github - ghsa-hm8v-8c3v-cxfq

ghsa-hm8v-8c3v-cxfq

Vulnerability from github

Published

2025-10-03 12:33

Modified

2025-10-03 12:33

Severity ?

7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Details

A flaw was found in QEMU. If the QIOChannelWebsock object is freed while it is waiting to complete a handshake, a GSource is leaked. This can lead to the callback firing later on and triggering a use-after-free in the use of the channel. This can be abused by a malicious client with network access to the VNC WebSocket port to cause a denial of service during the WebSocket handshake prior to the VNC client authentication.

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{
  "affected": [],
  "aliases": [
    "CVE-2025-11234"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-10-03T11:15:30Z",
    "severity": "HIGH"
  },
  "details": "A flaw was found in QEMU. If the QIOChannelWebsock object is freed while it is waiting to complete a handshake, a GSource is leaked. This can lead to the callback firing later on and triggering a use-after-free in the use of the channel. This can be abused by a malicious client with network access to the VNC WebSocket port to cause a denial of service during the WebSocket handshake prior to the VNC client authentication.",
  "id": "GHSA-hm8v-8c3v-cxfq",
  "modified": "2025-10-03T12:33:14Z",
  "published": "2025-10-03T12:33:14Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-11234"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/cve/CVE-2025-11234"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2401209"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

cve-2025-11234

Vulnerability from cvelistv5

Published

2025-10-03 10:30

Modified

2025-10-10 00:47

Severity ?

7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Summary

Qemu-kvm: vnc websocket handshake use-after-free

References

▼	URL	Tags
	https://access.redhat.com/security/cve/CVE-2025-11234	vdb-entry, x_refsource_REDHAT
	https://bugzilla.redhat.com/show_bug.cgi?id=2401209	issue-tracking, x_refsource_REDHAT

Impacted products

▼	Vendor	Product

	Red Hat	Red Hat Enterprise Linux 10
	Red Hat	Red Hat Enterprise Linux 6
	Red Hat	Red Hat Enterprise Linux 7
	Red Hat	Red Hat Enterprise Linux 7
	Red Hat	Red Hat Enterprise Linux 8
	Red Hat	Red Hat Enterprise Linux 8 Advanced Virtualization
	Red Hat	Red Hat Enterprise Linux 8 Advanced Virtualization
	Red Hat	Red Hat Enterprise Linux 9
	Red Hat	Red Hat OpenShift Container Platform 4

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  "containers": {
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        "metrics": [
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                "options": [
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                  },
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                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-10-03T15:56:54.379790Z",
                "version": "2.0.3"
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      ],
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    "dateReserved": "2025-10-01T17:03:04.737Z",
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    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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