CVE-2025-24970

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Source
https://nvd.nist.gov/vuln/detail/CVE-2025-24970
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-24970.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2025-24970
Aliases
Downstream
Related
Published
2025-02-10T21:57:28Z
Modified
2025-10-20T20:30:37.289210Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
SslHandler doesn't correctly validate packets which can lead to native crash when using native SSLEngine
Details

Netty, an asynchronous, event-driven network application framework, has a vulnerability starting in version 4.1.91.Final and prior to version 4.1.118.Final. When a special crafted packet is received via SslHandler it doesn't correctly handle validation of such a packet in all cases which can lead to a native crash. Version 4.1.118.Final contains a patch. As workaround its possible to either disable the usage of the native SSLEngine or change the code manually.

Database specific 
{
    "cwe_ids": [
        "CWE-20"
    ]
}
References

Affected packages

Git / github.com/netty/netty

Affected ranges

Type
GIT
Repo
https://github.com/netty/netty
Events
Introduced
d773f37e3422b8bc38429bbde94583173c3b7e4a
Fixed
87f40725155b2f89adfde68c7732f97c153676c4

Affected versions

netty-4.*

netty-4.1.100.Final
netty-4.1.101.Final
netty-4.1.102.Final
netty-4.1.103.Final
netty-4.1.104.Final
netty-4.1.105.Final
netty-4.1.106.Final
netty-4.1.107.Final
netty-4.1.108.Final
netty-4.1.109.Final
netty-4.1.110.Final
netty-4.1.111.Final
netty-4.1.112.Final
netty-4.1.113.Final
netty-4.1.114.Final
netty-4.1.115.Final
netty-4.1.116.Final
netty-4.1.117.Final
netty-4.1.91.Final
netty-4.1.92.Final
netty-4.1.93.Final
netty-4.1.94.Final
netty-4.1.95.Final
netty-4.1.96.Final
netty-4.1.97.Final
netty-4.1.98.Final
netty-4.1.99.Final

Database specific

vanir_signatures

[
    {
        "digest": {
            "function_hash": "327196958911654775033233893523275684115",
            "length": 4637.0
        },
        "target": {
            "function": "unwrap",
            "file": "handler/src/main/java/io/netty/handler/ssl/ReferenceCountedOpenSslEngine.java"
        },
        "signature_type": "Function",
        "deprecated": false,
        "source": "https://github.com/netty/netty/commit/87f40725155b2f89adfde68c7732f97c153676c4",
        "signature_version": "v1",
        "id": "CVE-2025-24970-228f3d02"
    },
    {
        "digest": {
            "function_hash": "35961428334426579318057934398862523417",
            "length": 463.0
        },
        "target": {
            "function": "getEncryptedPacketLength",
            "file": "handler/src/main/java/io/netty/handler/ssl/SslUtils.java"
        },
        "signature_type": "Function",
        "deprecated": false,
        "source": "https://github.com/netty/netty/commit/87f40725155b2f89adfde68c7732f97c153676c4",
        "signature_version": "v1",
        "id": "CVE-2025-24970-294fa090"
    },
    {
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
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                "66307236719238303910096912021913734331",
                "105022341408594805260448965249385112939",
                "298975607911669047145762000111150490084",
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                "223201046909084534404342400163692306576"
            ]
        },
        "target": {
            "file": "handler/src/main/java/io/netty/handler/ssl/SslUtils.java"
        },
        "signature_type": "Line",
        "deprecated": false,
        "source": "https://github.com/netty/netty/commit/87f40725155b2f89adfde68c7732f97c153676c4",
        "signature_version": "v1",
        "id": "CVE-2025-24970-2a3f3972"
    },
    {
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "61847757038835109877109668388264418431",
                "56798105024475689476437797826150727290",
                "244903697137627885139415911912138090441"
            ]
        },
        "target": {
            "file": "handler/src/main/java/io/netty/handler/ssl/ReferenceCountedOpenSslEngine.java"
        },
        "signature_type": "Line",
        "deprecated": false,
        "source": "https://github.com/netty/netty/commit/87f40725155b2f89adfde68c7732f97c153676c4",
        "signature_version": "v1",
        "id": "CVE-2025-24970-cd0e8eda"
    },
    {
        "digest": {
            "function_hash": "194913597819912680929490010766117765141",
            "length": 1339.0
        },
        "target": {
            "function": "getEncryptedPacketLength",
            "file": "handler/src/main/java/io/netty/handler/ssl/SslUtils.java"
        },
        "signature_type": "Function",
        "deprecated": false,
        "source": "https://github.com/netty/netty/commit/87f40725155b2f89adfde68c7732f97c153676c4",
        "signature_version": "v1",
        "id": "CVE-2025-24970-eb7c333f"
    },
    {
        "digest": {
            "function_hash": "261304627989985208892904449465046704902",
            "length": 1064.0
        },
        "target": {
            "function": "getEncryptedPacketLength",
            "file": "handler/src/main/java/io/netty/handler/ssl/SslUtils.java"
        },
        "signature_type": "Function",
        "deprecated": false,
        "source": "https://github.com/netty/netty/commit/87f40725155b2f89adfde68c7732f97c153676c4",
        "signature_version": "v1",
        "id": "CVE-2025-24970-f95553ac"
    }
]