CVE-2023-53244

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Source
https://cve.org/CVERecord?id=CVE-2023-53244
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-53244.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2023-53244
Aliases
Downstream
Related
Published
2025-09-15T14:46:12.951Z
Modified
2026-02-20T01:36:00.259495Z
Severity
  • 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
media: pci: tw68: Fix null-ptr-deref bug in buf prepare and finish
Details

In the Linux kernel, the following vulnerability has been resolved:

media: pci: tw68: Fix null-ptr-deref bug in buf prepare and finish

When the driver calls tw68riscbuffer() to prepare the buffer, the function call dmaalloccoherent may fail, resulting in a empty buffer buf->cpu. Later when we free the buffer or access the buffer, null ptr deref is triggered.

This bug is similar to the following one: https://git.linuxtv.org/media_stage.git/commit/?id=2b064d91440b33fba5b452f2d1b31f13ae911d71.

We believe the bug can be also dynamically triggered from user side. Similarly, we fix this by checking the return value of tw68riscbuffer() and the value of buf->cpu before buffer free.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53244.json",
    "cna_assigner": "Linux"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
e15d1c12c5878b3a80d6573af1721e17264e0286
Fixed
dcf632bca424e6ff8c8eb89c96694e7f05cd29b6
Fixed
3c67f49a6643d973e83968ea35806c7b5ae68b56
Fixed
3715c5e9a8f96b6ed0dcbea06da443efccac1ecc
Fixed
1634b7adcc5bef645b3666fdd564e5952a9e24e0

Affected versions

v3.*
v3.17
v3.17-rc2
v3.17-rc3
v3.17-rc4
v3.17-rc5
v3.17-rc6
v3.17-rc7
v3.18
v3.18-rc1
v3.18-rc2
v3.18-rc3
v3.18-rc4
v3.18-rc5
v3.18-rc6
v3.18-rc7
v3.19
v3.19-rc1
v3.19-rc2
v3.19-rc3
v3.19-rc4
v3.19-rc5
v3.19-rc6
v3.19-rc7
v4.*
v4.0
v4.0-rc1
v4.0-rc2
v4.0-rc3
v4.0-rc4
v4.0-rc5
v4.0-rc6
v4.0-rc7
v4.1
v4.1-rc1
v4.1-rc2
v4.1-rc3
v4.1-rc4
v4.1-rc5
v4.1-rc6
v4.1-rc7
v4.1-rc8
v4.10
v4.10-rc1
v4.10-rc2
v4.10-rc3
v4.10-rc4
v4.10-rc5
v4.10-rc6
v4.10-rc7
v4.10-rc8
v4.11
v4.11-rc1
v4.11-rc2
v4.11-rc3
v4.11-rc4
v4.11-rc5
v4.11-rc6
v4.11-rc7
v4.11-rc8
v4.12
v4.12-rc1
v4.12-rc2
v4.12-rc3
v4.12-rc4
v4.12-rc5
v4.12-rc6
v4.12-rc7
v4.13
v4.13-rc1
v4.13-rc2
v4.13-rc3
v4.13-rc4
v4.13-rc5
v4.13-rc6
v4.13-rc7
v4.14
v4.14-rc1
v4.14-rc2
v4.14-rc3
v4.14-rc4
v4.14-rc5
v4.14-rc6
v4.14-rc7
v4.14-rc8
v4.15
v4.15-rc1
v4.15-rc2
v4.15-rc3
v4.15-rc4
v4.15-rc5
v4.15-rc6
v4.15-rc7
v4.15-rc8
v4.15-rc9
v4.16
v4.16-rc1
v4.16-rc2
v4.16-rc3
v4.16-rc4
v4.16-rc5
v4.16-rc6
v4.16-rc7
v4.17
v4.17-rc1
v4.17-rc2
v4.17-rc3
v4.17-rc4
v4.17-rc5
v4.17-rc6
v4.17-rc7
v4.18
v4.18-rc1
v4.18-rc2
v4.18-rc3
v4.18-rc4
v4.18-rc5
v4.18-rc6
v4.18-rc7
v4.18-rc8
v4.19
v4.19-rc1
v4.19-rc2
v4.19-rc3
v4.19-rc4
v4.19-rc5
v4.19-rc6
v4.19-rc7
v4.19-rc8
v4.2
v4.2-rc1
v4.2-rc2
v4.2-rc3
v4.2-rc4
v4.2-rc5
v4.2-rc6
v4.2-rc7
v4.2-rc8
v4.20
v4.20-rc1
v4.20-rc2
v4.20-rc3
v4.20-rc4
v4.20-rc5
v4.20-rc6
v4.20-rc7
v4.3
v4.3-rc1
v4.3-rc2
v4.3-rc3
v4.3-rc4
v4.3-rc5
v4.3-rc6
v4.3-rc7
v4.4
v4.4-rc1
v4.4-rc2
v4.4-rc3
v4.4-rc4
v4.4-rc5
v4.4-rc6
v4.4-rc7
v4.4-rc8
v4.5
v4.5-rc1
v4.5-rc2
v4.5-rc3
v4.5-rc4
v4.5-rc5
v4.5-rc6
v4.5-rc7
v4.6
v4.6-rc1
v4.6-rc2
v4.6-rc3
v4.6-rc4
v4.6-rc5
v4.6-rc6
v4.6-rc7
v4.7
v4.7-rc1
v4.7-rc2
v4.7-rc3
v4.7-rc4
v4.7-rc5
v4.7-rc6
v4.7-rc7
v4.8
v4.8-rc1
v4.8-rc2
v4.8-rc3
v4.8-rc4
v4.8-rc5
v4.8-rc6
v4.8-rc7
v4.8-rc8
v4.9
v4.9-rc1
v4.9-rc2
v4.9-rc3
v4.9-rc4
v4.9-rc5
v4.9-rc6
v4.9-rc7
v4.9-rc8
v5.*
v5.0
v5.0-rc1
v5.0-rc2
v5.0-rc3
v5.0-rc4
v5.0-rc5
v5.0-rc6
v5.0-rc7
v5.0-rc8
v5.1
v5.1-rc1
v5.1-rc2
v5.1-rc3
v5.1-rc4
v5.1-rc5
v5.1-rc6
v5.1-rc7
v5.10
v5.10-rc1
v5.10-rc2
v5.10-rc3
v5.10-rc4
v5.10-rc5
v5.10-rc6
v5.10-rc7
v5.11
v5.11-rc1
v5.11-rc2
v5.11-rc3
v5.11-rc4
v5.11-rc5
v5.11-rc6
v5.11-rc7
v5.12
v5.12-rc1
v5.12-rc1-dontuse
v5.12-rc2
v5.12-rc3
v5.12-rc4
v5.12-rc5
v5.12-rc6
v5.12-rc7
v5.12-rc8
v5.13
v5.13-rc1
v5.13-rc2
v5.13-rc3
v5.13-rc4
v5.13-rc5
v5.13-rc6
v5.13-rc7
v5.14
v5.14-rc1
v5.14-rc2
v5.14-rc3
v5.14-rc4
v5.14-rc5
v5.14-rc6
v5.14-rc7
v5.15
v5.15-rc1
v5.15-rc2
v5.15-rc3
v5.15-rc4
v5.15-rc5
v5.15-rc6
v5.15-rc7
v5.15.1
v5.15.10
v5.15.100
v5.15.101
v5.15.102
v5.15.103
v5.15.104
v5.15.105
v5.15.106
v5.15.107
v5.15.108
v5.15.109
v5.15.11
v5.15.110
v5.15.111
v5.15.112
v5.15.12
v5.15.13
v5.15.14
v5.15.15
v5.15.16
v5.15.17
v5.15.18
v5.15.19
v5.15.2
v5.15.20
v5.15.21
v5.15.22
v5.15.23
v5.15.24
v5.15.25
v5.15.26
v5.15.27
v5.15.28
v5.15.29
v5.15.3
v5.15.30
v5.15.31
v5.15.32
v5.15.33
v5.15.34
v5.15.35
v5.15.36
v5.15.37
v5.15.38
v5.15.39
v5.15.4
v5.15.40
v5.15.41
v5.15.42
v5.15.43
v5.15.44
v5.15.45
v5.15.46
v5.15.47
v5.15.48
v5.15.49
v5.15.5
v5.15.50
v5.15.51
v5.15.52
v5.15.53
v5.15.54
v5.15.55
v5.15.56
v5.15.57
v5.15.58
v5.15.59
v5.15.6
v5.15.60
v5.15.61
v5.15.62
v5.15.63
v5.15.64
v5.15.65
v5.15.66
v5.15.67
v5.15.68
v5.15.69
v5.15.7
v5.15.70
v5.15.71
v5.15.72
v5.15.73
v5.15.74
v5.15.75
v5.15.76
v5.15.77
v5.15.78
v5.15.79
v5.15.8
v5.15.80
v5.15.81
v5.15.82
v5.15.83
v5.15.84
v5.15.85
v5.15.86
v5.15.87
v5.15.88
v5.15.89
v5.15.9
v5.15.90
v5.15.91
v5.15.92
v5.15.93
v5.15.94
v5.15.95
v5.15.96
v5.15.97
v5.15.98
v5.15.99
v5.16
v5.16-rc1
v5.16-rc2
v5.16-rc3
v5.16-rc4
v5.16-rc5
v5.16-rc6
v5.16-rc7
v5.16-rc8
v5.17
v5.17-rc1
v5.17-rc2
v5.17-rc3
v5.17-rc4
v5.17-rc5
v5.17-rc6
v5.17-rc7
v5.17-rc8
v5.18
v5.18-rc1
v5.18-rc2
v5.18-rc3
v5.18-rc4
v5.18-rc5
v5.18-rc6
v5.18-rc7
v5.19
v5.19-rc1
v5.19-rc2
v5.19-rc3
v5.19-rc4
v5.19-rc5
v5.19-rc6
v5.19-rc7
v5.19-rc8
v5.2
v5.2-rc1
v5.2-rc2
v5.2-rc3
v5.2-rc4
v5.2-rc5
v5.2-rc6
v5.2-rc7
v5.3
v5.3-rc1
v5.3-rc2
v5.3-rc3
v5.3-rc4
v5.3-rc5
v5.3-rc6
v5.3-rc7
v5.3-rc8
v5.4
v5.4-rc1
v5.4-rc2
v5.4-rc3
v5.4-rc4
v5.4-rc5
v5.4-rc6
v5.4-rc7
v5.4-rc8
v5.5
v5.5-rc1
v5.5-rc2
v5.5-rc3
v5.5-rc4
v5.5-rc5
v5.5-rc6
v5.5-rc7
v5.6
v5.6-rc1
v5.6-rc2
v5.6-rc3
v5.6-rc4
v5.6-rc5
v5.6-rc6
v5.6-rc7
v5.7
v5.7-rc1
v5.7-rc2
v5.7-rc3
v5.7-rc4
v5.7-rc5
v5.7-rc6
v5.7-rc7
v5.8
v5.8-rc1
v5.8-rc2
v5.8-rc3
v5.8-rc4
v5.8-rc5
v5.8-rc6
v5.8-rc7
v5.9
v5.9-rc1
v5.9-rc2
v5.9-rc3
v5.9-rc4
v5.9-rc5
v5.9-rc6
v5.9-rc7
v5.9-rc8
v6.*
v6.0
v6.0-rc1
v6.0-rc2
v6.0-rc3
v6.0-rc4
v6.0-rc5
v6.0-rc6
v6.0-rc7
v6.1
v6.1-rc1
v6.1-rc2
v6.1-rc3
v6.1-rc4
v6.1-rc5
v6.1-rc6
v6.1-rc7
v6.1-rc8
v6.1.1
v6.1.10
v6.1.11
v6.1.12
v6.1.13
v6.1.14
v6.1.15
v6.1.16
v6.1.17
v6.1.18
v6.1.19
v6.1.2
v6.1.20
v6.1.21
v6.1.22
v6.1.23
v6.1.24
v6.1.25
v6.1.26
v6.1.27
v6.1.28
v6.1.29
v6.1.3
v6.1.4
v6.1.5
v6.1.6
v6.1.7
v6.1.8
v6.1.9
v6.2
v6.2-rc1
v6.2-rc2
v6.2-rc3
v6.2-rc4
v6.2-rc5
v6.2-rc6
v6.2-rc7
v6.2-rc8
v6.3
v6.3-rc1
v6.3-rc2
v6.3-rc3
v6.3-rc4
v6.3-rc5
v6.3-rc6
v6.3-rc7
v6.3.1
v6.3.2
v6.3.3

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-53244.json"
vanir_signatures 
[
    {
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@3c67f49a6643d973e83968ea35806c7b5ae68b56",
        "id": "CVE-2023-53244-3d0c9ea0",
        "signature_version": "v1",
        "target": {
            "function": "tw68_buf_prepare",
            "file": "drivers/media/pci/tw68/tw68-video.c"
        },
        "digest": {
            "function_hash": "204175930634691535009008186058247430154",
            "length": 1181.0
        },
        "signature_type": "Function",
        "deprecated": false
    },
    {
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@1634b7adcc5bef645b3666fdd564e5952a9e24e0",
        "id": "CVE-2023-53244-5c2b9795",
        "signature_version": "v1",
        "target": {
            "function": "tw68_buf_prepare",
            "file": "drivers/media/pci/tw68/tw68-video.c"
        },
        "digest": {
            "function_hash": "204175930634691535009008186058247430154",
            "length": 1181.0
        },
        "signature_type": "Function",
        "deprecated": false
    },
    {
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@dcf632bca424e6ff8c8eb89c96694e7f05cd29b6",
        "id": "CVE-2023-53244-6165bd76",
        "signature_version": "v1",
        "target": {
            "file": "drivers/media/pci/tw68/tw68-video.c"
        },
        "digest": {
            "line_hashes": [
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                "114861313067031862716191270218194720500",
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    {
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        "id": "CVE-2023-53244-6535ddac",
        "signature_version": "v1",
        "target": {
            "file": "drivers/media/pci/tw68/tw68-video.c"
        },
        "digest": {
            "line_hashes": [
                "132188205382877332009836925136598164914",
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                "12836040449094093204389755484965888794",
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            "threshold": 0.9
        },
        "signature_type": "Line",
        "deprecated": false
    },
    {
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@3c67f49a6643d973e83968ea35806c7b5ae68b56",
        "id": "CVE-2023-53244-672ce4fd",
        "signature_version": "v1",
        "target": {
            "function": "tw68_buf_finish",
            "file": "drivers/media/pci/tw68/tw68-video.c"
        },
        "digest": {
            "function_hash": "264724835848455933511112270234305969205",
            "length": 294.0
        },
        "signature_type": "Function",
        "deprecated": false
    },
    {
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@3715c5e9a8f96b6ed0dcbea06da443efccac1ecc",
        "id": "CVE-2023-53244-6ecff2b2",
        "signature_version": "v1",
        "target": {
            "function": "tw68_buf_finish",
            "file": "drivers/media/pci/tw68/tw68-video.c"
        },
        "digest": {
            "function_hash": "264724835848455933511112270234305969205",
            "length": 294.0
        },
        "signature_type": "Function",
        "deprecated": false
    },
    {
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@1634b7adcc5bef645b3666fdd564e5952a9e24e0",
        "id": "CVE-2023-53244-7fdc6b14",
        "signature_version": "v1",
        "target": {
            "function": "tw68_buf_finish",
            "file": "drivers/media/pci/tw68/tw68-video.c"
        },
        "digest": {
            "function_hash": "264724835848455933511112270234305969205",
            "length": 294.0
        },
        "signature_type": "Function",
        "deprecated": false
    },
    {
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@dcf632bca424e6ff8c8eb89c96694e7f05cd29b6",
        "id": "CVE-2023-53244-8ea7f040",
        "signature_version": "v1",
        "target": {
            "function": "tw68_buf_prepare",
            "file": "drivers/media/pci/tw68/tw68-video.c"
        },
        "digest": {
            "function_hash": "204175930634691535009008186058247430154",
            "length": 1181.0
        },
        "signature_type": "Function",
        "deprecated": false
    },
    {
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@3715c5e9a8f96b6ed0dcbea06da443efccac1ecc",
        "id": "CVE-2023-53244-9514146f",
        "signature_version": "v1",
        "target": {
            "function": "tw68_buf_prepare",
            "file": "drivers/media/pci/tw68/tw68-video.c"
        },
        "digest": {
            "function_hash": "204175930634691535009008186058247430154",
            "length": 1181.0
        },
        "signature_type": "Function",
        "deprecated": false
    },
    {
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@1634b7adcc5bef645b3666fdd564e5952a9e24e0",
        "id": "CVE-2023-53244-a8768609",
        "signature_version": "v1",
        "target": {
            "file": "drivers/media/pci/tw68/tw68-video.c"
        },
        "digest": {
            "line_hashes": [
                "132188205382877332009836925136598164914",
                "111161534794689435439520706534911377549",
                "114861313067031862716191270218194720500",
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                "155689465068895053915836272907379866537",
                "324388695856914350101326747745087579486",
                "182814005822707178938681012531252764157",
                "291640971209214860396243082187898671311",
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                "197525132036443174943982862547397121643",
                "179553360840115315538746354393706658894",
                "2283355302179518166486068921440509077",
                "288680247218071285166558244312280637140",
                "286443797207202997640136315022185478467",
                "306235616323357276077104291020168687259",
                "27397075645066424747968249058390448025",
                "160535768802474445616450912628804001979",
                "7966248555987535729024826639830470978",
                "249529889376895448739497242877224461369",
                "36103906346781736888358287666073719277",
                "304128978298667550215291584411967458819",
                "89178678970433857132883739515156922147",
                "296161049296596516743042738724437183898",
                "5032024513036303789219706273423771159",
                "190650380079346569050234170439704888578",
                "60923546997240157410935556652982858797",
                "98057762726795341531481300557154757250",
                "31381738606393576356094679395681491079",
                "231593309624173503960291397641503310697",
                "12836040449094093204389755484965888794",
                "176529674803743739964209027301429920610",
                "111350078613017137867927517271985103181",
                "11780469891184208814658120500722125676"
            ],
            "threshold": 0.9
        },
        "signature_type": "Line",
        "deprecated": false
    },
    {
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@dcf632bca424e6ff8c8eb89c96694e7f05cd29b6",
        "id": "CVE-2023-53244-bcc718cd",
        "signature_version": "v1",
        "target": {
            "function": "tw68_buf_finish",
            "file": "drivers/media/pci/tw68/tw68-video.c"
        },
        "digest": {
            "function_hash": "264724835848455933511112270234305969205",
            "length": 294.0
        },
        "signature_type": "Function",
        "deprecated": false
    },
    {
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@3c67f49a6643d973e83968ea35806c7b5ae68b56",
        "id": "CVE-2023-53244-be5c77ec",
        "signature_version": "v1",
        "target": {
            "file": "drivers/media/pci/tw68/tw68-video.c"
        },
        "digest": {
            "line_hashes": [
                "132188205382877332009836925136598164914",
                "111161534794689435439520706534911377549",
                "114861313067031862716191270218194720500",
                "227665836887422614251072346752389691099",
                "41239567458393720150750778419023692476",
                "78249161416309519640173127067566572929",
                "155689465068895053915836272907379866537",
                "324388695856914350101326747745087579486",
                "182814005822707178938681012531252764157",
                "291640971209214860396243082187898671311",
                "233605209835373738808053018058583309210",
                "197525132036443174943982862547397121643",
                "179553360840115315538746354393706658894",
                "2283355302179518166486068921440509077",
                "288680247218071285166558244312280637140",
                "286443797207202997640136315022185478467",
                "306235616323357276077104291020168687259",
                "27397075645066424747968249058390448025",
                "160535768802474445616450912628804001979",
                "7966248555987535729024826639830470978",
                "249529889376895448739497242877224461369",
                "36103906346781736888358287666073719277",
                "304128978298667550215291584411967458819",
                "89178678970433857132883739515156922147",
                "296161049296596516743042738724437183898",
                "5032024513036303789219706273423771159",
                "190650380079346569050234170439704888578",
                "60923546997240157410935556652982858797",
                "98057762726795341531481300557154757250",
                "31381738606393576356094679395681491079",
                "231593309624173503960291397641503310697",
                "12836040449094093204389755484965888794",
                "176529674803743739964209027301429920610",
                "111350078613017137867927517271985103181",
                "11780469891184208814658120500722125676"
            ],
            "threshold": 0.9
        },
        "signature_type": "Line",
        "deprecated": false
    }
]

Git / github.com/gregkh/linux

Affected ranges

Type
GIT
Repo
https://github.com/gregkh/linux
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
1fe619a7d25218e9b9fdcce9fcac6a05cd62abed
Introduced
c9c3395d5e3dcc6daee66c6908354d47bf98cb0c
Fixed
17f2d782f18c9a49943ea723d7628da1837c9204
Introduced
df0cc57e057f18e44dac8e6c18aba47ab53202f9
Fixed
a343b0dd87b42ba9d508fbf7d0c06f744c2e0954

Affected versions

v5.*
v5.16
v5.17
v5.17-rc1
v5.17-rc2
v5.17-rc3
v5.17-rc4
v5.17-rc5
v5.17-rc6
v5.17-rc7
v5.17-rc8
v5.18
v5.18-rc1
v5.18-rc2
v5.18-rc3
v5.18-rc4
v5.18-rc5
v5.18-rc6
v5.18-rc7
v5.19
v5.19-rc1
v5.19-rc2
v5.19-rc3
v5.19-rc4
v5.19-rc5
v5.19-rc6
v5.19-rc7
v5.19-rc8
v6.*
v6.0
v6.0-rc1
v6.0-rc2
v6.0-rc3
v6.0-rc4
v6.0-rc5
v6.0-rc6
v6.0-rc7
v6.1
v6.1-rc1
v6.1-rc2
v6.1-rc3
v6.1-rc4
v6.1-rc5
v6.1-rc6
v6.1-rc7
v6.1-rc8
v6.1.1
v6.1.10
v6.1.11
v6.1.12
v6.1.13
v6.1.14
v6.1.15
v6.1.16
v6.1.17
v6.1.18
v6.1.19
v6.1.2
v6.1.20
v6.1.21
v6.1.22
v6.1.23
v6.1.24
v6.1.25
v6.1.26
v6.1.27
v6.1.28
v6.1.29
v6.1.3
v6.1.4
v6.1.5
v6.1.6
v6.1.7
v6.1.8
v6.1.9
v6.2
v6.3
v6.3-rc1
v6.3-rc2
v6.3-rc3
v6.3-rc4
v6.3-rc5
v6.3-rc6
v6.3-rc7
v6.3.1
v6.3.2
v6.3.3

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-53244.json"