Vulnerability-Lookup

RHSA-2026:39311

Vulnerability from csaf_opensuse - Published: 2026-07-14 00:00 - Updated: 2026-09-16 18:37

Summary

security update for qemu-kvm

Severity

Low

Notes

Title of the patch: security update for qemu-kvm

Description of the patch: This security update provides a functional equivalent of RHSA-2026:39311. The original Red Hat(R) advisory is available from the Red Hat web site at https://access.redhat.com/errata/RHSA-2026:39311.

Patchnames: RHSA-2026:39311

CVE-2026-48914

6.7 (Medium)


                
                  CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:L/A:H

Affected products

Recommended 19 products

Product	Version	Remediation
Unresolved product id: SUSE Liberty Linux 9:qemu-guest-agent-17:10.1.0-17.el9_8.4.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 9:qemu-img-17:10.1.0-17.el9_8.4.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 9:qemu-kvm-17:10.1.0-17.el9_8.4.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 9:qemu-kvm-audio-pa-17:10.1.0-17.el9_8.4.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 9:qemu-kvm-block-blkio-17:10.1.0-17.el9_8.4.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 9:qemu-kvm-block-curl-17:10.1.0-17.el9_8.4.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 9:qemu-kvm-block-rbd-17:10.1.0-17.el9_8.4.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 9:qemu-kvm-common-17:10.1.0-17.el9_8.4.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 9:qemu-kvm-core-17:10.1.0-17.el9_8.4.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 9:qemu-kvm-device-display-virtio-gpu-17:10.1.0-17.el9_8.4.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 9:qemu-kvm-device-display-virtio-gpu-pci-17:10.1.0-17.el9_8.4.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 9:qemu-kvm-device-display-virtio-vga-17:10.1.0-17.el9_8.4.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 9:qemu-kvm-device-usb-host-17:10.1.0-17.el9_8.4.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 9:qemu-kvm-device-usb-redirect-17:10.1.0-17.el9_8.4.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 9:qemu-kvm-docs-17:10.1.0-17.el9_8.4.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 9:qemu-kvm-tools-17:10.1.0-17.el9_8.4.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 9:qemu-kvm-ui-egl-headless-17:10.1.0-17.el9_8.4.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 9:qemu-kvm-ui-opengl-17:10.1.0-17.el9_8.4.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 9:qemu-pr-helper-17:10.1.0-17.el9_8.4.x86_64	—	Vendor Fix

Threats

Impact moderate

References

7 references

URL	Category
https://www.suse.com/support/security/rating/	external
https://ftp.suse.com/pub/projects/security/csaf/r…	self
https://lists.suse.com/pipermail/suse-liberty-lin…	self
https://lists.suse.com/pipermail/suse-liberty-lin…	self
https://www.suse.com/security/cve/CVE-2026-48914/	self
https://www.suse.com/security/cve/CVE-2026-48914	external
https://bugzilla.suse.com/1268794	external

JSON

To clipboard

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    },
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}

CVE-2026-48914 (GCVE-0-2026-48914)

Vulnerability from cvelistv5 – Published: 2026-06-12 09:42 – Updated: 2026-08-31 17:13

Title

Qemu-kvm: heap buffer overflow in virtio-blk scsi request handling

Summary

A flaw was found in QEMU's virtio-blk device. The issue arises because the device does not properly validate the size of input descriptors before writing data. A malicious guest with high privileges could exploit this vulnerability by submitting a malformed virtio-blk SCSI request, leading to an out-of-bounds write in the host heap memory and a potential denial of service (DoS) for the QEMU process.

Severity

6.7 (Medium)


                        
                          CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:L/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-06-12 09:57 UTC

CWE

CWE-122 - Heap-based Buffer Overflow

Assigner

redhat redhat root Scorecard

References

5 references

URL	Tags
https://access.redhat.com/errata/RHSA-2026:39311	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:58571	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2026-48914	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2488283	issue-trackingx_refsource_REDHAT
https://lore.kernel.org/qemu-devel/20260526154957…

Impacted products

8 products

Vendor	Product	Version
		Affected: 1.1.0 , ≤ 11.0.1 (semver)
Red Hat	Red Hat Enterprise Linux 10	Unaffected: 18:10.1.0-16.el10_2.5 , < * (rpm) cpe:/o:redhat:enterprise_linux:10.2
Red Hat	Red Hat Enterprise Linux 9	Unaffected: 17:10.1.0-17.el9_8.4 , < * (rpm) cpe:/a:redhat:enterprise_linux:9::appstream
Red Hat	Red Hat Enterprise Linux 6	cpe:/o:redhat:enterprise_linux:6
Red Hat	Red Hat Enterprise Linux 7	cpe:/o:redhat:enterprise_linux:7
Red Hat	Red Hat Enterprise Linux 8	cpe:/o:redhat:enterprise_linux:8
Red Hat	Red Hat Enterprise Linux for NVIDIA 26	cpe:/a:redhat:enterprise_linux_nvidia:
Red Hat	Red Hat OpenShift Container Platform 4	cpe:/a:redhat:openshift:4

Date Public

2026-05-26 00:00

Credits

Red Hat would like to thank Feifan Qian <bea1e@proton.me> for reporting this issue.

Show details on NVD website

JSON

To clipboard

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          ],
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          "product": "Red Hat Enterprise Linux for NVIDIA 26",
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          "value": "Red Hat would like to thank Feifan Qian \u003cbea1e@proton.me\u003e for reporting this issue."
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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-2026:39311

CVE-2026-48914 (GCVE-0-2026-48914)

Tags

Sightings

Nomenclature

Related by attack behaviour