gsd-2016-1000339
Vulnerability from gsd
Modified
2023-12-13 01:21
Details
In the Bouncy Castle JCE Provider version 1.55 and earlier the primary engine class used for AES was AESFastEngine. Due to the highly table driven approach used in the algorithm it turns out that if the data channel on the CPU can be monitored the lookup table accesses are sufficient to leak information on the AES key being used. There was also a leak in AESEngine although it was substantially less. AESEngine has been modified to remove any signs of leakage (testing carried out on Intel X86-64) and is now the primary AES class for the BC JCE provider from 1.56. Use of AESFastEngine is now only recommended where otherwise deemed appropriate.
Aliases
Aliases
CVE-2016-1000339


To clipboard 

{
  "GSD": {
    "alias": "CVE-2016-1000339",
    "description": "In the Bouncy Castle JCE Provider version 1.55 and earlier the primary engine class used for AES was AESFastEngine. Due to the highly table driven approach used in the algorithm it turns out that if the data channel on the CPU can be monitored the lookup table accesses are sufficient to leak information on the AES key being used. There was also a leak in AESEngine although it was substantially less. AESEngine has been modified to remove any signs of leakage (testing carried out on Intel X86-64) and is now the primary AES class for the BC JCE provider from 1.56. Use of AESFastEngine is now only recommended where otherwise deemed appropriate.",
    "id": "GSD-2016-1000339",
    "references": [
      "https://www.suse.com/security/cve/CVE-2016-1000339.html",
      "https://access.redhat.com/errata/RHSA-2018:2927",
      "https://access.redhat.com/errata/RHSA-2018:2669",
      "https://ubuntu.com/security/CVE-2016-1000339",
      "https://advisories.mageia.org/CVE-2016-1000339.html"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2016-1000339"
      ],
      "details": "In the Bouncy Castle JCE Provider version 1.55 and earlier the primary engine class used for AES was AESFastEngine. Due to the highly table driven approach used in the algorithm it turns out that if the data channel on the CPU can be monitored the lookup table accesses are sufficient to leak information on the AES key being used. There was also a leak in AESEngine although it was substantially less. AESEngine has been modified to remove any signs of leakage (testing carried out on Intel X86-64) and is now the primary AES class for the BC JCE provider from 1.56. Use of AESFastEngine is now only recommended where otherwise deemed appropriate.",
      "id": "GSD-2016-1000339",
      "modified": "2023-12-13T01:21:18.009222Z",
      "schema_version": "1.4.0"
    }
  },
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    },
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          "cwe_ids": [
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            "CWE-310",
            "CWE-937"
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          "date": "2021-09-08",
          "description": "In the Bouncy Castle JCE Provider version 1.55 and earlier the primary engine class used for AES was AESFastEngine. Due to the highly table driven approach used in the algorithm it turns out that if the data channel on the CPU can be monitored the lookup table accesses are sufficient to leak information on the AES key being used. There was also a leak in AESEngine although it was substantially less. AESEngine has been modified to remove any signs of leakage (testing carried out on Intel X86-64) and is now the primary AES class for the BC JCE provider from 1.56. Use of AESFastEngine is now only recommended where otherwise deemed appropriate.",
          "fixed_versions": [
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          "identifier": "CVE-2016-1000339",
          "identifiers": [
            "GHSA-c8xf-m4ff-jcxj",
            "CVE-2016-1000339"
          ],
          "not_impacted": "All versions starting from 1.56",
          "package_slug": "maven/org.bouncycastle/bcprov-jdk14",
          "pubdate": "2018-10-17",
          "solution": "Upgrade to version 1.56 or above.",
          "title": "Moderate severity vulnerability that affects org.bouncycastle:bcprov-jdk14 and org.bouncycastle:bcprov-jdk15",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2016-1000339",
            "https://github.com/bcgit/bc-java/commit/413b42f4d770456508585c830cfcde95f9b0e93b#diff-54656f860db94b867ba7542430cd2ef0",
            "https://github.com/bcgit/bc-java/commit/8a73f08931450c17c749af067b6a8185abdfd2c0#diff-494fb066bed02aeb76b6c005632943f2",
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          "uuid": "d3c2a86f-d610-452a-8ed1-6c73b4deadce"
        },
        {
          "affected_range": "(,1.56)",
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          "cwe_ids": [
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            "CWE-310",
            "CWE-937"
          ],
          "date": "2021-09-08",
          "description": "In the Bouncy Castle JCE Provider version 1.55 and earlier the primary engine class used for AES was AESFastEngine. Due to the highly table driven approach used in the algorithm it turns out that if the data channel on the CPU can be monitored the lookup table accesses are sufficient to leak information on the AES key being used. There was also a leak in AESEngine although it was substantially less. AESEngine has been modified to remove any signs of leakage (testing carried out on Intel X86-64) and is now the primary AES class for the BC JCE provider from 1.56. Use of AESFastEngine is now only recommended where otherwise deemed appropriate.",
          "fixed_versions": [
            "1.56"
          ],
          "identifier": "CVE-2016-1000339",
          "identifiers": [
            "GHSA-c8xf-m4ff-jcxj",
            "CVE-2016-1000339"
          ],
          "not_impacted": "All versions starting from 1.56",
          "package_slug": "maven/org.bouncycastle/bcprov-jdk15",
          "pubdate": "2018-10-17",
          "solution": "Upgrade to version 1.56 or above.",
          "title": "Moderate severity vulnerability that affects org.bouncycastle:bcprov-jdk14 and org.bouncycastle:bcprov-jdk15",
          "urls": [
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            "https://github.com/bcgit/bc-java/commit/413b42f4d770456508585c830cfcde95f9b0e93b#diff-54656f860db94b867ba7542430cd2ef0",
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    },
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            "cpe_match": [
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                "cpe23Uri": "cpe:2.3:a:bouncycastle:legion-of-the-bouncy-castle-java-crytography-api:*:*:*:*:*:*:*:*",
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      },
      "impact": {
        "baseMetricV2": {
          "cvssV2": {
            "accessComplexity": "LOW",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "NONE",
            "baseScore": 5.0,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "NONE",
            "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N",
            "version": "2.0"
          },
          "exploitabilityScore": 10.0,
          "impactScore": 2.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
            "version": "3.0"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 1.4
        }
      },
      "lastModifiedDate": "2020-10-20T22:15Z",
      "publishedDate": "2018-06-04T13:29Z"
    }
  }
}


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