CVE-2021-42553

See a problem?
Please try reporting it to the source first.
Source
https://nvd.nist.gov/vuln/detail/CVE-2021-42553
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-42553.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2021-42553
Downstream
Published
2022-10-21T10:15:12Z
Modified
2025-10-21T06:37:28.045243Z
Severity
  • 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

A buffer overflow vulnerability in stm32mwusbhost of STMicroelectronics in versions before 3.5.1 allows an attacker to execute arbitrary code when the descriptor contains more endpoints than USBHMAXNUMENDPOINTS. The library is typically integrated when using a RTOS such as FreeRTOS on STM32 MCUs.

References

Affected packages

Git / github.com/stmicroelectronics/stm32_mw_usb_host

Affected ranges

Type
GIT
Repo
https://github.com/stmicroelectronics/stm32_mw_usb_host
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
38bc365e09b89c43b495af7261e31fe90a07335c

Affected versions

v3.*

v3.3.3
v3.3.4
v3.3.5
v3.4.0
v3.4.1
v3.5.0

Database specific

vanir_signatures

[
    {
        "signature_type": "Function",
        "digest": {
            "function_hash": "101013018286272135665994875130552585540",
            "length": 211.0
        },
        "deprecated": false,
        "signature_version": "v1",
        "target": {
            "function": "USBH_HID_GetHIDReportDescriptor",
            "file": "Class/HID/Src/usbh_hid.c"
        },
        "source": "https://github.com/stmicroelectronics/stm32_mw_usb_host/commit/38bc365e09b89c43b495af7261e31fe90a07335c",
        "id": "CVE-2021-42553-072d1ca8"
    },
    {
        "signature_type": "Line",
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "118757189412808123883011596788122090666",
                "294667195086430173860741692290097171141",
                "187214976403033433262228332552118895945",
                "137593365942804554308118282916426684867",
                "291743261773558538913181851473181815724",
                "260965498145777677279161969622068292321",
                "81307865633653044523715750062154126950",
                "182549894355162921880637443123959807508",
                "301162919746761003319096839076056283767",
                "124968190509980897496689359131446923269",
                "137390176746861958459788026219318081218",
                "80495478909957398172814431486051757337",
                "208055177229135412279420259539903455348",
                "14560101632762531518675057492232782613",
                "153030586356154005336452994923539720910",
                "16584116413551807105246457151873222717",
                "210487852908437705905940403739834702258",
                "33262388619799095687826892789662997288",
                "219843744489677069728911090888202348253",
                "190977689263187361247293466551740928154",
                "315686833483779414553681503742526579867",
                "240841403560123479243507627471161479157",
                "67107639677730701250069737636899221797",
                "198829222086163936202469044529065265240",
                "183035321427877351947796026636472330082",
                "104530799870143740031688989610416033612",
                "74164044234099653483398976818513965751",
                "310815255382369357118322684513559788087",
                "291968491637528452032075759668470281357"
            ]
        },
        "deprecated": false,
        "signature_version": "v1",
        "target": {
            "file": "Core/Src/usbh_ctlreq.c"
        },
        "source": "https://github.com/stmicroelectronics/stm32_mw_usb_host/commit/38bc365e09b89c43b495af7261e31fe90a07335c",
        "id": "CVE-2021-42553-4bdb2278"
    },
    {
        "signature_type": "Function",
        "digest": {
            "function_hash": "82685008848690312917216062201946717037",
            "length": 204.0
        },
        "deprecated": false,
        "signature_version": "v1",
        "target": {
            "function": "USBH_HID_GetHIDDescriptor",
            "file": "Class/HID/Src/usbh_hid.c"
        },
        "source": "https://github.com/stmicroelectronics/stm32_mw_usb_host/commit/38bc365e09b89c43b495af7261e31fe90a07335c",
        "id": "CVE-2021-42553-533c56cb"
    },
    {
        "signature_type": "Line",
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "260959252536352337365984465505563015773",
                "147384568506523324819093248178793598121",
                "208380567881834530330500807456090466536",
                "260959252536352337365984465505563015773",
                "147384568506523324819093248178793598121",
                "283928008138869119225923979136231840689"
            ]
        },
        "deprecated": false,
        "signature_version": "v1",
        "target": {
            "file": "Class/HID/Src/usbh_hid.c"
        },
        "source": "https://github.com/stmicroelectronics/stm32_mw_usb_host/commit/38bc365e09b89c43b495af7261e31fe90a07335c",
        "id": "CVE-2021-42553-565d2823"
    },
    {
        "signature_type": "Function",
        "digest": {
            "function_hash": "249341499873474908141161298497588837300",
            "length": 2181.0
        },
        "deprecated": false,
        "signature_version": "v1",
        "target": {
            "function": "USBH_ParseCfgDesc",
            "file": "Core/Src/usbh_ctlreq.c"
        },
        "source": "https://github.com/stmicroelectronics/stm32_mw_usb_host/commit/38bc365e09b89c43b495af7261e31fe90a07335c",
        "id": "CVE-2021-42553-7b2bf7a1"
    },
    {
        "signature_type": "Function",
        "digest": {
            "function_hash": "315905044694454016631705563907559952530",
            "length": 1364.0
        },
        "deprecated": false,
        "signature_version": "v1",
        "target": {
            "function": "USBH_ParseDevDesc",
            "file": "Core/Src/usbh_ctlreq.c"
        },
        "source": "https://github.com/stmicroelectronics/stm32_mw_usb_host/commit/38bc365e09b89c43b495af7261e31fe90a07335c",
        "id": "CVE-2021-42553-92f272e3"
    },
    {
        "signature_type": "Function",
        "digest": {
            "function_hash": "205052923788993717612071099532273944080",
            "length": 575.0
        },
        "deprecated": false,
        "signature_version": "v1",
        "target": {
            "function": "USBH_ParseInterfaceDesc",
            "file": "Core/Src/usbh_ctlreq.c"
        },
        "source": "https://github.com/stmicroelectronics/stm32_mw_usb_host/commit/38bc365e09b89c43b495af7261e31fe90a07335c",
        "id": "CVE-2021-42553-d46330e5"
    }
]