cve-2015-7744
Vulnerability from cvelistv5
Published
2016-01-22 15:00
Modified
2024-08-06 07:58
Severity ?
EPSS score ?
Summary
wolfSSL (formerly CyaSSL) before 3.6.8 does not properly handle faults associated with the Chinese Remainder Theorem (CRT) process when allowing ephemeral key exchange without low memory optimizations on a server, which makes it easier for remote attackers to obtain private RSA keys by capturing TLS handshakes, aka a Lenstra attack.
References
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-06T07:58:59.924Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"name": "openSUSE-SU-2016:0367",
"tags": [
"vendor-advisory",
"x_refsource_SUSE",
"x_transferred"
],
"url": "http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00015.html"
},
{
"name": "1034708",
"tags": [
"vdb-entry",
"x_refsource_SECTRACK",
"x_transferred"
],
"url": "http://www.securitytracker.com/id/1034708"
},
{
"tags": [
"x_refsource_CONFIRM",
"x_transferred"
],
"url": "http://wolfssl.com/wolfSSL/Docs-wolfssl-changelog.html"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://people.redhat.com/~fweimer/rsa-crt-leaks.pdf"
},
{
"tags": [
"x_refsource_CONFIRM",
"x_transferred"
],
"url": "http://www.oracle.com/technetwork/topics/security/cpujan2016-2367955.html"
},
{
"tags": [
"x_refsource_CONFIRM",
"x_transferred"
],
"url": "http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html"
},
{
"tags": [
"x_refsource_CONFIRM",
"x_transferred"
],
"url": "https://wolfssl.com/wolfSSL/Blog/Entries/2015/9/17_Two_Vulnerabilities_Recently_Found%2C_An_Attack_on_RSA_using_CRT_and_DoS_Vulnerability_With_DTLS.html"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://securityblog.redhat.com/2015/09/02/factoring-rsa-keys-with-tls-perfect-forward-secrecy/"
},
{
"name": "openSUSE-SU-2016:0377",
"tags": [
"vendor-advisory",
"x_refsource_SUSE",
"x_transferred"
],
"url": "http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00016.html"
}
],
"title": "CVE Program Container"
}
],
"cna": {
"affected": [
{
"product": "n/a",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
],
"datePublic": "2015-09-17T00:00:00",
"descriptions": [
{
"lang": "en",
"value": "wolfSSL (formerly CyaSSL) before 3.6.8 does not properly handle faults associated with the Chinese Remainder Theorem (CRT) process when allowing ephemeral key exchange without low memory optimizations on a server, which makes it easier for remote attackers to obtain private RSA keys by capturing TLS handshakes, aka a Lenstra attack."
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "n/a",
"lang": "en",
"type": "text"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2016-12-05T14:57:01",
"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"shortName": "mitre"
},
"references": [
{
"name": "openSUSE-SU-2016:0367",
"tags": [
"vendor-advisory",
"x_refsource_SUSE"
],
"url": "http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00015.html"
},
{
"name": "1034708",
"tags": [
"vdb-entry",
"x_refsource_SECTRACK"
],
"url": "http://www.securitytracker.com/id/1034708"
},
{
"tags": [
"x_refsource_CONFIRM"
],
"url": "http://wolfssl.com/wolfSSL/Docs-wolfssl-changelog.html"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://people.redhat.com/~fweimer/rsa-crt-leaks.pdf"
},
{
"tags": [
"x_refsource_CONFIRM"
],
"url": "http://www.oracle.com/technetwork/topics/security/cpujan2016-2367955.html"
},
{
"tags": [
"x_refsource_CONFIRM"
],
"url": "http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html"
},
{
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://wolfssl.com/wolfSSL/Blog/Entries/2015/9/17_Two_Vulnerabilities_Recently_Found%2C_An_Attack_on_RSA_using_CRT_and_DoS_Vulnerability_With_DTLS.html"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://securityblog.redhat.com/2015/09/02/factoring-rsa-keys-with-tls-perfect-forward-secrecy/"
},
{
"name": "openSUSE-SU-2016:0377",
"tags": [
"vendor-advisory",
"x_refsource_SUSE"
],
"url": "http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00016.html"
}
],
"x_legacyV4Record": {
"CVE_data_meta": {
"ASSIGNER": "cve@mitre.org",
"ID": "CVE-2015-7744",
"STATE": "PUBLIC"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "n/a",
"version": {
"version_data": [
{
"version_value": "n/a"
}
]
}
}
]
},
"vendor_name": "n/a"
}
]
}
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "wolfSSL (formerly CyaSSL) before 3.6.8 does not properly handle faults associated with the Chinese Remainder Theorem (CRT) process when allowing ephemeral key exchange without low memory optimizations on a server, which makes it easier for remote attackers to obtain private RSA keys by capturing TLS handshakes, aka a Lenstra attack."
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "n/a"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "openSUSE-SU-2016:0367",
"refsource": "SUSE",
"url": "http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00015.html"
},
{
"name": "1034708",
"refsource": "SECTRACK",
"url": "http://www.securitytracker.com/id/1034708"
},
{
"name": "http://wolfssl.com/wolfSSL/Docs-wolfssl-changelog.html",
"refsource": "CONFIRM",
"url": "http://wolfssl.com/wolfSSL/Docs-wolfssl-changelog.html"
},
{
"name": "https://people.redhat.com/~fweimer/rsa-crt-leaks.pdf",
"refsource": "MISC",
"url": "https://people.redhat.com/~fweimer/rsa-crt-leaks.pdf"
},
{
"name": "http://www.oracle.com/technetwork/topics/security/cpujan2016-2367955.html",
"refsource": "CONFIRM",
"url": "http://www.oracle.com/technetwork/topics/security/cpujan2016-2367955.html"
},
{
"name": "http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html",
"refsource": "CONFIRM",
"url": "http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html"
},
{
"name": "https://wolfssl.com/wolfSSL/Blog/Entries/2015/9/17_Two_Vulnerabilities_Recently_Found%2C_An_Attack_on_RSA_using_CRT_and_DoS_Vulnerability_With_DTLS.html",
"refsource": "CONFIRM",
"url": "https://wolfssl.com/wolfSSL/Blog/Entries/2015/9/17_Two_Vulnerabilities_Recently_Found%2C_An_Attack_on_RSA_using_CRT_and_DoS_Vulnerability_With_DTLS.html"
},
{
"name": "https://securityblog.redhat.com/2015/09/02/factoring-rsa-keys-with-tls-perfect-forward-secrecy/",
"refsource": "MISC",
"url": "https://securityblog.redhat.com/2015/09/02/factoring-rsa-keys-with-tls-perfect-forward-secrecy/"
},
{
"name": "openSUSE-SU-2016:0377",
"refsource": "SUSE",
"url": "http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00016.html"
}
]
}
}
}
},
"cveMetadata": {
"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"assignerShortName": "mitre",
"cveId": "CVE-2015-7744",
"datePublished": "2016-01-22T15:00:00",
"dateReserved": "2015-10-07T00:00:00",
"dateUpdated": "2024-08-06T07:58:59.924Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1",
"meta": {
"nvd": "{\"cve\":{\"id\":\"CVE-2015-7744\",\"sourceIdentifier\":\"cve@mitre.org\",\"published\":\"2016-01-22T15:59:04.570\",\"lastModified\":\"2022-08-29T20:52:47.140\",\"vulnStatus\":\"Analyzed\",\"descriptions\":[{\"lang\":\"en\",\"value\":\"wolfSSL (formerly CyaSSL) before 3.6.8 does not properly handle faults associated with the Chinese Remainder Theorem (CRT) process when allowing ephemeral key exchange without low memory optimizations on a server, which makes it easier for remote attackers to obtain private RSA keys by capturing TLS handshakes, aka a Lenstra attack.\"},{\"lang\":\"es\",\"value\":\"wolfSSL (anteriormente CyaSSL) en versiones anteriores a 3.6.8 no maneja correctamente fallos asociados con el proceso Chinese Remainder Theorem (CRT) cuando permiten el intercambio de claves ef\u00edmeras sin optimizaciones de memoria baja en un servidor, lo que hace que sea m\u00e1s f\u00e1cil para atacantes remotos obtener claves privadas RSA mediante la captura de un apret\u00f3n de manos TLS, tambi\u00e9n conocido como un ataque Lenstra.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\",\"baseScore\":5.9,\"baseSeverity\":\"MEDIUM\"},\"exploitabilityScore\":2.2,\"impactScore\":3.6}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:H/Au:N/C:P/I:N/A:N\",\"accessVector\":\"NETWORK\",\"accessComplexity\":\"HIGH\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"PARTIAL\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\",\"baseScore\":2.6},\"baseSeverity\":\"LOW\",\"exploitabilityScore\":4.9,\"impactScore\":2.9,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"NVD-CWE-noinfo\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:wolfssl:wolfssl:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"3.6.8\",\"matchCriteriaId\":\"DCCE5683-CB64-46B4-8936-B1FCDD586892\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:opensuse:leap:42.1:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"4863BE36-D16A-4D75-90D9-FD76DB5B48B7\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:opensuse:opensuse:13.1:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"A10BC294-9196-425F-9FB0-B1625465B47F\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:opensuse:opensuse:13.2:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"03117DF1-3BEC-4B8D-AD63-DBBDB2126081\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:mariadb:mariadb:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.5.0\",\"versionEndExcluding\":\"5.5.46\",\"matchCriteriaId\":\"B570B154-3385-45E5-BD26-F8F114ADD39C\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:mariadb:mariadb:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"10.0.0\",\"versionEndExcluding\":\"10.0.22\",\"matchCriteriaId\":\"4539D293-8B6D-4ADB-98C9-5C7FF5B01CEF\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:mariadb:mariadb:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"10.1.0\",\"versionEndExcluding\":\"10.1.9\",\"matchCriteriaId\":\"70B6417F-7B57-4DDE-8663-919C14C13B1D\"}]}]}],\"references\":[{\"url\":\"http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00015.html\",\"source\":\"cve@mitre.org\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00016.html\",\"source\":\"cve@mitre.org\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"http://wolfssl.com/wolfSSL/Docs-wolfssl-changelog.html\",\"source\":\"cve@mitre.org\",\"tags\":[\"Release Notes\",\"Vendor Advisory\"]},{\"url\":\"http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html\",\"source\":\"cve@mitre.org\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"http://www.oracle.com/technetwork/topics/security/cpujan2016-2367955.html\",\"source\":\"cve@mitre.org\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"http://www.securitytracker.com/id/1034708\",\"source\":\"cve@mitre.org\",\"tags\":[\"Broken Link\",\"Third Party Advisory\",\"VDB Entry\"]},{\"url\":\"https://people.redhat.com/~fweimer/rsa-crt-leaks.pdf\",\"source\":\"cve@mitre.org\",\"tags\":[\"Exploit\",\"Third Party Advisory\"]},{\"url\":\"https://securityblog.redhat.com/2015/09/02/factoring-rsa-keys-with-tls-perfect-forward-secrecy/\",\"source\":\"cve@mitre.org\",\"tags\":[\"Exploit\",\"Third Party Advisory\"]},{\"url\":\"https://wolfssl.com/wolfSSL/Blog/Entries/2015/9/17_Two_Vulnerabilities_Recently_Found%2C_An_Attack_on_RSA_using_CRT_and_DoS_Vulnerability_With_DTLS.html\",\"source\":\"cve@mitre.org\",\"tags\":[\"Vendor Advisory\"]}]}}"
}
}
Loading...
Loading...
Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- 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.