CVE-2024-4603

See a problem?
Please try reporting it to the source first.
Source
https://cve.org/CVERecord?id=CVE-2024-4603
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-4603.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2024-4603
Downstream
Related
Published
2024-05-16T15:21:20.050Z
Modified
2026-07-14T15:56:46.581170Z
Severity
  • 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L CVSS Calculator
Summary
Excessive time spent checking DSA keys and parameters
Details

Issue summary: Checking excessively long DSA keys or parameters may be very slow.

Impact summary: Applications that use the functions EVPPKEYparamcheck() or EVPPKEYpubliccheck() to check a DSA public key or DSA parameters may experience long delays. Where the key or parameters that are being checked have been obtained from an untrusted source this may lead to a Denial of Service.

The functions EVPPKEYparamcheck() or EVPPKEYpubliccheck() perform various checks on DSA parameters. Some of those computations take a long time if the modulus (p parameter) is too large.

Trying to use a very large modulus is slow and OpenSSL will not allow using public keys with a modulus which is over 10,000 bits in length for signature verification. However the key and parameter check functions do not limit the modulus size when performing the checks.

An application that calls EVPPKEYparamcheck() or EVPPKEYpubliccheck() and supplies a key or parameters obtained from an untrusted source could be vulnerable to a Denial of Service attack.

These functions are not called by OpenSSL itself on untrusted DSA keys so only applications that directly call these functions may be vulnerable.

Also vulnerable are the OpenSSL pkey and pkeyparam command line applications when using the -check option.

The OpenSSL SSL/TLS implementation is not affected by this issue.

The OpenSSL 3.0 and 3.1 FIPS providers are affected by this issue.

Database specific 
{
    "cwe_ids": [
        "CWE-606"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/4xxx/CVE-2024-4603.json",
    "cna_assigner": "openssl"
}
References

Affected packages

Git / github.com/openssl/openssl

Affected ranges

Type
GIT
Repo
https://github.com/openssl/openssl
Events
Introduced
89cd17a031e022211684eb7eb41190cf1910f9fa
Introduced
a92271e03a8d0dee507b6f1e7f49512568b2c7ad
Introduced
cf2877791ce7508684109664f467c9e40987692f
Introduced
4cb31128b5790819dfeea2739fbde265f71a10a2
Fixed
9cff14fd97814baf8a9a07d8447960a64d616ada
Fixed
8ffa005476942fc89d247448f95077c104efadf1
Fixed
cd1e967483577ec4a42ebe75942894c10655e2b6
Fixed
db2ac4f6ebd8f3d7b2a60882992fbea1269114e2
Fixed
3559e868e58005d15c6013a0c1fd832e51c73397
Fixed
53ea06486d296b890d565fb971b2764fcd826e7e
Fixed
9c39b3858091c152f52513c066ff2c5a47969f0d
Fixed
da343d0605c826ef197aceedc67e8e04f065f740
Database specific 
{
    "source": [
        "AFFECTED_FIELD",
        "REFERENCES"
    ],
    "extracted_events": [
        {
            "introduced": "3.0.0"
        },
        {
            "fixed": "3.0.14"
        },
        {
            "introduced": "3.1.0"
        },
        {
            "fixed": "3.1.6"
        },
        {
            "introduced": "3.2.0"
        },
        {
            "fixed": "3.2.2"
        },
        {
            "introduced": "3.3.0"
        },
        {
            "fixed": "3.3.1"
        }
    ]
}

Affected versions

openssl-3.*
openssl-3.0.0
openssl-3.0.1
openssl-3.0.10
openssl-3.0.11
openssl-3.0.12
openssl-3.0.13
openssl-3.0.2
openssl-3.0.3
openssl-3.0.4
openssl-3.0.5
openssl-3.0.6
openssl-3.0.7
openssl-3.0.8
openssl-3.0.9
openssl-3.1.0
openssl-3.1.1
openssl-3.1.2
openssl-3.1.3
openssl-3.1.4
openssl-3.1.5
openssl-3.2.0
openssl-3.2.1
openssl-3.3.0

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-4603.json"
vanir_signatures_modified 
"2026-07-14T15:56:46Z"
vanir_signatures 
[
    {
        "deprecated": false,
        "signature_type": "Function",
        "source": "https://github.com/openssl/openssl/commit/9c39b3858091c152f52513c066ff2c5a47969f0d",
        "digest": {
            "length": 152.0,
            "function_hash": "219663322568032758739344610759529853203"
        },
        "signature_version": "v1",
        "target": {
            "function": "ossl_dsa_check_pub_key",
            "file": "crypto/dsa/dsa_check.c"
        },
        "id": "CVE-2024-4603-0f1dc7ae"
    },
    {
        "deprecated": false,
        "signature_type": "Function",
        "source": "https://github.com/openssl/openssl/commit/9c39b3858091c152f52513c066ff2c5a47969f0d",
        "digest": {
            "length": 301.0,
            "function_hash": "307444583308020639014663628111494753137"
        },
        "signature_version": "v1",
        "target": {
            "function": "ossl_dsa_check_params",
            "file": "crypto/dsa/dsa_check.c"
        },
        "id": "CVE-2024-4603-27dbfa1b"
    },
    {
        "deprecated": false,
        "signature_type": "Function",
        "source": "https://github.com/openssl/openssl/commit/3559e868e58005d15c6013a0c1fd832e51c73397",
        "digest": {
            "length": 187.0,
            "function_hash": "63303990667448414431624506292711823034"
        },
        "signature_version": "v1",
        "target": {
            "function": "ossl_dsa_check_priv_key",
            "file": "crypto/dsa/dsa_check.c"
        },
        "id": "CVE-2024-4603-287eb402"
    },
    {
        "deprecated": false,
        "signature_type": "Function",
        "source": "https://github.com/openssl/openssl/commit/53ea06486d296b890d565fb971b2764fcd826e7e",
        "digest": {
            "length": 521.0,
            "function_hash": "236650307775533617446147756765254676295"
        },
        "signature_version": "v1",
        "target": {
            "function": "ossl_dsa_check_pairwise",
            "file": "crypto/dsa/dsa_check.c"
        },
        "id": "CVE-2024-4603-302cbd02"
    },
    {
        "deprecated": false,
        "signature_type": "Function",
        "source": "https://github.com/openssl/openssl/commit/9c39b3858091c152f52513c066ff2c5a47969f0d",
        "digest": {
            "length": 521.0,
            "function_hash": "236650307775533617446147756765254676295"
        },
        "signature_version": "v1",
        "target": {
            "function": "ossl_dsa_check_pairwise",
            "file": "crypto/dsa/dsa_check.c"
        },
        "id": "CVE-2024-4603-32202760"
    },
    {
        "deprecated": false,
        "signature_type": "Function",
        "source": "https://github.com/openssl/openssl/commit/da343d0605c826ef197aceedc67e8e04f065f740",
        "digest": {
            "length": 301.0,
            "function_hash": "307444583308020639014663628111494753137"
        },
        "signature_version": "v1",
        "target": {
            "function": "ossl_dsa_check_params",
            "file": "crypto/dsa/dsa_check.c"
        },
        "id": "CVE-2024-4603-4187310f"
    },
    {
        "deprecated": false,
        "signature_type": "Line",
        "source": "https://github.com/openssl/openssl/commit/9c39b3858091c152f52513c066ff2c5a47969f0d",
        "digest": {
            "line_hashes": [
                "243150946184705416718670416235183356916",
                "180349981022369179925439192885659650714",
                "8106935018977536703215056308323611634",
                "137549371667215865797354773677897919745",
                "178836937939992247904524348378080056735",
                "278097579510097664881660522629381390399",
                "90181849990248972169943799142956395004",
                "74978584338083252776430056065644879326",
                "76169492372411342605408504353923724513",
                "55983040006459865879982821551074916929",
                "326410872419412397963066451556847399168",
                "83139677653707575113776342785214859276",
                "328344147515312161050901724342349399519",
                "12296000804367969784194674287167751474",
                "213080590428735873312882663715853986836",
                "18090696423168841971202238792296069525",
                "249365869365766579695386042359288790320",
                "159149726014041690445969824550432676451",
                "256845625190901066519403965942137550781",
                "131307540412419780483250265659272263156",
                "312611335098158983336659862104821095064",
                "128039915356107327974349445235373709199",
                "32274130780543847983305058081411750891"
            ],
            "threshold": 0.9
        },
        "signature_version": "v1",
        "target": {
            "file": "crypto/dsa/dsa_check.c"
        },
        "id": "CVE-2024-4603-47776a39"
    },
    {
        "deprecated": false,
        "signature_type": "Function",
        "source": "https://github.com/openssl/openssl/commit/da343d0605c826ef197aceedc67e8e04f065f740",
        "digest": {
            "length": 521.0,
            "function_hash": "236650307775533617446147756765254676295"
        },
        "signature_version": "v1",
        "target": {
            "function": "ossl_dsa_check_pairwise",
            "file": "crypto/dsa/dsa_check.c"
        },
        "id": "CVE-2024-4603-4dbed64f"
    },
    {
        "deprecated": false,
        "signature_type": "Function",
        "source": "https://github.com/openssl/openssl/commit/3559e868e58005d15c6013a0c1fd832e51c73397",
        "digest": {
            "length": 301.0,
            "function_hash": "307444583308020639014663628111494753137"
        },
        "signature_version": "v1",
        "target": {
            "function": "ossl_dsa_check_params",
            "file": "crypto/dsa/dsa_check.c"
        },
        "id": "CVE-2024-4603-6b2b3cbf"
    },
    {
        "deprecated": false,
        "signature_type": "Line",
        "source": "https://github.com/openssl/openssl/commit/da343d0605c826ef197aceedc67e8e04f065f740",
        "digest": {
            "line_hashes": [
                "243150946184705416718670416235183356916",
                "180349981022369179925439192885659650714",
                "8106935018977536703215056308323611634",
                "137549371667215865797354773677897919745",
                "178836937939992247904524348378080056735",
                "278097579510097664881660522629381390399",
                "90181849990248972169943799142956395004",
                "74978584338083252776430056065644879326",
                "76169492372411342605408504353923724513",
                "55983040006459865879982821551074916929",
                "326410872419412397963066451556847399168",
                "83139677653707575113776342785214859276",
                "328344147515312161050901724342349399519",
                "12296000804367969784194674287167751474",
                "213080590428735873312882663715853986836",
                "18090696423168841971202238792296069525",
                "249365869365766579695386042359288790320",
                "159149726014041690445969824550432676451",
                "256845625190901066519403965942137550781",
                "131307540412419780483250265659272263156",
                "312611335098158983336659862104821095064",
                "128039915356107327974349445235373709199",
                "32274130780543847983305058081411750891"
            ],
            "threshold": 0.9
        },
        "signature_version": "v1",
        "target": {
            "file": "crypto/dsa/dsa_check.c"
        },
        "id": "CVE-2024-4603-6f6a722b"
    },
    {
        "deprecated": false,
        "signature_type": "Line",
        "source": "https://github.com/openssl/openssl/commit/53ea06486d296b890d565fb971b2764fcd826e7e",
        "digest": {
            "line_hashes": [
                "243150946184705416718670416235183356916",
                "180349981022369179925439192885659650714",
                "8106935018977536703215056308323611634",
                "137549371667215865797354773677897919745",
                "178836937939992247904524348378080056735",
                "278097579510097664881660522629381390399",
                "90181849990248972169943799142956395004",
                "74978584338083252776430056065644879326",
                "76169492372411342605408504353923724513",
                "55983040006459865879982821551074916929",
                "326410872419412397963066451556847399168",
                "83139677653707575113776342785214859276",
                "328344147515312161050901724342349399519",
                "12296000804367969784194674287167751474",
                "213080590428735873312882663715853986836",
                "18090696423168841971202238792296069525",
                "249365869365766579695386042359288790320",
                "159149726014041690445969824550432676451",
                "256845625190901066519403965942137550781",
                "131307540412419780483250265659272263156",
                "312611335098158983336659862104821095064",
                "128039915356107327974349445235373709199",
                "32274130780543847983305058081411750891"
            ],
            "threshold": 0.9
        },
        "signature_version": "v1",
        "target": {
            "file": "crypto/dsa/dsa_check.c"
        },
        "id": "CVE-2024-4603-768ad877"
    },
    {
        "deprecated": false,
        "signature_type": "Function",
        "source": "https://github.com/openssl/openssl/commit/53ea06486d296b890d565fb971b2764fcd826e7e",
        "digest": {
            "length": 187.0,
            "function_hash": "63303990667448414431624506292711823034"
        },
        "signature_version": "v1",
        "target": {
            "function": "ossl_dsa_check_priv_key",
            "file": "crypto/dsa/dsa_check.c"
        },
        "id": "CVE-2024-4603-80202d0f"
    },
    {
        "deprecated": false,
        "signature_type": "Function",
        "source": "https://github.com/openssl/openssl/commit/3559e868e58005d15c6013a0c1fd832e51c73397",
        "digest": {
            "length": 152.0,
            "function_hash": "219663322568032758739344610759529853203"
        },
        "signature_version": "v1",
        "target": {
            "function": "ossl_dsa_check_pub_key",
            "file": "crypto/dsa/dsa_check.c"
        },
        "id": "CVE-2024-4603-98fe2189"
    },
    {
        "deprecated": false,
        "signature_type": "Function",
        "source": "https://github.com/openssl/openssl/commit/3559e868e58005d15c6013a0c1fd832e51c73397",
        "digest": {
            "length": 152.0,
            "function_hash": "219663322568032758739344610759529853203"
        },
        "signature_version": "v1",
        "target": {
            "function": "ossl_dsa_check_pub_key_partial",
            "file": "crypto/dsa/dsa_check.c"
        },
        "id": "CVE-2024-4603-9aa2870f"
    },
    {
        "deprecated": false,
        "signature_type": "Function",
        "source": "https://github.com/openssl/openssl/commit/53ea06486d296b890d565fb971b2764fcd826e7e",
        "digest": {
            "length": 152.0,
            "function_hash": "219663322568032758739344610759529853203"
        },
        "signature_version": "v1",
        "target": {
            "function": "ossl_dsa_check_pub_key_partial",
            "file": "crypto/dsa/dsa_check.c"
        },
        "id": "CVE-2024-4603-a4ba5364"
    },
    {
        "deprecated": false,
        "signature_type": "Function",
        "source": "https://github.com/openssl/openssl/commit/da343d0605c826ef197aceedc67e8e04f065f740",
        "digest": {
            "length": 187.0,
            "function_hash": "63303990667448414431624506292711823034"
        },
        "signature_version": "v1",
        "target": {
            "function": "ossl_dsa_check_priv_key",
            "file": "crypto/dsa/dsa_check.c"
        },
        "id": "CVE-2024-4603-a5c9e065"
    },
    {
        "deprecated": false,
        "signature_type": "Function",
        "source": "https://github.com/openssl/openssl/commit/da343d0605c826ef197aceedc67e8e04f065f740",
        "digest": {
            "length": 152.0,
            "function_hash": "219663322568032758739344610759529853203"
        },
        "signature_version": "v1",
        "target": {
            "function": "ossl_dsa_check_pub_key_partial",
            "file": "crypto/dsa/dsa_check.c"
        },
        "id": "CVE-2024-4603-b1dd08ad"
    },
    {
        "deprecated": false,
        "signature_type": "Function",
        "source": "https://github.com/openssl/openssl/commit/53ea06486d296b890d565fb971b2764fcd826e7e",
        "digest": {
            "length": 152.0,
            "function_hash": "219663322568032758739344610759529853203"
        },
        "signature_version": "v1",
        "target": {
            "function": "ossl_dsa_check_pub_key",
            "file": "crypto/dsa/dsa_check.c"
        },
        "id": "CVE-2024-4603-c032044a"
    },
    {
        "deprecated": false,
        "signature_type": "Function",
        "source": "https://github.com/openssl/openssl/commit/3559e868e58005d15c6013a0c1fd832e51c73397",
        "digest": {
            "length": 521.0,
            "function_hash": "236650307775533617446147756765254676295"
        },
        "signature_version": "v1",
        "target": {
            "function": "ossl_dsa_check_pairwise",
            "file": "crypto/dsa/dsa_check.c"
        },
        "id": "CVE-2024-4603-c2f70c2e"
    },
    {
        "deprecated": false,
        "signature_type": "Function",
        "source": "https://github.com/openssl/openssl/commit/da343d0605c826ef197aceedc67e8e04f065f740",
        "digest": {
            "length": 152.0,
            "function_hash": "219663322568032758739344610759529853203"
        },
        "signature_version": "v1",
        "target": {
            "function": "ossl_dsa_check_pub_key",
            "file": "crypto/dsa/dsa_check.c"
        },
        "id": "CVE-2024-4603-c98162c3"
    },
    {
        "deprecated": false,
        "signature_type": "Line",
        "source": "https://github.com/openssl/openssl/commit/3559e868e58005d15c6013a0c1fd832e51c73397",
        "digest": {
            "line_hashes": [
                "243150946184705416718670416235183356916",
                "180349981022369179925439192885659650714",
                "8106935018977536703215056308323611634",
                "137549371667215865797354773677897919745",
                "178836937939992247904524348378080056735",
                "278097579510097664881660522629381390399",
                "90181849990248972169943799142956395004",
                "74978584338083252776430056065644879326",
                "76169492372411342605408504353923724513",
                "55983040006459865879982821551074916929",
                "326410872419412397963066451556847399168",
                "83139677653707575113776342785214859276",
                "328344147515312161050901724342349399519",
                "12296000804367969784194674287167751474",
                "213080590428735873312882663715853986836",
                "18090696423168841971202238792296069525",
                "249365869365766579695386042359288790320",
                "159149726014041690445969824550432676451",
                "256845625190901066519403965942137550781",
                "131307540412419780483250265659272263156",
                "312611335098158983336659862104821095064",
                "128039915356107327974349445235373709199",
                "32274130780543847983305058081411750891"
            ],
            "threshold": 0.9
        },
        "signature_version": "v1",
        "target": {
            "file": "crypto/dsa/dsa_check.c"
        },
        "id": "CVE-2024-4603-cb9b89a3"
    },
    {
        "deprecated": false,
        "signature_type": "Function",
        "source": "https://github.com/openssl/openssl/commit/9c39b3858091c152f52513c066ff2c5a47969f0d",
        "digest": {
            "length": 187.0,
            "function_hash": "63303990667448414431624506292711823034"
        },
        "signature_version": "v1",
        "target": {
            "function": "ossl_dsa_check_priv_key",
            "file": "crypto/dsa/dsa_check.c"
        },
        "id": "CVE-2024-4603-de0add79"
    },
    {
        "deprecated": false,
        "signature_type": "Function",
        "source": "https://github.com/openssl/openssl/commit/9c39b3858091c152f52513c066ff2c5a47969f0d",
        "digest": {
            "length": 152.0,
            "function_hash": "219663322568032758739344610759529853203"
        },
        "signature_version": "v1",
        "target": {
            "function": "ossl_dsa_check_pub_key_partial",
            "file": "crypto/dsa/dsa_check.c"
        },
        "id": "CVE-2024-4603-defd9f3b"
    },
    {
        "deprecated": false,
        "signature_type": "Function",
        "source": "https://github.com/openssl/openssl/commit/53ea06486d296b890d565fb971b2764fcd826e7e",
        "digest": {
            "length": 301.0,
            "function_hash": "307444583308020639014663628111494753137"
        },
        "signature_version": "v1",
        "target": {
            "function": "ossl_dsa_check_params",
            "file": "crypto/dsa/dsa_check.c"
        },
        "id": "CVE-2024-4603-e6a5924e"
    }
]