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FKIE_CVE-2007-4311

Vulnerability from fkie_nvd - Published: 2007-08-13 21:17 - Updated: 2026-06-16 22:43
Severity
Summary
The xfer_secondary_pool function in drivers/char/random.c in the Linux kernel 2.4 before 2.4.35 performs reseed operations on only the first few bytes of a buffer, which might make it easier for attackers to predict the output of the random number generator, related to incorrect use of the sizeof operator.
References
cve@mitre.orghttp://git.kernel.org/?p=linux/kernel/git/stable/linux-2.4.34.y.git%3Ba=commit%3Bh=bd67d4c7b11cc33ebdc346bc8926d255b354cd64
cve@mitre.orghttp://git.kernel.org/?p=linux/kernel/git/stable/linux-2.4.34.y.git%3Ba=commit%3Bh=faa3369ac2ea7feb0dd266b6a5e8d6ab153cf925
cve@mitre.orghttp://secunia.com/advisories/29058Vendor Advisory
cve@mitre.orghttp://www.debian.org/security/2008/dsa-1503
cve@mitre.orghttp://www.kernel.org/pub/linux/kernel/v2.4/ChangeLog-2.4.34.6
cve@mitre.orghttp://www.kernel.org/pub/linux/kernel/v2.4/ChangeLog-2.4.35
cve@mitre.orghttp://www.securityfocus.com/bid/25029
cve@mitre.orghttp://www.vupen.com/english/advisories/2007/2690Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://git.kernel.org/?p=linux/kernel/git/stable/linux-2.4.34.y.git%3Ba=commit%3Bh=bd67d4c7b11cc33ebdc346bc8926d255b354cd64
af854a3a-2127-422b-91ae-364da2661108http://git.kernel.org/?p=linux/kernel/git/stable/linux-2.4.34.y.git%3Ba=commit%3Bh=faa3369ac2ea7feb0dd266b6a5e8d6ab153cf925
af854a3a-2127-422b-91ae-364da2661108http://secunia.com/advisories/29058Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.debian.org/security/2008/dsa-1503
af854a3a-2127-422b-91ae-364da2661108http://www.kernel.org/pub/linux/kernel/v2.4/ChangeLog-2.4.34.6
af854a3a-2127-422b-91ae-364da2661108http://www.kernel.org/pub/linux/kernel/v2.4/ChangeLog-2.4.35
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/25029
af854a3a-2127-422b-91ae-364da2661108http://www.vupen.com/english/advisories/2007/2690Vendor Advisory
Impacted products
Vendor Product Version
linux linux_kernel *

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "source": "cve@mitre.org"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "5C3B1DA1-47AF-4C15-877D-D971D95623BE",
              "versionEndIncluding": "2.4.34",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The xfer_secondary_pool function in drivers/char/random.c in the Linux kernel 2.4 before 2.4.35 performs reseed operations on only the first few bytes of a buffer, which might make it easier for attackers to predict the output of the random number generator, related to incorrect use of the sizeof operator."
    },
    {
      "lang": "es",
      "value": "La funci\u00f3n xfer_secondary_pool en el archivo drivers/char/random.c en el kernel de Linux versiones 2.4 anteriores a 2.4.35, realiza operaciones de reconfiguraci\u00f3n solo en los primeros bytes de un b\u00fafer, lo que podr\u00eda hacer mas f\u00e1cil para los atacantes predecir la salida del generador de n\u00fameros aleatorios, relacionado con el uso incorrecto del operador sizeof."
    }
  ],
  "id": "CVE-2007-4311",
  "lastModified": "2026-06-16T22:43:47.450",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "MEDIUM",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 6.8,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 8.6,
        "impactScore": 6.4,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ]
  },
  "published": "2007-08-13T21:17:00.000",
  "references": [
    {
      "source": "cve@mitre.org",
      "url": "http://git.kernel.org/?p=linux/kernel/git/stable/linux-2.4.34.y.git%3Ba=commit%3Bh=bd67d4c7b11cc33ebdc346bc8926d255b354cd64"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://git.kernel.org/?p=linux/kernel/git/stable/linux-2.4.34.y.git%3Ba=commit%3Bh=faa3369ac2ea7feb0dd266b6a5e8d6ab153cf925"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "http://secunia.com/advisories/29058"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://www.debian.org/security/2008/dsa-1503"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://www.kernel.org/pub/linux/kernel/v2.4/ChangeLog-2.4.34.6"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://www.kernel.org/pub/linux/kernel/v2.4/ChangeLog-2.4.35"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://www.securityfocus.com/bid/25029"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "http://www.vupen.com/english/advisories/2007/2690"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://git.kernel.org/?p=linux/kernel/git/stable/linux-2.4.34.y.git%3Ba=commit%3Bh=bd67d4c7b11cc33ebdc346bc8926d255b354cd64"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://git.kernel.org/?p=linux/kernel/git/stable/linux-2.4.34.y.git%3Ba=commit%3Bh=faa3369ac2ea7feb0dd266b6a5e8d6ab153cf925"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "http://secunia.com/advisories/29058"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.debian.org/security/2008/dsa-1503"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.kernel.org/pub/linux/kernel/v2.4/ChangeLog-2.4.34.6"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.kernel.org/pub/linux/kernel/v2.4/ChangeLog-2.4.35"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.securityfocus.com/bid/25029"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "http://www.vupen.com/english/advisories/2007/2690"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-310"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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