Vulnerability-Lookup

RHSA-2019:2166

Vulnerability from csaf_redhat - Published: 2019-08-06 12:34 - Updated: 2026-06-28 12:06

Summary

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

Severity

Moderate

Notes

Topic: An update for qemu-kvm-ma is now available for Red Hat Enterprise Linux 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: Kernel-based Virtual Machine (KVM) is a full virtualization solution for Linux on a variety of architectures. The qemu-kvm-ma packages provide the user-space component for running virtual machines that use KVM on the IBM z Systems, IBM Power, and 64-bit ARM architectures. Security Fix(es): * QEMU: net: ignore packets with large size (CVE-2018-17963) * QEMU: scsi-generic: possible OOB access while handling inquiry request (CVE-2019-6501) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. Additional Changes: For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.7 Release Notes linked from the References section.

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-2018-17963

A potential integer overflow issue was found in the networking back-end of QEMU. It could occur while receiving packets, because it accepted packets with large size value. Such overflow could lead to OOB buffer access issue. A user inside guest could use this flaw to crash the QEMU process resulting in DoS.

6.5 (Medium)


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

CWE-121 - Stack-based Buffer Overflow

Affected products

Fixed 17 products

Product	Version	Remediation
Unresolved product id: 7Server-7.7:qemu-img-ma-10:2.12.0-33.el7.ppc64	—	Vendor Fix fix
Unresolved product id: 7Server-7.7:qemu-img-ma-10:2.12.0-33.el7.ppc64le	—	Vendor Fix fix
Unresolved product id: 7Server-7.7:qemu-img-ma-10:2.12.0-33.el7.s390x	—	Vendor Fix fix
Unresolved product id: 7Server-7.7:qemu-kvm-common-ma-10:2.12.0-33.el7.ppc64le	—	Vendor Fix fix
Unresolved product id: 7Server-7.7:qemu-kvm-common-ma-10:2.12.0-33.el7.s390x	—	Vendor Fix fix
Unresolved product id: 7Server-7.7:qemu-kvm-ma-10:2.12.0-33.el7.ppc64le	—	Vendor Fix fix
Unresolved product id: 7Server-7.7:qemu-kvm-ma-10:2.12.0-33.el7.s390x	—	Vendor Fix fix
Unresolved product id: 7Server-7.7:qemu-kvm-ma-10:2.12.0-33.el7.src	—	Vendor Fix fix
Unresolved product id: 7Server-7.7:qemu-kvm-ma-debuginfo-10:2.12.0-33.el7.ppc64	—	Vendor Fix fix
Unresolved product id: 7Server-7.7:qemu-kvm-ma-debuginfo-10:2.12.0-33.el7.ppc64le	—	Vendor Fix fix
Unresolved product id: 7Server-7.7:qemu-kvm-ma-debuginfo-10:2.12.0-33.el7.s390x	—	Vendor Fix fix
Unresolved product id: 7Server-7.7:qemu-kvm-tools-ma-10:2.12.0-33.el7.ppc64le	—	Vendor Fix fix
Unresolved product id: 7Server-7.7:qemu-kvm-tools-ma-10:2.12.0-33.el7.s390x	—	Vendor Fix fix
Unresolved product id: 7Server-optional-7.7:qemu-kvm-common-ma-10:2.12.0-33.el7.ppc64	—	Vendor Fix fix
Unresolved product id: 7Server-optional-7.7:qemu-kvm-ma-10:2.12.0-33.el7.ppc64	—	Vendor Fix fix
Unresolved product id: 7Server-optional-7.7:qemu-kvm-ma-debuginfo-10:2.12.0-33.el7.ppc64	—	Vendor Fix fix
Unresolved product id: 7Server-optional-7.7:qemu-kvm-tools-ma-10:2.12.0-33.el7.ppc64	—	Vendor Fix fix

Threats

Impact Moderate

CVE-2019-6501

In QEMU 3.1, scsi_handle_inquiry_reply in hw/scsi/scsi-generic.c allows out-of-bounds write and read operations.

2.8 (Low)


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

CWE-787 - Out-of-bounds Write

Affected products

Fixed 17 products, the same list as for CVE-2018-17963

Threats

Impact Low

References

15 references

URL	Category
https://access.redhat.com/errata/RHSA-2019:2166	self
https://access.redhat.com/security/updates/classi…	external
https://access.redhat.com/documentation/en-us/red…	external
https://bugzilla.redhat.com/show_bug.cgi?id=1636777	external
https://bugzilla.redhat.com/show_bug.cgi?id=1668160	external
https://bugzilla.redhat.com/show_bug.cgi?id=1678898	external
https://security.access.redhat.com/data/csaf/v2/a…	self
https://access.redhat.com/security/cve/CVE-2018-17963	self
https://bugzilla.redhat.com/show_bug.cgi?id=1636777	external
https://www.cve.org/CVERecord?id=CVE-2018-17963	external
https://nvd.nist.gov/vuln/detail/CVE-2018-17963	external
https://access.redhat.com/security/cve/CVE-2019-6501	self
https://bugzilla.redhat.com/show_bug.cgi?id=1668160	external
https://www.cve.org/CVERecord?id=CVE-2019-6501	external
https://nvd.nist.gov/vuln/detail/CVE-2019-6501	external

Acknowledgments

Twistlock Daniel Shapira

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            "7Server-optional-7.7:qemu-kvm-common-ma-10:2.12.0-33.el7.ppc64",
            "7Server-optional-7.7:qemu-kvm-ma-10:2.12.0-33.el7.ppc64",
            "7Server-optional-7.7:qemu-kvm-ma-debuginfo-10:2.12.0-33.el7.ppc64",
            "7Server-optional-7.7:qemu-kvm-tools-ma-10:2.12.0-33.el7.ppc64"
          ]
        }
      ],
      "threats": [
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}

CVE-2018-17963 (GCVE-0-2018-17963)

Vulnerability from cvelistv5 – Published: 2018-10-09 22:00 – Updated: 2024-08-05 11:01

Summary

qemu_deliver_packet_iov in net/net.c in Qemu accepts packet sizes greater than INT_MAX, which allows attackers to cause a denial of service or possibly have unspecified other impact.

Severity

No CVSS data available.

CWE

Assigner

mitre CNA under the mitre root

CNA scorecard E 29/100 over 2266 records in the last 180 days details

References

9 references

URL	Tags
http://www.openwall.com/lists/oss-security/2018/10/08/1	mailing-listx_refsource_MLIST
https://www.debian.org/security/2018/dsa-4338	vendor-advisoryx_refsource_DEBIAN
https://lists.gnu.org/archive/html/qemu-devel/201…	mailing-listx_refsource_MLIST
https://usn.ubuntu.com/3826-1/	vendor-advisoryx_refsource_UBUNTU
https://lists.debian.org/debian-lts-announce/2018…	mailing-listx_refsource_MLIST
https://lists.gnu.org/archive/html/qemu-devel/201…	x_refsource_MISC
https://access.redhat.com/errata/RHSA-2019:2166	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2019:2425	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2019:2553	vendor-advisoryx_refsource_REDHAT

Date Public

2018-09-26 00:00

Show details on NVD website

JSON

To clipboard

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CVE-2019-6501 (GCVE-0-2019-6501)

Vulnerability from cvelistv5 – Published: 2019-03-17 16:51 – Updated: 2024-08-04 20:23

Summary

In QEMU 3.1, scsi_handle_inquiry_reply in hw/scsi/scsi-generic.c allows out-of-bounds write and read operations.

Severity

No CVSS data available.

CWE

Assigner

mitre CNA under the mitre root

CNA scorecard E 29/100 over 2266 records in the last 180 days details

References

7 references

URL	Tags
http://www.openwall.com/lists/oss-security/2019/01/24/1	mailing-listx_refsource_MLIST
https://lists.gnu.org/archive/html/qemu-devel/201…	mailing-listx_refsource_MLIST
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
https://security.netapp.com/advisory/ntap-2019041…	x_refsource_CONFIRM
https://access.redhat.com/errata/RHSA-2019:2166	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2019:2425	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2019:2553	vendor-advisoryx_refsource_REDHAT

Date Public

2019-01-11 00:00

Show details on NVD website

JSON

To clipboard

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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.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

Order JSON

How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

Publication & reservation Sightings KEV catalogs Other timestamps

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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.

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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.

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RHSA-2019:2166

CVE-2018-17963 (GCVE-0-2018-17963)

CVE-2019-6501 (GCVE-0-2019-6501)

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