UBUNTU-CVE-2017-9438 (CVE-2017-9438)

Vulnerability from osv_ubuntu – Published: 2017-06-05 17:29 – Updated: 2026-04-22 07:38 – Source website
VLAI
Details

libyara/re.c in the regexp module in YARA 3.5.0 allows remote attackers to cause a denial of service (stack consumption) via a crafted rule (involving hex strings) that is mishandled in the _yr_re_emit function, a different vulnerability than CVE-2017-9304.

Severity
7.5 (High)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
N/A (UNKNOWN)
low
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "libyara3",
            "binary_version": "3.4.0+dfsg-2ubuntu0.1~esm1"
          },
          {
            "binary_name": "python-yara",
            "binary_version": "3.4.0+dfsg-2ubuntu0.1~esm1"
          },
          {
            "binary_name": "python3-yara",
            "binary_version": "3.4.0+dfsg-2ubuntu0.1~esm1"
          },
          {
            "binary_name": "yara",
            "binary_version": "3.4.0+dfsg-2ubuntu0.1~esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:16.04:LTS",
        "name": "yara",
        "purl": "pkg:deb/ubuntu/yara@3.4.0+dfsg-2ubuntu0.1~esm1?arch=source\u0026distro=esm-apps/xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.4.0+dfsg-2ubuntu0.1~esm1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.4.0+dfsg-2",
        "3.4.0+dfsg-2build1"
      ]
    }
  ],
  "aliases": [],
  "details": "libyara/re.c in the regexp module in YARA 3.5.0 allows remote attackers to cause a denial of service (stack consumption) via a crafted rule (involving hex strings) that is mishandled in the _yr_re_emit function, a different vulnerability than CVE-2017-9304.",
  "id": "UBUNTU-CVE-2017-9438",
  "modified": "2026-04-22T07:38:16Z",
  "published": "2017-06-05T17:29:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2017-9438"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/VirusTotal/yara/issues/674"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/VirusTotal/yara/commit/10e8bd3071677dd1fa76beeef4bc2fc427cea5e7"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2017-9438"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-8080-1"
    }
  ],
  "related": [
    "USN-8080-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "low",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2017-9438"
  ]
}



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