CVE-2012-2100

Published Jul 3, 2012

Last updated a year ago

Overview

Description: The ext4_fill_flex_info function in fs/ext4/super.c in the Linux kernel before 3.2.2, on the x86 platform and unspecified other platforms, allows user-assisted remote attackers to trigger inconsistent filesystem-groups data and possibly cause a denial of service via a malformed ext4 filesystem containing a super block with a large FLEX_BG group size (aka s_log_groups_per_flex value). NOTE: this vulnerability exists because of an incomplete fix for CVE-2009-4307.
Source: secalert@redhat.com
NVD status: Modified

Hype score: Not currently trending

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-189

Configurations

[
  {
    "nodes": [
      {
        "negate": false,
        "cpeMatch": [
          {
            "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:x86:*",
            "vulnerable": true,
            "matchCriteriaId": "5E08D2B1-601B-4184-8C01-3F7BB9258146",
            "versionEndIncluding": "3.2.1"
          },
          {
            "criteria": "cpe:2.3:o:linux:linux_kernel:3.2:*:*:*:*:*:x86:*",
            "vulnerable": true,
            "matchCriteriaId": "7D47A395-821D-4BFF-996E-E849D9A40217"
          }
        ],
        "operator": "OR"
      }
    ]
  }
]

Overview

Social media

Risk scores

CVSS 2.0

Weaknesses

Configurations

References