cve-2011-0539
Vulnerability from cvelistv5
Published
2011-02-10 17:00
Modified
2024-08-06 21:58
Severity ?
EPSS score ?
Summary
The key_certify function in usr.bin/ssh/key.c in OpenSSH 5.6 and 5.7, when generating legacy certificates using the -t command-line option in ssh-keygen, does not initialize the nonce field, which might allow remote attackers to obtain sensitive stack memory contents or make it easier to conduct hash collision attacks.
References
{ "containers": { "adp": [ { "providerMetadata": { "dateUpdated": "2024-08-06T21:58:25.891Z", "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE" }, "references": [ { "name": "[oss-security] 20110204 Re: [vendor-sec] OpenSSH security advisory: legacy certificate signing in 5.6/5.7", "tags": [ "mailing-list", "x_refsource_MLIST", "x_transferred" ], "url": "http://www.openwall.com/lists/oss-security/2011/02/04/2" }, { "name": "1025028", "tags": [ "vdb-entry", "x_refsource_SECTRACK", "x_transferred" ], "url": "http://www.securitytracker.com/id?1025028" }, { "name": "46155", "tags": [ "vdb-entry", "x_refsource_BID", "x_transferred" ], "url": "http://www.securityfocus.com/bid/46155" }, { "tags": [ "x_refsource_CONFIRM", "x_transferred" ], "url": "http://kb.juniper.net/InfoCenter/index?page=content\u0026id=JSA10673" }, { "name": "ADV-2011-0284", "tags": [ "vdb-entry", "x_refsource_VUPEN", "x_transferred" ], "url": "http://www.vupen.com/english/advisories/2011/0284" }, { "name": "43181", "tags": [ "third-party-advisory", "x_refsource_SECUNIA", "x_transferred" ], "url": "http://secunia.com/advisories/43181" }, { "name": "HPSBMA02658", "tags": [ "vendor-advisory", "x_refsource_HP", "x_transferred" ], "url": "http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c02794777" }, { "name": "SSRT100413", "tags": [ "vendor-advisory", "x_refsource_HP", "x_transferred" ], "url": "http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c02794777" }, { "name": "44269", "tags": [ "third-party-advisory", "x_refsource_SECUNIA", "x_transferred" ], "url": "http://secunia.com/advisories/44269" }, { "tags": [ "x_refsource_CONFIRM", "x_transferred" ], "url": "http://www.openssh.com/txt/legacy-cert.adv" }, { "name": "openssh-certificate-info-disclosure(65163)", "tags": [ "vdb-entry", "x_refsource_XF", "x_transferred" ], "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/65163" } ], "title": "CVE Program Container" } ], "cna": { "affected": [ { "product": "n/a", "vendor": "n/a", "versions": [ { "status": "affected", "version": "n/a" } ] } ], "datePublic": "2011-02-04T00:00:00", "descriptions": [ { "lang": "en", "value": "The key_certify function in usr.bin/ssh/key.c in OpenSSH 5.6 and 5.7, when generating legacy certificates using the -t command-line option in ssh-keygen, does not initialize the nonce field, which might allow remote attackers to obtain sensitive stack memory contents or make it easier to conduct hash collision attacks." } ], "problemTypes": [ { "descriptions": [ { "description": "n/a", "lang": "en", "type": "text" } ] } ], "providerMetadata": { "dateUpdated": "2017-08-16T14:57:01", "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "shortName": "redhat" }, "references": [ { "name": "[oss-security] 20110204 Re: [vendor-sec] OpenSSH security advisory: legacy certificate signing in 5.6/5.7", "tags": [ "mailing-list", "x_refsource_MLIST" ], "url": "http://www.openwall.com/lists/oss-security/2011/02/04/2" }, { "name": "1025028", "tags": [ "vdb-entry", "x_refsource_SECTRACK" ], "url": "http://www.securitytracker.com/id?1025028" }, { "name": "46155", "tags": [ "vdb-entry", "x_refsource_BID" ], "url": "http://www.securityfocus.com/bid/46155" }, { "tags": [ "x_refsource_CONFIRM" ], "url": "http://kb.juniper.net/InfoCenter/index?page=content\u0026id=JSA10673" }, { "name": "ADV-2011-0284", "tags": [ "vdb-entry", "x_refsource_VUPEN" ], "url": "http://www.vupen.com/english/advisories/2011/0284" }, { "name": "43181", "tags": [ "third-party-advisory", "x_refsource_SECUNIA" ], "url": "http://secunia.com/advisories/43181" }, { "name": "HPSBMA02658", "tags": [ "vendor-advisory", "x_refsource_HP" ], "url": "http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c02794777" }, { "name": "SSRT100413", "tags": [ "vendor-advisory", "x_refsource_HP" ], "url": "http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c02794777" }, { "name": "44269", "tags": [ "third-party-advisory", "x_refsource_SECUNIA" ], "url": "http://secunia.com/advisories/44269" }, { "tags": [ "x_refsource_CONFIRM" ], "url": "http://www.openssh.com/txt/legacy-cert.adv" }, { "name": "openssh-certificate-info-disclosure(65163)", "tags": [ "vdb-entry", "x_refsource_XF" ], "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/65163" } ] } }, "cveMetadata": { "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "assignerShortName": "redhat", "cveId": "CVE-2011-0539", "datePublished": "2011-02-10T17:00:00", "dateReserved": "2011-01-20T00:00:00", "dateUpdated": "2024-08-06T21:58:25.891Z", "state": "PUBLISHED" }, "dataType": "CVE_RECORD", "dataVersion": "5.1", "vulnerability-lookup:meta": { "fkie_nvd": { "configurations": "[{\"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:openbsd:openssh:5.6:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"0C5D4A9B-1194-4D63-AAC2-8701C890BB0D\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:openbsd:openssh:5.7:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"F75DB5AE-E99D-4827-B290-823E015AEE34\"}]}]}]", "descriptions": "[{\"lang\": \"en\", \"value\": \"The key_certify function in usr.bin/ssh/key.c in OpenSSH 5.6 and 5.7, when generating legacy certificates using the -t command-line option in ssh-keygen, does not initialize the nonce field, which might allow remote attackers to obtain sensitive stack memory contents or make it easier to conduct hash collision attacks.\"}, {\"lang\": \"es\", \"value\": \"La funci\\u00f3n key_certify en usr.bin/ssh/key.c en OpenSSH v5.6 y v5.7 al generar los certificados de herencia con la opci\\u00f3n de l\\u00ednea de comandos -t en ssh-keygen, no se inicializa el campo nonce, que podr\\u00eda permitir a atacantes remotos obtener contenido sensible de la pila de memoria o que sea m\\u00e1s f\\u00e1cil de llevar a cabo ataques de colisi\\u00f3n hash.\"}]", "id": "CVE-2011-0539", "lastModified": "2024-11-21T01:24:15.003", "metrics": "{\"cvssMetricV2\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"2.0\", \"vectorString\": \"AV:N/AC:L/Au:N/C:P/I:N/A:N\", \"baseScore\": 5.0, \"accessVector\": \"NETWORK\", \"accessComplexity\": \"LOW\", \"authentication\": \"NONE\", \"confidentialityImpact\": \"PARTIAL\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"NONE\"}, \"baseSeverity\": \"MEDIUM\", \"exploitabilityScore\": 10.0, \"impactScore\": 2.9, \"acInsufInfo\": false, \"obtainAllPrivilege\": false, \"obtainUserPrivilege\": false, \"obtainOtherPrivilege\": false, \"userInteractionRequired\": false}]}", "published": "2011-02-10T18:00:57.660", "references": "[{\"url\": \"http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c02794777\", \"source\": \"secalert@redhat.com\"}, {\"url\": \"http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c02794777\", \"source\": \"secalert@redhat.com\"}, {\"url\": \"http://kb.juniper.net/InfoCenter/index?page=content\u0026id=JSA10673\", \"source\": \"secalert@redhat.com\"}, {\"url\": \"http://secunia.com/advisories/43181\", \"source\": \"secalert@redhat.com\", \"tags\": [\"Vendor Advisory\"]}, {\"url\": \"http://secunia.com/advisories/44269\", \"source\": \"secalert@redhat.com\"}, {\"url\": \"http://www.openssh.com/txt/legacy-cert.adv\", \"source\": \"secalert@redhat.com\", \"tags\": [\"Patch\", \"Vendor Advisory\"]}, {\"url\": \"http://www.openwall.com/lists/oss-security/2011/02/04/2\", \"source\": \"secalert@redhat.com\"}, {\"url\": \"http://www.securityfocus.com/bid/46155\", \"source\": \"secalert@redhat.com\"}, {\"url\": \"http://www.securitytracker.com/id?1025028\", \"source\": \"secalert@redhat.com\"}, {\"url\": \"http://www.vupen.com/english/advisories/2011/0284\", \"source\": \"secalert@redhat.com\", \"tags\": [\"Vendor Advisory\"]}, {\"url\": \"https://exchange.xforce.ibmcloud.com/vulnerabilities/65163\", \"source\": \"secalert@redhat.com\"}, {\"url\": \"http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c02794777\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c02794777\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"http://kb.juniper.net/InfoCenter/index?page=content\u0026id=JSA10673\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"http://secunia.com/advisories/43181\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Vendor Advisory\"]}, {\"url\": \"http://secunia.com/advisories/44269\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"http://www.openssh.com/txt/legacy-cert.adv\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Patch\", \"Vendor Advisory\"]}, {\"url\": \"http://www.openwall.com/lists/oss-security/2011/02/04/2\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"http://www.securityfocus.com/bid/46155\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"http://www.securitytracker.com/id?1025028\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"http://www.vupen.com/english/advisories/2011/0284\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Vendor Advisory\"]}, {\"url\": \"https://exchange.xforce.ibmcloud.com/vulnerabilities/65163\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}]", "sourceIdentifier": "secalert@redhat.com", "vulnStatus": "Modified", "weaknesses": "[{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-264\"}]}]" }, "nvd": "{\"cve\":{\"id\":\"CVE-2011-0539\",\"sourceIdentifier\":\"secalert@redhat.com\",\"published\":\"2011-02-10T18:00:57.660\",\"lastModified\":\"2024-11-21T01:24:15.003\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"The key_certify function in usr.bin/ssh/key.c in OpenSSH 5.6 and 5.7, when generating legacy certificates using the -t command-line option in ssh-keygen, does not initialize the nonce field, which might allow remote attackers to obtain sensitive stack memory contents or make it easier to conduct hash collision attacks.\"},{\"lang\":\"es\",\"value\":\"La funci\u00f3n key_certify en usr.bin/ssh/key.c en OpenSSH v5.6 y v5.7 al generar los certificados de herencia con la opci\u00f3n de l\u00ednea de comandos -t en ssh-keygen, no se inicializa el campo nonce, que podr\u00eda permitir a atacantes remotos obtener contenido sensible de la pila de memoria o que sea m\u00e1s f\u00e1cil de llevar a cabo ataques de colisi\u00f3n hash.\"}],\"metrics\":{\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:L/Au:N/C:P/I:N/A:N\",\"baseScore\":5.0,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"LOW\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"PARTIAL\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\"},\"baseSeverity\":\"MEDIUM\",\"exploitabilityScore\":10.0,\"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-264\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:openbsd:openssh:5.6:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"0C5D4A9B-1194-4D63-AAC2-8701C890BB0D\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:openbsd:openssh:5.7:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"F75DB5AE-E99D-4827-B290-823E015AEE34\"}]}]}],\"references\":[{\"url\":\"http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c02794777\",\"source\":\"secalert@redhat.com\"},{\"url\":\"http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c02794777\",\"source\":\"secalert@redhat.com\"},{\"url\":\"http://kb.juniper.net/InfoCenter/index?page=content\u0026id=JSA10673\",\"source\":\"secalert@redhat.com\"},{\"url\":\"http://secunia.com/advisories/43181\",\"source\":\"secalert@redhat.com\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"http://secunia.com/advisories/44269\",\"source\":\"secalert@redhat.com\"},{\"url\":\"http://www.openssh.com/txt/legacy-cert.adv\",\"source\":\"secalert@redhat.com\",\"tags\":[\"Patch\",\"Vendor Advisory\"]},{\"url\":\"http://www.openwall.com/lists/oss-security/2011/02/04/2\",\"source\":\"secalert@redhat.com\"},{\"url\":\"http://www.securityfocus.com/bid/46155\",\"source\":\"secalert@redhat.com\"},{\"url\":\"http://www.securitytracker.com/id?1025028\",\"source\":\"secalert@redhat.com\"},{\"url\":\"http://www.vupen.com/english/advisories/2011/0284\",\"source\":\"secalert@redhat.com\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"https://exchange.xforce.ibmcloud.com/vulnerabilities/65163\",\"source\":\"secalert@redhat.com\"},{\"url\":\"http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c02794777\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c02794777\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"http://kb.juniper.net/InfoCenter/index?page=content\u0026id=JSA10673\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"http://secunia.com/advisories/43181\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"http://secunia.com/advisories/44269\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"http://www.openssh.com/txt/legacy-cert.adv\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\",\"Vendor Advisory\"]},{\"url\":\"http://www.openwall.com/lists/oss-security/2011/02/04/2\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"http://www.securityfocus.com/bid/46155\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"http://www.securitytracker.com/id?1025028\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"http://www.vupen.com/english/advisories/2011/0284\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"https://exchange.xforce.ibmcloud.com/vulnerabilities/65163\",\"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.
- 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.