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DEBIAN-CVE-2026-0665

Type: advisorySource: OSV1 source record

An off-by-one error was found in QEMU's KVM Xen guest support. A malicious guest could use this flaw to trigger out-of-bounds heap accesses in the QEMU process via the emulated Xen physdev hypercall interface, leading to a denial of service or potential memory corruption.

Announced Source revision 1
Original source ↗

DEBIAN-CVE-2026-0665

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: osv:DEBIAN-CVE-2026-0665

qemu

Source reference: /affected/0/package/name

Affected versions
1:10.0.2+ds-2

Source reference: /affected/0/versions

1:10.0.2+ds-2+deb13u1

Source reference: /affected/0/versions

1:10.0.2+ds-2+deb13u1~bpo12+1

Source reference: /affected/0/versions

1:10.0.3+ds-0+deb13u1

Source reference: /affected/0/versions

1:10.0.3+ds-1

Source reference: /affected/0/versions

1:10.0.3+ds-2

Source reference: /affected/0/versions

1:10.0.3+ds-3

Source reference: /affected/0/versions

1:10.0.3+ds-4

Source reference: /affected/0/versions

1:10.0.6+ds-0+deb13u1

Source reference: /affected/0/versions

1:10.0.6+ds-0+deb13u2

Source reference: /affected/0/versions

1:10.0.7+ds-0+deb13u1

Source reference: /affected/0/versions

Fixed versions
1:10.0.8+ds-0+deb13u1

Source reference: /affected/0/ranges

Prerequisites
Not stated in this record

qemu

Source reference: /affected/1/package/name

Affected versions
1:10.0.2+ds-2

Source reference: /affected/1/versions

1:10.0.3+ds-1

Source reference: /affected/1/versions

1:10.0.3+ds-2

Source reference: /affected/1/versions

1:10.0.3+ds-3

Source reference: /affected/1/versions

1:10.0.3+ds-4

Source reference: /affected/1/versions

1:10.1.0+ds-1

Source reference: /affected/1/versions

1:10.1.0+ds-2

Source reference: /affected/1/versions

1:10.1.0+ds-3

Source reference: /affected/1/versions

1:10.1.0+ds-4

Source reference: /affected/1/versions

1:10.1.0+ds-5

Source reference: /affected/1/versions

1:10.1.0~rc0+ds-1

Source reference: /affected/1/versions

1:10.1.0~rc0+ds-2

Source reference: /affected/1/versions

1:10.1.0~rc0+ds-3

Source reference: /affected/1/versions

1:10.1.0~rc0+ds-4

Source reference: /affected/1/versions

1:10.1.0~rc1+ds-1

Source reference: /affected/1/versions

1:10.1.0~rc1+ds-1a

Source reference: /affected/1/versions

1:10.1.0~rc1+ds-1b

Source reference: /affected/1/versions

1:10.1.0~rc1+ds-2

Source reference: /affected/1/versions

1:10.1.0~rc1+ds-3

Source reference: /affected/1/versions

1:10.1.0~rc2+ds-1

Source reference: /affected/1/versions

1:10.1.0~rc3+ds-1

Source reference: /affected/1/versions

1:10.1.0~rc3+ds-2

Source reference: /affected/1/versions

1:10.1.1+ds-1

Source reference: /affected/1/versions

1:10.1.2+ds-1

Source reference: /affected/1/versions

1:10.1.2+ds-2

Source reference: /affected/1/versions

1:10.1.2+ds-3

Source reference: /affected/1/versions

1:10.1.3+ds-1

Source reference: /affected/1/versions

1:10.2.0+ds-1

Source reference: /affected/1/versions

1:10.2.0~rc1+ds-1

Source reference: /affected/1/versions

Fixed versions
1:10.2.0+ds-2

Source reference: /affected/1/ranges

Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "1:10.0.8+ds-0+deb13u1"
          }
        ]
      }
    ],
    "package": {
      "name": "qemu",
      "purl": "pkg:deb/debian/qemu?arch=source&distro=trixie",
      "ecosystem": "Debian:13"
    },
    "versions": [
      "1:10.0.2+ds-2",
      "1:10.0.2+ds-2+deb13u1",
      "1:10.0.2+ds-2+deb13u1~bpo12+1",
      "1:10.0.3+ds-0+deb13u1",
      "1:10.0.3+ds-1",
      "1:10.0.3+ds-2",
      "1:10.0.3+ds-3",
      "1:10.0.3+ds-4",
      "1:10.0.6+ds-0+deb13u1",
      "1:10.0.6+ds-0+deb13u2",
      "1:10.0.7+ds-0+deb13u1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-0665.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "1:10.2.0+ds-2"
          }
        ]
      }
    ],
    "package": {
      "name": "qemu",
      "purl": "pkg:deb/debian/qemu?arch=source&distro=forky",
      "ecosystem": "Debian:14"
    },
    "versions": [
      "1:10.0.2+ds-2",
      "1:10.0.3+ds-1",
      "1:10.0.3+ds-2",
      "1:10.0.3+ds-3",
      "1:10.0.3+ds-4",
      "1:10.1.0+ds-1",
      "1:10.1.0+ds-2",
      "1:10.1.0+ds-3",
      "1:10.1.0+ds-4",
      "1:10.1.0+ds-5",
      "1:10.1.0~rc0+ds-1",
      "1:10.1.0~rc0+ds-2",
      "1:10.1.0~rc0+ds-3",
      "1:10.1.0~rc0+ds-4",
      "1:10.1.0~rc1+ds-1",
      "1:10.1.0~rc1+ds-1a",
      "1:10.1.0~rc1+ds-1b",
      "1:10.1.0~rc1+ds-2",
      "1:10.1.0~rc1+ds-3",
      "1:10.1.0~rc2+ds-1",
      "1:10.1.0~rc3+ds-1",
      "1:10.1.0~rc3+ds-2",
      "1:10.1.1+ds-1",
      "1:10.1.2+ds-1",
      "1:10.1.2+ds-2",
      "1:10.1.2+ds-3",
      "1:10.1.3+ds-1",
      "1:10.2.0+ds-1",
      "1:10.2.0~rc1+ds-1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-0665.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  }
]

Publisher severity

No explicit severity was provided.

Event
#55383 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement