fkie_cve-2016-2849
Vulnerability from fkie_nvd
Published
2016-05-13 14:59
Modified
2025-04-12 10:46
Severity ?
7.5 (High) - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Summary
Botan before 1.10.13 and 1.11.x before 1.11.29 do not use a constant-time algorithm to perform a modular inverse on the signature nonce k, which might allow remote attackers to obtain ECDSA secret keys via a timing side-channel attack.
References
cve@mitre.orghttp://botan.randombit.net/security.htmlVendor Advisory
cve@mitre.orghttp://lists.fedoraproject.org/pipermail/package-announce/2016-May/183669.html
cve@mitre.orghttp://marc.info/?l=botan-devel&m=146185420505943&w=2Vendor Advisory
cve@mitre.orghttp://www.debian.org/security/2016/dsa-3565
cve@mitre.orghttps://security.gentoo.org/glsa/201701-23
af854a3a-2127-422b-91ae-364da2661108http://botan.randombit.net/security.htmlVendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://lists.fedoraproject.org/pipermail/package-announce/2016-May/183669.html
af854a3a-2127-422b-91ae-364da2661108http://marc.info/?l=botan-devel&m=146185420505943&w=2Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.debian.org/security/2016/dsa-3565
af854a3a-2127-422b-91ae-364da2661108https://security.gentoo.org/glsa/201701-23
Impacted products
Vendor Product Version
debian debian_linux 8.0
fedoraproject fedora 24
botan_project botan 1.10.12
botan_project botan 1.11.0
botan_project botan 1.11.1
botan_project botan 1.11.2
botan_project botan 1.11.3
botan_project botan 1.11.4
botan_project botan 1.11.5
botan_project botan 1.11.6
botan_project botan 1.11.7
botan_project botan 1.11.8
botan_project botan 1.11.9
botan_project botan 1.11.10
botan_project botan 1.11.11
botan_project botan 1.11.12
botan_project botan 1.11.13
botan_project botan 1.11.14
botan_project botan 1.11.15
botan_project botan 1.11.16
botan_project botan 1.11.17
botan_project botan 1.11.18
botan_project botan 1.11.19
botan_project botan 1.11.20
botan_project botan 1.11.21
botan_project botan 1.11.22
botan_project botan 1.11.23
botan_project botan 1.11.24
botan_project botan 1.11.25
botan_project botan 1.11.26
botan_project botan 1.11.27
botan_project botan 1.11.28


To clipboard 

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  "cveTags": [],
  "descriptions": [
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      "value": "Botan before 1.10.13 and 1.11.x before 1.11.29 do not use a constant-time algorithm to perform a modular inverse on the signature nonce k, which might allow remote attackers to obtain ECDSA secret keys via a timing side-channel attack."
    },
    {
      "lang": "es",
      "value": "Botan en versiones anteriores a 1.10.13 y 1.11.x en versiones anteriores a 1.11.29 no utiliza un algoritmo de tiempo constante para realizar un inverso modular en la firma k nonce, lo que podr\u00eda permitir a atacantes remotos obtener claves secretas ECDSA a trav\u00e9s de un ataque de sincronizaci\u00f3n de canal lateral."
    }
  ],
  "id": "CVE-2016-2849",
  "lastModified": "2025-04-12T10:46:40.837",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": true,
        "baseSeverity": "MEDIUM",
        "cvssData": {
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          "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,
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        "source": "nvd@nist.gov",
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          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
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          "userInteraction": "NONE",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
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        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
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  "published": "2016-05-13T14:59:10.713",
  "references": [
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      "source": "cve@mitre.org",
      "tags": [
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      "url": "http://botan.randombit.net/security.html"
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  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
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          "lang": "en",
          "value": "CWE-200"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
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}


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