CVE-2017-9526 (GCVE-0-2017-9526)
Vulnerability from cvelistv5
Published
2017-06-11 02:00
Modified
2024-08-05 17:11
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
In Libgcrypt before 1.7.7, an attacker who learns the EdDSA session key (from side-channel observation during the signing process) can easily recover the long-term secret key. 1.7.7 makes a cipher/ecc-eddsa.c change to store this session key in secure memory, to ensure that constant-time point operations are used in the MPI library.
References
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-05T17:11:02.257Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_refsource_CONFIRM",
"x_transferred"
],
"url": "http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html"
},
{
"tags": [
"x_refsource_CONFIRM",
"x_transferred"
],
"url": "https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html"
},
{
"tags": [
"x_refsource_CONFIRM",
"x_transferred"
],
"url": "https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git%3Ba=commit%3Bh=5a22de904a0a366ae79f03ff1e13a1232a89e26b"
},
{
"name": "DSA-3880",
"tags": [
"vendor-advisory",
"x_refsource_DEBIAN",
"x_transferred"
],
"url": "http://www.debian.org/security/2017/dsa-3880"
},
{
"name": "99046",
"tags": [
"vdb-entry",
"x_refsource_BID",
"x_transferred"
],
"url": "http://www.securityfocus.com/bid/99046"
},
{
"tags": [
"x_refsource_CONFIRM",
"x_transferred"
],
"url": "https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git%3Ba=commit%3Bh=f9494b3f258e01b6af8bd3941ce436bcc00afc56"
},
{
"tags": [
"x_refsource_CONFIRM",
"x_transferred"
],
"url": "https://bugzilla.suse.com/show_bug.cgi?id=1042326"
}
],
"title": "CVE Program Container"
}
],
"cna": {
"affected": [
{
"product": "n/a",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
],
"datePublic": "2017-06-10T00:00:00",
"descriptions": [
{
"lang": "en",
"value": "In Libgcrypt before 1.7.7, an attacker who learns the EdDSA session key (from side-channel observation during the signing process) can easily recover the long-term secret key. 1.7.7 makes a cipher/ecc-eddsa.c change to store this session key in secure memory, to ensure that constant-time point operations are used in the MPI library."
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "n/a",
"lang": "en",
"type": "text"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2019-01-16T18:57:01",
"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"shortName": "mitre"
},
"references": [
{
"tags": [
"x_refsource_CONFIRM"
],
"url": "http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html"
},
{
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html"
},
{
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git%3Ba=commit%3Bh=5a22de904a0a366ae79f03ff1e13a1232a89e26b"
},
{
"name": "DSA-3880",
"tags": [
"vendor-advisory",
"x_refsource_DEBIAN"
],
"url": "http://www.debian.org/security/2017/dsa-3880"
},
{
"name": "99046",
"tags": [
"vdb-entry",
"x_refsource_BID"
],
"url": "http://www.securityfocus.com/bid/99046"
},
{
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git%3Ba=commit%3Bh=f9494b3f258e01b6af8bd3941ce436bcc00afc56"
},
{
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://bugzilla.suse.com/show_bug.cgi?id=1042326"
}
],
"x_legacyV4Record": {
"CVE_data_meta": {
"ASSIGNER": "cve@mitre.org",
"ID": "CVE-2017-9526",
"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": "In Libgcrypt before 1.7.7, an attacker who learns the EdDSA session key (from side-channel observation during the signing process) can easily recover the long-term secret key. 1.7.7 makes a cipher/ecc-eddsa.c change to store this session key in secure memory, to ensure that constant-time point operations are used in the MPI library."
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "n/a"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html",
"refsource": "CONFIRM",
"url": "http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html"
},
{
"name": "https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html",
"refsource": "CONFIRM",
"url": "https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html"
},
{
"name": "https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git;a=commit;h=5a22de904a0a366ae79f03ff1e13a1232a89e26b",
"refsource": "CONFIRM",
"url": "https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git;a=commit;h=5a22de904a0a366ae79f03ff1e13a1232a89e26b"
},
{
"name": "DSA-3880",
"refsource": "DEBIAN",
"url": "http://www.debian.org/security/2017/dsa-3880"
},
{
"name": "99046",
"refsource": "BID",
"url": "http://www.securityfocus.com/bid/99046"
},
{
"name": "https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git;a=commit;h=f9494b3f258e01b6af8bd3941ce436bcc00afc56",
"refsource": "CONFIRM",
"url": "https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git;a=commit;h=f9494b3f258e01b6af8bd3941ce436bcc00afc56"
},
{
"name": "https://bugzilla.suse.com/show_bug.cgi?id=1042326",
"refsource": "CONFIRM",
"url": "https://bugzilla.suse.com/show_bug.cgi?id=1042326"
}
]
}
}
}
},
"cveMetadata": {
"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"assignerShortName": "mitre",
"cveId": "CVE-2017-9526",
"datePublished": "2017-06-11T02:00:00",
"dateReserved": "2017-06-10T00:00:00",
"dateUpdated": "2024-08-05T17:11:02.257Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1",
"vulnerability-lookup:meta": {
"nvd": "{\"cve\":{\"id\":\"CVE-2017-9526\",\"sourceIdentifier\":\"cve@mitre.org\",\"published\":\"2017-06-11T02:29:00.183\",\"lastModified\":\"2025-04-20T01:37:25.860\",\"vulnStatus\":\"Deferred\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In Libgcrypt before 1.7.7, an attacker who learns the EdDSA session key (from side-channel observation during the signing process) can easily recover the long-term secret key. 1.7.7 makes a cipher/ecc-eddsa.c change to store this session key in secure memory, to ensure that constant-time point operations are used in the MPI library.\"},{\"lang\":\"es\",\"value\":\"En Libgcrypt, anterior a versi\u00f3n 1.7.7, un atacante que aprende la clave de sesi\u00f3n EdDSA (de la observaci\u00f3n del canal lateral durante el proceso de firma) puede f\u00e1cilmente recuperar la clave secreta a largo plazo . 1.7.7 haciendo un cambio del archivo cipher/ecc-eddsa.c para almacenar esta clave de sesi\u00f3n en memoria segura, y as\u00ed garantizar que operaciones puntuales de tiempo constante sean usadas en la biblioteca MPI.\"}],\"metrics\":{\"cvssMetricV30\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.0\",\"vectorString\":\"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N\",\"baseScore\":5.9,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":2.2,\"impactScore\":3.6}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:M/Au:N/C:P/I:N/A:N\",\"baseScore\":4.3,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"MEDIUM\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"PARTIAL\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\"},\"baseSeverity\":\"MEDIUM\",\"exploitabilityScore\":8.6,\"impactScore\":2.9,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-200\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:gnupg:libgcrypt:*:*:*:*:*:*:*:*\",\"versionEndIncluding\":\"1.7.6\",\"matchCriteriaId\":\"A66275EC-B910-4149-869D-6C0168547FAB\"}]}]}],\"references\":[{\"url\":\"http://www.debian.org/security/2017/dsa-3880\",\"source\":\"cve@mitre.org\"},{\"url\":\"http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html\",\"source\":\"cve@mitre.org\"},{\"url\":\"http://www.securityfocus.com/bid/99046\",\"source\":\"cve@mitre.org\",\"tags\":[\"Third Party Advisory\",\"VDB Entry\"]},{\"url\":\"https://bugzilla.suse.com/show_bug.cgi?id=1042326\",\"source\":\"cve@mitre.org\",\"tags\":[\"Issue Tracking\",\"Patch\"]},{\"url\":\"https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git%3Ba=commit%3Bh=5a22de904a0a366ae79f03ff1e13a1232a89e26b\",\"source\":\"cve@mitre.org\"},{\"url\":\"https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git%3Ba=commit%3Bh=f9494b3f258e01b6af8bd3941ce436bcc00afc56\",\"source\":\"cve@mitre.org\"},{\"url\":\"https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html\",\"source\":\"cve@mitre.org\"},{\"url\":\"http://www.debian.org/security/2017/dsa-3880\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"http://www.securityfocus.com/bid/99046\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\",\"VDB Entry\"]},{\"url\":\"https://bugzilla.suse.com/show_bug.cgi?id=1042326\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Issue Tracking\",\"Patch\"]},{\"url\":\"https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git%3Ba=commit%3Bh=5a22de904a0a366ae79f03ff1e13a1232a89e26b\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git%3Ba=commit%3Bh=f9494b3f258e01b6af8bd3941ce436bcc00afc56\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"}]}}"
}
}
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.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- 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.
Loading…
Loading…