{
  "id": "CVE-2015-1593",
  "sourceIdentifier": "cve@mitre.org",
  "published": "2015-03-16T10:59:07.727",
  "lastModified": "2018-01-05T02:30:00.290",
  "vulnStatus": "Modified",
  "descriptions": [
    {
      "lang": "en",
      "value": "The stack randomization feature in the Linux kernel before 3.19.1 on 64-bit platforms uses incorrect data types for the results of bitwise left-shift operations, which makes it easier for attackers to bypass the ASLR protection mechanism by predicting the address of the top of the stack, related to the randomize_stack_top function in fs/binfmt_elf.c and the stack_maxrandom_size function in arch/x86/mm/mmap.c."
    },
    {
      "lang": "es",
      "value": "La caracter\u00edstica de aleatoriedad de la pila en el Kernel de Linux anterior a 3.19.1 en plataformas de 64-bits utiliza un tipo de datos incorrecto por el resultado de operaciones de bitwise left-shift, lo que hace que sea m\u00e1s f\u00e1cil para atacantes evadir el mecanismo de protecci\u00f3n ASLR prediciendo direcciones del tope de la pila, relacionado con la funci\u00f3n andomize_stack_top en fs/binfmt_elf.c y la funci\u00f3n stack_maxrandom_size en arch/x86/mm/mmap.c."
    }
  ],
  "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",
          "accessVector": "NETWORK",
          "accessComplexity": "LOW",
          "authentication": "NONE",
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "NONE",
          "availabilityImpact": "NONE",
          "baseScore": 5.0
        },
        "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:o:linux:linux_kernel:*:*:*:*:*:*:x64:*",
              "versionEndIncluding": "3.18.9",
              "matchCriteriaId": "6F6B5B8A-E1EE-477E-9908-76004F722CCC"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=4e7c22d447bb6d7e37bfe39ff658486ae78e8d77",
      "source": "cve@mitre.org",
      "tags": [
        "Exploit"
      ]
    },
    {
      "url": "http://hmarco.org/bugs/linux-ASLR-integer-overflow.html",
      "source": "cve@mitre.org",
      "tags": [
        "Exploit"
      ]
    },
    {
      "url": "http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00009.html",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00015.html",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://rhn.redhat.com/errata/RHSA-2015-1137.html",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://rhn.redhat.com/errata/RHSA-2015-1138.html",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://rhn.redhat.com/errata/RHSA-2015-1221.html",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.debian.org/security/2015/dsa-3170",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.19.1",
      "source": "cve@mitre.org",
      "tags": [
        "Vendor Advisory"
      ]
    },
    {
      "url": "http://www.openwall.com/lists/oss-security/2015/02/13/13",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securityfocus.com/bid/72607",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.ubuntu.com/usn/USN-2560-1",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.ubuntu.com/usn/USN-2561-1",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.ubuntu.com/usn/USN-2562-1",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.ubuntu.com/usn/USN-2563-1",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.ubuntu.com/usn/USN-2564-1",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.ubuntu.com/usn/USN-2565-1",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://access.redhat.com/errata/RHSA-2019:3517",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1192519",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://github.com/torvalds/linux/commit/4e7c22d447bb6d7e37bfe39ff658486ae78e8d77",
      "source": "cve@mitre.org",
      "tags": [
        "Exploit"
      ]
    },
    {
      "url": "https://lkml.org/lkml/2015/1/7/811",
      "source": "cve@mitre.org"
    }
  ]
}