CVE-2022-2962

A DMA reentrancy issue was found in the Tulip device emulation in QEMU. When Tulip reads or writes to the rx/tx descriptor or copies the rx/tx frame, it doesn't check whether the destination address is its own MMIO address. This can cause the device to trigger MMIO handlers multiple times, possibly leading to a stack or heap overflow. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service condition.

Database specific

{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/2xxx/CVE-2022-2962.json",
    "cna_assigner": "redhat",
    "cwe_ids": [
        "CWE-400"
    ]
}

References

Affected packages

Git / github.com/qemu/qemu

Affected ranges

Type

GIT

Repo

https://github.com/qemu/qemu

Events

Introduced

b0ca999a43a22b38158a222233d3f5881648bb4f

Last affected

621da7789083b80d6f1ff1c0fb499334007b4f51

Database specific

{
    "extracted_events": [
        {
            "introduced": "4.2.0"
        },
        {
            "last_affected": "7.1.0"
        }
    ],
    "cpe": "cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*",
    "source": "CPE_RANGE"
}

Type

GIT

Repo

https://gitlab.com/qemu-project/qemu

Events

Introduced

b0ca999a43a22b38158a222233d3f5881648bb4f

Fixed

36a894aeb64a2e02871016da1c37d4a4ca109182

Database specific

{
    "extracted_events": [
        {
            "introduced": "4.2.0"
        },
        {
            "last_affected": "7.1.0"
        }
    ],
    "cpe": "cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*",
    "source": [
        "CPE_RANGE",
        "REFERENCES"
    ]
}

Affected versions

v4.*

v4.2.0

v5.*

v5.0.0

v5.0.0-rc0

v5.0.0-rc1

v5.0.0-rc2

v5.0.0-rc3

v5.0.0-rc4

v5.1.0

v5.1.0-rc0

v5.1.0-rc1

v5.1.0-rc2

v5.1.0-rc3

v5.2.0

v5.2.0-rc0

v5.2.0-rc1

v5.2.0-rc2

v5.2.0-rc3

v5.2.0-rc4

v6.*

v6.0.0

v6.0.0-rc0

v6.0.0-rc1

v6.0.0-rc2

v6.0.0-rc3

v6.0.0-rc4

v6.0.0-rc5

v6.1.0

v6.1.0-rc0

v6.1.0-rc1

v6.1.0-rc2

v6.1.0-rc3

v6.1.0-rc4

v6.2.0

v6.2.0-rc0

v6.2.0-rc1

v6.2.0-rc3

v6.2.0-rc4

v7.*

v7.0.0

v7.0.0-rc0

v7.0.0-rc1

v7.0.0-rc2

v7.0.0-rc3

v7.0.0-rc4

v7.1.0

v7.1.0-rc0

v7.1.0-rc1

v7.1.0-rc2

v7.1.0-rc3

v7.1.0-rc4

Database specific

vanir_signatures_modified

"2026-06-15T21:16:37Z"

vanir_signatures

[
    {
        "digest": {
            "line_hashes": [
                "33159858745377908645997765771213700539",
                "87404591472821702745539163954061690588",
                "19419043666085762877338208946949306429",
                "118525739223405489846661017724525931171",
                "94652972890096512091001834816232665381",
                "87404591472821702745539163954061690588",
                "322822004330675076548298562185758055897",
                "204039834203728791100931558873361667713"
            ],
            "threshold": 0.9
        },
        "signature_version": "v1",
        "id": "CVE-2022-2962-886a0380",
        "signature_type": "Line",
        "deprecated": false,
        "target": {
            "file": "hw/net/tulip.c"
        },
        "source": "https://gitlab.com/qemu-project/qemu@36a894aeb64a2e02871016da1c37d4a4ca109182"
    },
    {
        "digest": {
            "function_hash": "96687268046739572125620693955961275251",
            "length": 718.0
        },
        "signature_version": "v1",
        "id": "CVE-2022-2962-d9cbf375",
        "signature_type": "Function",
        "deprecated": false,
        "target": {
            "file": "hw/net/tulip.c",
            "function": "tulip_desc_read"
        },
        "source": "https://gitlab.com/qemu-project/qemu@36a894aeb64a2e02871016da1c37d4a4ca109182"
    },
    {
        "digest": {
            "function_hash": "177297676384258436152410763558256028350",
            "length": 702.0
        },
        "signature_version": "v1",
        "id": "CVE-2022-2962-fff12b1c",
        "signature_type": "Function",
        "deprecated": false,
        "target": {
            "file": "hw/net/tulip.c",
            "function": "tulip_desc_write"
        },
        "source": "https://gitlab.com/qemu-project/qemu@36a894aeb64a2e02871016da1c37d4a4ca109182"
    }
]

source

"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-2962.json"