10:2.9.0-16.el7_4.5.src	—	Vendor Fix fix
Unresolved product id: 7Server-RHEV-Agents-7:qemu-kvm-rhev-10:2.9.0-16.el7_4.5.x86_64	—	Vendor Fix fix
Unresolved product id: 7Server-RHEV-Agents-7:qemu-kvm-rhev-debuginfo-10:2.9.0-16.el7_4.5.ppc64le	—	Vendor Fix fix
Unresolved product id: 7Server-RHEV-Agents-7:qemu-kvm-rhev-debuginfo-10:2.9.0-16.el7_4.5.x86_64	—	Vendor Fix fix
Unresolved product id: 7Server-RHEV-Agents-7:qemu-kvm-tools-rhev-10:2.9.0-16.el7_4.5.ppc64le	—	Vendor Fix fix
Unresolved product id: 7Server-RHEV-Agents-7:qemu-kvm-tools-rhev-10:2.9.0-16.el7_4.5.x86_64	—	Vendor Fix fix

Threats

Impact Moderate

References

11 references

URL	Category
https://access.redhat.com/errata/RHSA-2017:2628	self
https://access.redhat.com/security/updates/classi…	external
https://bugzilla.redhat.com/show_bug.cgi?id=1473622	external
https://bugzilla.redhat.com/show_bug.cgi?id=1482515	external
https://bugzilla.redhat.com/show_bug.cgi?id=1482851	external
https://bugzilla.redhat.com/show_bug.cgi?id=1482856	external
https://security.access.redhat.com/data/csaf/v2/a…	self
https://access.redhat.com/security/cve/CVE-2017-7539	self
https://bugzilla.redhat.com/show_bug.cgi?id=1473622	external
https://www.cve.org/CVERecord?id=CVE-2017-7539	external
https://nvd.nist.gov/vuln/detail/CVE-2017-7539	external

JSON

To clipboard

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          "title": "Vulnerability description"
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          "title": "Vulnerability summary"
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      "title": "Qemu: qemu-nbd crashes due to undefined I/O coroutine"
    }
  ]
}

CVE-2017-7539 (GCVE-0-2017-7539)

Vulnerability from cvelistv5 – Published: 2018-07-26 14:00 – Updated: 2024-08-05 16:04

Summary

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.

Severity

5.3 (Medium)


                        
                          CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

CWE

CWE-617

Assigner

redhat redhat root

References

12 references

URL	Tags
https://access.redhat.com/errata/RHSA-2017:2628	vendor-advisoryx_refsource_REDHAT
https://git.qemu.org/?p=qemu.git%3Ba=commitdiff%3…	x_refsource_CONFIRM
https://access.redhat.com/errata/RHSA-2017:3473	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2017:3470	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2017:3472	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2017:3474	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2017:3471	vendor-advisoryx_refsource_REDHAT
https://git.qemu.org/?p=qemu.git%3Ba=commitdiff%3…	x_refsource_CONFIRM
http://www.openwall.com/lists/oss-security/2017/07/21/4	mailing-listx_refsource_MLIST
https://access.redhat.com/errata/RHSA-2017:3466	vendor-advisoryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2…	x_refsource_CONFIRM
http://www.securityfocus.com/bid/99944	vdb-entryx_refsource_BID

Impacted products

1 product

Vendor	Product	Version
QEMU	Qemu	Affected: 2.10.1

Date Public

2017-06-02 00:00

Show details on NVD website

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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

RHSA-2017:2628

CVE-2017-7539 (GCVE-0-2017-7539)

Tags

Sightings

Nomenclature

Related by attack behaviour