CVE-2025-15468

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Source
https://cve.org/CVERecord?id=CVE-2025-15468
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-15468.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2025-15468
Downstream
Related
Published
2026-01-27T16:16:14.400Z
Modified
2026-03-15T22:51:46.393921Z
Severity
  • 5.9 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

Issue summary: If an application using the SSLCIPHERfind() function in a QUIC protocol client or server receives an unknown cipher suite from the peer, a NULL dereference occurs.

Impact summary: A NULL pointer dereference leads to abnormal termination of the running process causing Denial of Service.

Some applications call SSLCIPHERfind() from the clienthellocb callback on the cipher ID received from the peer. If this is done with an SSL object implementing the QUIC protocol, NULL pointer dereference will happen if the examined cipher ID is unknown or unsupported.

As it is not very common to call this function in applications using the QUIC protocol and the worst outcome is Denial of Service, the issue was assessed as Low severity.

The vulnerable code was introduced in the 3.2 version with the addition of the QUIC protocol support.

The FIPS modules in 3.6, 3.5, 3.4 and 3.3 are not affected by this issue, as the QUIC implementation is outside the OpenSSL FIPS module boundary.

OpenSSL 3.6, 3.5, 3.4 and 3.3 are vulnerable to this issue.

OpenSSL 3.0, 1.1.1 and 1.0.2 are not affected by this issue.

References

Affected packages

Git / github.com/openssl/openssl

Affected ranges

Type
GIT
Repo
https://github.com/openssl/openssl
Events
Introduced
4cb31128b5790819dfeea2739fbde265f71a10a2
Fixed
4601ff25acd6c2fe58a8bfe241e6c470e27b8074
Introduced
98acb6b02839c609ef5b837794e08d906d965335
Fixed
565bdcc41bbf89fcbaf962636469332689f0c9fd
Introduced
636dfadc70ce26f2473870570bfd9ec352806b1d
Fixed
67b5686b4419b4cb8caa502711c41815f5279751
Introduced
7b371d80d959ec9ab4139d09d78e83c090de9779
Fixed
c9a9e5b10105ad850b6e4d1122c645c67767c341
Fixed
1f08e54bad32843044fe8a675948d65e3b4ece65
Fixed
7c88376731c589ee5b36116c5a6e32d5ae5f7ae2
Fixed
b2539639400288a4580fe2d76247541b976bade4
Fixed
d75b309879631d45b972396ce4e5102559c64ac7
Database specific 
{
    "versions": [
        {
            "introduced": "3.3.0"
        },
        {
            "fixed": "3.3.6"
        },
        {
            "introduced": "3.4.0"
        },
        {
            "fixed": "3.4.4"
        },
        {
            "introduced": "3.5.0"
        },
        {
            "fixed": "3.5.5"
        },
        {
            "introduced": "3.6.0"
        },
        {
            "fixed": "3.6.1"
        }
    ]
}

Affected versions

3.*
3.3-POST-CLANG-FORMAT-WEBKIT
3.3-PRE-CLANG-FORMAT-WEBKIT
3.4-POST-CLANG-FORMAT-WEBKIT
3.4-PRE-CLANG-FORMAT-WEBKIT
3.5-POST-CLANG-FORMAT-WEBKIT
3.5-PRE-CLANG-FORMAT-WEBKIT
3.6-POST-CLANG-FORMAT-WEBKIT
3.6-PRE-CLANG-FORMAT-WEBKIT
openssl-3.*
openssl-3.3.0
openssl-3.3.1
openssl-3.3.2
openssl-3.3.3
openssl-3.3.4
openssl-3.3.5
openssl-3.4.0
openssl-3.4.1
openssl-3.4.2
openssl-3.4.3
openssl-3.5.0
openssl-3.5.1
openssl-3.5.2
openssl-3.5.3
openssl-3.5.4
openssl-3.6.0

Database specific

vanir_signatures 
[
    {
        "target": {
            "file": "ssl/quic/quic_impl.c"
        },
        "id": "CVE-2025-15468-2ba5ff4f",
        "digest": {
            "line_hashes": [
                "301174472499023802260295463722541748325",
                "238942074834082917347798380654656722229",
                "219113749534777150036648988684825655256"
            ],
            "threshold": 0.9
        },
        "source": "https://github.com/openssl/openssl/commit/b2539639400288a4580fe2d76247541b976bade4",
        "signature_version": "v1",
        "deprecated": false,
        "signature_type": "Line"
    },
    {
        "target": {
            "function": "ossl_quic_get_cipher_by_char",
            "file": "ssl/quic/quic_impl.c"
        },
        "id": "CVE-2025-15468-503082ce",
        "digest": {
            "function_hash": "15486123516276700958646920012673619227",
            "length": 172.0
        },
        "source": "https://github.com/openssl/openssl/commit/b2539639400288a4580fe2d76247541b976bade4",
        "signature_version": "v1",
        "deprecated": false,
        "signature_type": "Function"
    },
    {
        "target": {
            "file": "ssl/quic/quic_impl.c"
        },
        "id": "CVE-2025-15468-5a74c3f8",
        "digest": {
            "line_hashes": [
                "301174472499023802260295463722541748325",
                "238942074834082917347798380654656722229",
                "219113749534777150036648988684825655256"
            ],
            "threshold": 0.9
        },
        "source": "https://github.com/openssl/openssl/commit/1f08e54bad32843044fe8a675948d65e3b4ece65",
        "signature_version": "v1",
        "deprecated": false,
        "signature_type": "Line"
    },
    {
        "target": {
            "function": "ossl_quic_get_cipher_by_char",
            "file": "ssl/quic/quic_impl.c"
        },
        "id": "CVE-2025-15468-6262c36b",
        "digest": {
            "function_hash": "15486123516276700958646920012673619227",
            "length": 172.0
        },
        "source": "https://github.com/openssl/openssl/commit/d75b309879631d45b972396ce4e5102559c64ac7",
        "signature_version": "v1",
        "deprecated": false,
        "signature_type": "Function"
    },
    {
        "target": {
            "function": "ossl_quic_get_cipher_by_char",
            "file": "ssl/quic/quic_impl.c"
        },
        "id": "CVE-2025-15468-646f3586",
        "digest": {
            "function_hash": "15486123516276700958646920012673619227",
            "length": 172.0
        },
        "source": "https://github.com/openssl/openssl/commit/7c88376731c589ee5b36116c5a6e32d5ae5f7ae2",
        "signature_version": "v1",
        "deprecated": false,
        "signature_type": "Function"
    },
    {
        "target": {
            "function": "ossl_quic_get_cipher_by_char",
            "file": "ssl/quic/quic_impl.c"
        },
        "id": "CVE-2025-15468-ca210041",
        "digest": {
            "function_hash": "15486123516276700958646920012673619227",
            "length": 172.0
        },
        "source": "https://github.com/openssl/openssl/commit/1f08e54bad32843044fe8a675948d65e3b4ece65",
        "signature_version": "v1",
        "deprecated": false,
        "signature_type": "Function"
    },
    {
        "target": {
            "file": "ssl/quic/quic_impl.c"
        },
        "id": "CVE-2025-15468-e36f1b7d",
        "digest": {
            "line_hashes": [
                "301174472499023802260295463722541748325",
                "238942074834082917347798380654656722229",
                "219113749534777150036648988684825655256"
            ],
            "threshold": 0.9
        },
        "source": "https://github.com/openssl/openssl/commit/d75b309879631d45b972396ce4e5102559c64ac7",
        "signature_version": "v1",
        "deprecated": false,
        "signature_type": "Line"
    },
    {
        "target": {
            "file": "ssl/quic/quic_impl.c"
        },
        "id": "CVE-2025-15468-ef2255bb",
        "digest": {
            "line_hashes": [
                "301174472499023802260295463722541748325",
                "238942074834082917347798380654656722229",
                "219113749534777150036648988684825655256"
            ],
            "threshold": 0.9
        },
        "source": "https://github.com/openssl/openssl/commit/7c88376731c589ee5b36116c5a6e32d5ae5f7ae2",
        "signature_version": "v1",
        "deprecated": false,
        "signature_type": "Line"
    }
]
source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-15468.json"