CVE-2015-4199

Published Jun 27, 2015

Last updated 8 years ago

Overview

Description: Race condition in the IPv6-to-IPv4 functionality in Cisco IOS 15.3S in the Performance Routing Engine (PRE) module on UBR devices allows remote attackers to cause a denial of service (NULL pointer free and module crash) by triggering intermittent connectivity with many IPv6 CPE devices, aka Bug ID CSCug47366.
Source: ykramarz@cisco.com
NVD status: Analyzed

Risk scores

CVSS 2.0

Type: Primary
Base score: 7.1
Impact score: 6.9
Exploitability score: 8.6
Vector string: AV:N/AC:M/Au:N/C:N/I:N/A:C

Weaknesses

nvd@nist.gov: CWE-362

Hype score: Not currently trending

Configurations

[
  {
    "nodes": [
      {
        "negate": false,
        "cpeMatch": [
          {
            "criteria": "cpe:2.3:o:cisco:ios:15.3s:*:*:*:*:*:*:*",
            "vulnerable": true,
            "matchCriteriaId": "2D105A75-3C37-4B44-8248-6037C98F2F93"
          }
        ],
        "operator": "OR"
      }
    ]
  }
]

References