gsd-2023-3446
Vulnerability from gsd
Modified
2023-12-13 01:20
Details
Issue summary: Checking excessively long DH keys or parameters may be very slow.
Impact summary: Applications that use the functions DH_check(), DH_check_ex()
or EVP_PKEY_param_check() to check a DH key or DH 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 function DH_check() performs various checks on DH parameters. One of those
checks confirms that the modulus ('p' parameter) is not too large. Trying to use
a very large modulus is slow and OpenSSL will not normally use a modulus which
is over 10,000 bits in length.
However the DH_check() function checks numerous aspects of the key or parameters
that have been supplied. Some of those checks use the supplied modulus value
even if it has already been found to be too large.
An application that calls DH_check() and supplies a key or parameters obtained
from an untrusted source could be vulernable to a Denial of Service attack.
The function DH_check() is itself called by a number of other OpenSSL functions.
An application calling any of those other functions may similarly be affected.
The other functions affected by this are DH_check_ex() and
EVP_PKEY_param_check().
Also vulnerable are the OpenSSL dhparam 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 not affected by this issue.
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2023-3446",
"id": "GSD-2023-3446"
},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
"osvSchema": {
"aliases": [
"CVE-2023-3446"
],
"details": "Issue summary: Checking excessively long DH keys or parameters may be very slow.\n\nImpact summary: Applications that use the functions DH_check(), DH_check_ex()\nor EVP_PKEY_param_check() to check a DH key or DH parameters may experience long\ndelays. Where the key or parameters that are being checked have been obtained\nfrom an untrusted source this may lead to a Denial of Service.\n\nThe function DH_check() performs various checks on DH parameters. One of those\nchecks confirms that the modulus (\u0027p\u0027 parameter) is not too large. Trying to use\na very large modulus is slow and OpenSSL will not normally use a modulus which\nis over 10,000 bits in length.\n\nHowever the DH_check() function checks numerous aspects of the key or parameters\nthat have been supplied. Some of those checks use the supplied modulus value\neven if it has already been found to be too large.\n\nAn application that calls DH_check() and supplies a key or parameters obtained\nfrom an untrusted source could be vulernable to a Denial of Service attack.\n\nThe function DH_check() is itself called by a number of other OpenSSL functions.\nAn application calling any of those other functions may similarly be affected.\nThe other functions affected by this are DH_check_ex() and\nEVP_PKEY_param_check().\n\nAlso vulnerable are the OpenSSL dhparam and pkeyparam command line applications\nwhen using the \u0027-check\u0027 option.\n\nThe OpenSSL SSL/TLS implementation is not affected by this issue.\nThe OpenSSL 3.0 and 3.1 FIPS providers are not affected by this issue.",
"id": "GSD-2023-3446",
"modified": "2023-12-13T01:20:55.205209Z",
"schema_version": "1.4.0"
}
},
"namespaces": {
"cve.org": {
"CVE_data_meta": {
"ASSIGNER": "openssl-security@openssl.org",
"ID": "CVE-2023-3446",
"STATE": "PUBLIC"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "OpenSSL",
"version": {
"version_data": [
{
"version_affected": "\u003c",
"version_name": "3.1.0",
"version_value": "3.1.2"
},
{
"version_affected": "\u003c",
"version_name": "3.0.0",
"version_value": "3.0.10"
},
{
"version_affected": "\u003c",
"version_name": "1.1.1",
"version_value": "1.1.1v"
},
{
"version_affected": "\u003c",
"version_name": "1.0.2",
"version_value": "1.0.2zi"
}
]
}
}
]
},
"vendor_name": "OpenSSL"
}
]
}
},
"credits": [
{
"lang": "en",
"value": "OSSfuzz"
},
{
"lang": "en",
"value": "Matt Caswell"
}
],
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "Issue summary: Checking excessively long DH keys or parameters may be very slow.\n\nImpact summary: Applications that use the functions DH_check(), DH_check_ex()\nor EVP_PKEY_param_check() to check a DH key or DH parameters may experience long\ndelays. Where the key or parameters that are being checked have been obtained\nfrom an untrusted source this may lead to a Denial of Service.\n\nThe function DH_check() performs various checks on DH parameters. One of those\nchecks confirms that the modulus (\u0027p\u0027 parameter) is not too large. Trying to use\na very large modulus is slow and OpenSSL will not normally use a modulus which\nis over 10,000 bits in length.\n\nHowever the DH_check() function checks numerous aspects of the key or parameters\nthat have been supplied. Some of those checks use the supplied modulus value\neven if it has already been found to be too large.\n\nAn application that calls DH_check() and supplies a key or parameters obtained\nfrom an untrusted source could be vulernable to a Denial of Service attack.\n\nThe function DH_check() is itself called by a number of other OpenSSL functions.\nAn application calling any of those other functions may similarly be affected.\nThe other functions affected by this are DH_check_ex() and\nEVP_PKEY_param_check().\n\nAlso vulnerable are the OpenSSL dhparam and pkeyparam command line applications\nwhen using the \u0027-check\u0027 option.\n\nThe OpenSSL SSL/TLS implementation is not affected by this issue.\nThe OpenSSL 3.0 and 3.1 FIPS providers are not affected by this issue."
}
]
},
"generator": {
"engine": "Vulnogram 0.1.0-dev"
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "Excessive Iteration"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://www.openssl.org/news/secadv/20230719.txt",
"refsource": "MISC",
"url": "https://www.openssl.org/news/secadv/20230719.txt"
},
{
"name": "https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=fc9867c1e03c22ebf56943be205202e576aabf23",
"refsource": "MISC",
"url": "https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=fc9867c1e03c22ebf56943be205202e576aabf23"
},
{
"name": "https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=1fa20cf2f506113c761777127a38bce5068740eb",
"refsource": "MISC",
"url": "https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=1fa20cf2f506113c761777127a38bce5068740eb"
},
{
"name": "https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=8780a896543a654e757db1b9396383f9d8095528",
"refsource": "MISC",
"url": "https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=8780a896543a654e757db1b9396383f9d8095528"
},
{
"name": "https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=9a0a4d3c1e7138915563c0df4fe6a3f9377b839c",
"refsource": "MISC",
"url": "https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=9a0a4d3c1e7138915563c0df4fe6a3f9377b839c"
},
{
"name": "http://www.openwall.com/lists/oss-security/2023/07/19/4",
"refsource": "MISC",
"url": "http://www.openwall.com/lists/oss-security/2023/07/19/4"
},
{
"name": "http://www.openwall.com/lists/oss-security/2023/07/19/5",
"refsource": "MISC",
"url": "http://www.openwall.com/lists/oss-security/2023/07/19/5"
},
{
"name": "http://www.openwall.com/lists/oss-security/2023/07/19/6",
"refsource": "MISC",
"url": "http://www.openwall.com/lists/oss-security/2023/07/19/6"
},
{
"name": "http://www.openwall.com/lists/oss-security/2023/07/31/1",
"refsource": "MISC",
"url": "http://www.openwall.com/lists/oss-security/2023/07/31/1"
},
{
"name": "https://security.netapp.com/advisory/ntap-20230803-0011/",
"refsource": "MISC",
"url": "https://security.netapp.com/advisory/ntap-20230803-0011/"
},
{
"name": "https://lists.debian.org/debian-lts-announce/2023/08/msg00019.html",
"refsource": "MISC",
"url": "https://lists.debian.org/debian-lts-announce/2023/08/msg00019.html"
},
{
"name": "https://security.gentoo.org/glsa/202402-08",
"refsource": "MISC",
"url": "https://security.gentoo.org/glsa/202402-08"
}
]
},
"source": {
"discovery": "UNKNOWN"
}
},
"gitlab.com": {
"advisories": [
{
"affected_range": "=1.0.2||\u003e=3.0.0 \u003c=3.1.1",
"affected_versions": "Version 1.0.2, all versions starting from 3.0.0 up to 3.1.1",
"cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
"cwe_ids": [
"CWE-1035",
"CWE-1333",
"CWE-937"
],
"date": "2023-08-16",
"description": "Issue summary: Checking excessively long DH keys or parameters may be very slow.\n\nImpact summary: Applications that use the functions DH_check(), DH_check_ex()\nor EVP_PKEY_param_check() to check a DH key or DH parameters may experience long\ndelays. Where the key or parameters that are being checked have been obtained\nfrom an untrusted source this may lead to a Denial of Service.\n\nThe function DH_check() performs various checks on DH parameters. One of those\nchecks confirms that the modulus (\u0027p\u0027 parameter) is not too large. Trying to use\na very large modulus is slow and OpenSSL will not normally use a modulus which\nis over 10,000 bits in length.\n\nHowever the DH_check() function checks numerous aspects of the key or parameters\nthat have been supplied. Some of those checks use the supplied modulus value\neven if it has already been found to be too large.\n\nAn application that calls DH_check() and supplies a key or parameters obtained\nfrom an untrusted source could be vulernable to a Denial of Service attack.\n\nThe function DH_check() is itself called by a number of other OpenSSL functions.\nAn application calling any of those other functions may similarly be affected.\nThe other functions affected by this are DH_check_ex() and\nEVP_PKEY_param_check().\n\nAlso vulnerable are the OpenSSL dhparam and pkeyparam command line applications\nwhen using the \u0027-check\u0027 option.\n\nThe OpenSSL SSL/TLS implementation is not affected by this issue.\nThe OpenSSL 3.0 and 3.1 FIPS providers are not affected by this issue.",
"fixed_versions": [
"1.0.2u",
"3.1.2"
],
"identifier": "CVE-2023-3446",
"identifiers": [
"CVE-2023-3446"
],
"not_impacted": "All versions before 1.0.2, all versions after 1.0.2 before 3.0.0, all versions after 3.1.1",
"package_slug": "conan/openssl",
"pubdate": "2023-07-19",
"solution": "Upgrade to versions 1.0.2u, 3.1.2 or above.",
"title": "Inefficient Regular Expression Complexity",
"urls": [
"https://nvd.nist.gov/vuln/detail/CVE-2023-3446",
"https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=fc9867c1e03c22ebf56943be205202e576aabf23",
"https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=8780a896543a654e757db1b9396383f9d8095528",
"https://www.openssl.org/news/secadv/20230719.txt",
"https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=9a0a4d3c1e7138915563c0df4fe6a3f9377b839c",
"https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=1fa20cf2f506113c761777127a38bce5068740eb",
"http://www.openwall.com/lists/oss-security/2023/07/19/5",
"http://www.openwall.com/lists/oss-security/2023/07/19/4",
"http://www.openwall.com/lists/oss-security/2023/07/19/6"
],
"uuid": "c1ad6573-2a06-4050-be30-150c4626ad6e"
}
]
},
"nvd.nist.gov": {
"cve": {
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:openssl:openssl:1.0.2:-:*:*:*:*:*:*",
"matchCriteriaId": "CF0E6EB1-D656-458E-82B6-8C1ABDC13CB9",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:openssl:openssl:1.1.1:-:*:*:*:*:*:*",
"matchCriteriaId": "A8C84061-63BE-49F6-B2F0-D96847E755E0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:openssl:openssl:3.0.0:-:*:*:*:*:*:*",
"matchCriteriaId": "07D64A21-359E-40B7-8636-7E76D7466263",
"vulnerable": true
},
{
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"matchCriteriaId": "0CAAEE49-4FD0-4162-B635-4488BEC5DDC9",
"vulnerable": true
},
{
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"matchCriteriaId": "69EAFE3B-C2C7-4092-92A8-529512438B06",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Issue summary: Checking excessively long DH keys or parameters may be very slow.\n\nImpact summary: Applications that use the functions DH_check(), DH_check_ex()\nor EVP_PKEY_param_check() to check a DH key or DH parameters may experience long\ndelays. Where the key or parameters that are being checked have been obtained\nfrom an untrusted source this may lead to a Denial of Service.\n\nThe function DH_check() performs various checks on DH parameters. One of those\nchecks confirms that the modulus (\u0027p\u0027 parameter) is not too large. Trying to use\na very large modulus is slow and OpenSSL will not normally use a modulus which\nis over 10,000 bits in length.\n\nHowever the DH_check() function checks numerous aspects of the key or parameters\nthat have been supplied. Some of those checks use the supplied modulus value\neven if it has already been found to be too large.\n\nAn application that calls DH_check() and supplies a key or parameters obtained\nfrom an untrusted source could be vulernable to a Denial of Service attack.\n\nThe function DH_check() is itself called by a number of other OpenSSL functions.\nAn application calling any of those other functions may similarly be affected.\nThe other functions affected by this are DH_check_ex() and\nEVP_PKEY_param_check().\n\nAlso vulnerable are the OpenSSL dhparam and pkeyparam command line applications\nwhen using the \u0027-check\u0027 option.\n\nThe OpenSSL SSL/TLS implementation is not affected by this issue.\nThe OpenSSL 3.0 and 3.1 FIPS providers are not affected by this issue."
}
],
"id": "CVE-2023-3446",
"lastModified": "2024-02-04T09:15:09.900",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "LOW",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 1.4,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2023-07-19T12:15:10.003",
"references": [
{
"source": "openssl-security@openssl.org",
"tags": [
"Mailing List",
"Third Party Advisory"
],
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},
{
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},
{
"source": "openssl-security@openssl.org",
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"Vendor Advisory"
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"url": "https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=1fa20cf2f506113c761777127a38bce5068740eb"
},
{
"source": "openssl-security@openssl.org",
"tags": [
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"Vendor Advisory"
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"url": "https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=8780a896543a654e757db1b9396383f9d8095528"
},
{
"source": "openssl-security@openssl.org",
"tags": [
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"Vendor Advisory"
],
"url": "https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=9a0a4d3c1e7138915563c0df4fe6a3f9377b839c"
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{
"source": "openssl-security@openssl.org",
"tags": [
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"url": "https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=fc9867c1e03c22ebf56943be205202e576aabf23"
},
{
"source": "openssl-security@openssl.org",
"tags": [
"Mailing List",
"Third Party Advisory"
],
"url": "https://lists.debian.org/debian-lts-announce/2023/08/msg00019.html"
},
{
"source": "openssl-security@openssl.org",
"url": "https://security.gentoo.org/glsa/202402-08"
},
{
"source": "openssl-security@openssl.org",
"tags": [
"Third Party Advisory"
],
"url": "https://security.netapp.com/advisory/ntap-20230803-0011/"
},
{
"source": "openssl-security@openssl.org",
"tags": [
"Vendor Advisory"
],
"url": "https://www.openssl.org/news/secadv/20230719.txt"
}
],
"sourceIdentifier": "openssl-security@openssl.org",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-1333"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
}
}
}
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- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.