Vulnerability-Lookup

RHSA-2023:5094

Vulnerability from csaf_opensuse - Published: 2023-09-12 00:00 - Updated: 2026-09-20 11:30

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-2023:5094. The original Red Hat(R) advisory is available from the Red Hat web site at https://access.redhat.com/errata/RHSA-2023:5094.

Patchnames: RHSA-2023:5094

CVE-2023-3354

7.5 (High)


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

Affected products

Recommended 18 products

Product	Version	Remediation
Unresolved product id: SUSE Liberty Linux 9:qemu-guest-agent-17:7.2.0-14.el9_2.5.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 9:qemu-img-17:7.2.0-14.el9_2.5.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 9:qemu-kvm-17:7.2.0-14.el9_2.5.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 9:qemu-kvm-audio-pa-17:7.2.0-14.el9_2.5.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 9:qemu-kvm-block-curl-17:7.2.0-14.el9_2.5.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 9:qemu-kvm-block-rbd-17:7.2.0-14.el9_2.5.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 9:qemu-kvm-common-17:7.2.0-14.el9_2.5.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 9:qemu-kvm-core-17:7.2.0-14.el9_2.5.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 9:qemu-kvm-device-display-virtio-gpu-17:7.2.0-14.el9_2.5.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 9:qemu-kvm-device-display-virtio-gpu-pci-17:7.2.0-14.el9_2.5.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 9:qemu-kvm-device-display-virtio-vga-17:7.2.0-14.el9_2.5.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 9:qemu-kvm-device-usb-host-17:7.2.0-14.el9_2.5.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 9:qemu-kvm-device-usb-redirect-17:7.2.0-14.el9_2.5.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 9:qemu-kvm-docs-17:7.2.0-14.el9_2.5.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 9:qemu-kvm-tools-17:7.2.0-14.el9_2.5.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 9:qemu-kvm-ui-egl-headless-17:7.2.0-14.el9_2.5.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 9:qemu-kvm-ui-opengl-17:7.2.0-14.el9_2.5.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 9:qemu-pr-helper-17:7.2.0-14.el9_2.5.x86_64	—	Vendor Fix

Threats

Impact important

References

5 references

URL	Category
https://www.suse.com/support/security/rating/	external
https://ftp.suse.com/pub/projects/security/csaf/r…	self
https://www.suse.com/security/cve/CVE-2023-3354/	self
https://www.suse.com/security/cve/CVE-2023-3354	external
https://bugzilla.suse.com/1212850	external

JSON

To clipboard

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      "text": "Low"
    },
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      "tlp": {
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      }
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    "notes": [
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        "text": "This security update provides a functional equivalent of RHSA-2023:5094.\nThe original Red Hat(R) advisory is available from the Red Hat web site at\nhttps://access.redhat.com/errata/RHSA-2023:5094.\n",
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      },
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CVE-2023-3354 (GCVE-0-2023-3354)

Vulnerability from cvelistv5 – Published: 2023-07-11 16:16 – Updated: 2025-02-13 16:55

Title

Improper i/o watch removal in tls handshake can lead to remote unauthenticated denial of service

Summary

A flaw was found in the QEMU built-in VNC server. When a client connects to the VNC server, QEMU checks whether the current number of connections crosses a certain threshold and if so, cleans up the previous connection. If the previous connection happens to be in the handshake phase and fails, QEMU cleans up the connection again, resulting in a NULL pointer dereference issue. This could allow a remote unauthenticated client to cause a denial of service.

Severity

7.5 (High)


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

CWE

CWE-476 - NULL Pointer Dereference

Assigner

redhat redhat root

References

4 references

URL	Tags
https://access.redhat.com/security/cve/CVE-2023-3354	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2216478	issue-trackingx_refsource_REDHAT
https://lists.fedoraproject.org/archives/list/pac…
https://lists.debian.org/debian-lts-announce/2024…

Impacted products

9 products

Vendor	Product	Version
n/a	qemu
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 8 Advanced Virtualization	cpe:/a:redhat:advanced_virtualization:8::el8
Red Hat	Red Hat Enterprise Linux 9	cpe:/o:redhat:enterprise_linux:9
Red Hat	Red Hat OpenStack Platform 13 (Queens)	cpe:/a:redhat:openstack:13
Fedora	Fedora
Fedora	Extra Packages for Enterprise Linux

Date Public

2023-06-28 00:00

Credits

Red Hat would like to thank jiangyegen (Huawei Vulnerability Management Center) and yexiao7 (Huawei Vulnerability Management Center) for reporting this issue.

Show details on NVD website

JSON

To clipboard

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        },
        {
          "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MURWGXDIF2WTDXV36T6HFJDBL632AO7R/"
        },
        {
          "url": "https://lists.debian.org/debian-lts-announce/2024/03/msg00012.html"
        }
      ],
      "timeline": [
        {
          "lang": "en",
          "time": "2023-06-21T00:00:00.000Z",
          "value": "Reported to Red Hat."
        },
        {
          "lang": "en",
          "time": "2023-06-28T00:00:00.000Z",
          "value": "Made public."
        }
      ],
      "title": "Improper i/o watch removal in tls handshake can lead to remote unauthenticated denial of service",
      "x_redhatCweChain": "CWE-476: NULL Pointer Dereference"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
    "assignerShortName": "redhat",
    "cveId": "CVE-2023-3354",
    "datePublished": "2023-07-11T16:16:56.294Z",
    "dateReserved": "2023-06-21T12:33:29.897Z",
    "dateUpdated": "2025-02-13T16:55:08.379Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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-2023:5094

CVE-2023-3354 (GCVE-0-2023-3354)

Tags

Sightings

Nomenclature

Related by attack behaviour