CVE-2022-2962

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Source
https://cve.org/CVERecord?id=CVE-2022-2962
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-2962.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2022-2962
Downstream
AZL (2)
BELL (1)
DEBIAN (1)
OESA (1)
openSUSE (1)
Related
Published
2022-09-13T19:18:14Z
Modified
2026-08-12T13:01:00Z
Severity
  • 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

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 
{
    "cna_assigner":  "redhat",
    "cwe_ids":  [
        "CWE-400"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/2xxx/CVE-2022-2962.json"
}
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
Show details 
{
    "cpe":  "cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*",
    "extracted_events":  [
        {
            "introduced":  "4.2.0"
        },
        {
            "last_affected":  "7.1.0"
        }
    ],
    "source":  "CPE_RANGE"
}
Type
GIT
Repo
https://gitlab.com/qemu-project/qemu
Events
Introduced
b0ca999a43a22b38158a222233d3f5881648bb4f
Fixed
36a894aeb64a2e02871016da1c37d4a4ca109182
Database specific
Show details 
{
    "cpe":  "cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*",
    "extracted_events":  [
        {
            "introduced":  "4.2.0"
        },
        {
            "last_affected":  "7.1.0"
        }
    ],
    "source":  [
        "CPE_RANGE",
        "REFERENCES"
    ]
}

Affected versions

Will be fixed in QEMU 7.*
Will be fixed in QEMU 7.2.0-rc0
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

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-2962.json"
vanir_signatures 
[
    {
        "deprecated":  false,
        "digest":  {
            "line_hashes":  [
                "33159858745377908645997765771213700539",
                "87404591472821702745539163954061690588",
                "19419043666085762877338208946949306429",
                "118525739223405489846661017724525931171",
                "94652972890096512091001834816232665381",
                "87404591472821702745539163954061690588",
                "322822004330675076548298562185758055897",
                "204039834203728791100931558873361667713"
            ],
            "threshold":  0.9
        },
        "id":  "CVE-2022-2962-886a0380",
        "signature_type":  "Line",
        "signature_version":  "v1",
        "source":  "https://gitlab.com/qemu-project/qemu@36a894aeb64a2e02871016da1c37d4a4ca109182",
        "target":  {
            "file":  "hw/net/tulip.c"
        }
    },
    {
        "deprecated":  false,
        "digest":  {
            "function_hash":  "96687268046739572125620693955961275251",
            "length":  718
        },
        "id":  "CVE-2022-2962-d9cbf375",
        "signature_type":  "Function",
        "signature_version":  "v1",
        "source":  "https://gitlab.com/qemu-project/qemu@36a894aeb64a2e02871016da1c37d4a4ca109182",
        "target":  {
            "file":  "hw/net/tulip.c",
            "function":  "tulip_desc_read"
        }
    },
    {
        "deprecated":  false,
        "digest":  {
            "function_hash":  "177297676384258436152410763558256028350",
            "length":  702
        },
        "id":  "CVE-2022-2962-fff12b1c",
        "signature_type":  "Function",
        "signature_version":  "v1",
        "source":  "https://gitlab.com/qemu-project/qemu@36a894aeb64a2e02871016da1c37d4a4ca109182",
        "target":  {
            "file":  "hw/net/tulip.c",
            "function":  "tulip_desc_write"
        }
    }
]
vanir_signatures_modified 
"2026-08-12T13:01:00Z"