ubuntu-cve-2018-14337
Vulnerability from osv_ubuntu
Published
2018-07-17 03:29
Modified
2026-04-22 07:38
Summary
Details

The CHECK macro in mrbgems/mruby-sprintf/src/sprintf.c in mruby 1.4.1 contains a signed integer overflow, possibly leading to out-of-bounds memory access because the mrb_str_resize function in string.c does not check for a negative length.

Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
N/A (UNKNOWN)
medium
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "mruby",
            "binary_version": "1.2.0+20160315+git4f20d58a-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "mruby",
        "purl": "pkg:deb/ubuntu/mruby@1.2.0+20160315+git4f20d58a-1?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.1.0+20150817+gita1731254-1",
        "1.1.0+20150906+git1cbbb7e1-1",
        "1.2.0+20160315+git4f20d58a-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "mruby",
            "binary_version": "1.4.0-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "mruby",
        "purl": "pkg:deb/ubuntu/mruby@1.4.0-1?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.3.0-1",
        "1.3.0+20170925+git38185028-1",
        "1.3.0+20171029+git77edafb0-1",
        "1.4.0-1"
      ]
    }
  ],
  "aliases": [],
  "details": "The CHECK macro in mrbgems/mruby-sprintf/src/sprintf.c in mruby 1.4.1 contains a signed integer overflow, possibly leading to out-of-bounds memory access because the mrb_str_resize function in string.c does not check for a negative length.",
  "id": "UBUNTU-CVE-2018-14337",
  "modified": "2026-04-22T07:38:41Z",
  "published": "2018-07-17T03:29:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2018-14337"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/mruby/mruby/issues/4062"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/mruby/mruby/commit/695f29cd604787f43be1af16e38d13610bf8312b"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/mruby/mruby/commit/adb1eae912659d680a9c5b7832e22cf73d36a69a"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2018-14337"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2018-14337"
  ]
}



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