ubuntu-cve-2018-6797
Vulnerability from osv_ubuntu
Published
2018-04-14 00:00
Modified
2026-06-24 13:05
Summary
Details

An issue was discovered in Perl 5.18 through 5.26. A crafted regular expression can cause a heap-based buffer overflow, with control over the bytes written.

Severity
9.8 (Critical)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
N/A (UNKNOWN)
medium
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libcgi-fast-perl",
            "binary_version": "5.18.2-2ubuntu1.7+esm7"
          },
          {
            "binary_name": "libperl5.18",
            "binary_version": "5.18.2-2ubuntu1.7+esm7"
          },
          {
            "binary_name": "perl",
            "binary_version": "5.18.2-2ubuntu1.7+esm7"
          },
          {
            "binary_name": "perl-base",
            "binary_version": "5.18.2-2ubuntu1.7+esm7"
          },
          {
            "binary_name": "perl-debug",
            "binary_version": "5.18.2-2ubuntu1.7+esm7"
          },
          {
            "binary_name": "perl-modules",
            "binary_version": "5.18.2-2ubuntu1.7+esm7"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:14.04:LTS",
        "name": "perl",
        "purl": "pkg:deb/ubuntu/perl@5.18.2-2ubuntu1.7+esm7?arch=source\u0026distro=esm-infra-legacy/trusty"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "5.14.2-21build1",
        "5.18.1-4",
        "5.18.1-4build1",
        "5.18.1-5",
        "5.18.2-2",
        "5.18.2-2ubuntu1",
        "5.18.2-2ubuntu1.1",
        "5.18.2-2ubuntu1.3",
        "5.18.2-2ubuntu1.4",
        "5.18.2-2ubuntu1.6",
        "5.18.2-2ubuntu1.7",
        "5.18.2-2ubuntu1.7+esm3",
        "5.18.2-2ubuntu1.7+esm4",
        "5.18.2-2ubuntu1.7+esm5",
        "5.18.2-2ubuntu1.7+esm7"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libperl5.22",
            "binary_version": "5.22.1-9ubuntu0.3"
          },
          {
            "binary_name": "perl",
            "binary_version": "5.22.1-9ubuntu0.3"
          },
          {
            "binary_name": "perl-base",
            "binary_version": "5.22.1-9ubuntu0.3"
          },
          {
            "binary_name": "perl-debug",
            "binary_version": "5.22.1-9ubuntu0.3"
          },
          {
            "binary_name": "perl-modules-5.22",
            "binary_version": "5.22.1-9ubuntu0.3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "perl",
        "purl": "pkg:deb/ubuntu/perl@5.22.1-9ubuntu0.3?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.22.1-9ubuntu0.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "5.20.2-6",
        "5.22.1-3",
        "5.22.1-4",
        "5.22.1-5",
        "5.22.1-7",
        "5.22.1-8",
        "5.22.1-9",
        "5.22.1-9ubuntu0.2"
      ]
    }
  ],
  "aliases": [],
  "details": "An issue was discovered in Perl 5.18 through 5.26. A crafted regular expression can cause a heap-based buffer overflow, with control over the bytes written.",
  "id": "UBUNTU-CVE-2018-6797",
  "modified": "2026-06-24T13:05:48Z",
  "published": "2018-04-14T00:00:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2018-6797"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-3625-1"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2018-6797"
    }
  ],
  "related": [
    "USN-3625-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2018-6797"
  ]
}



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