ubuntu-cve-2023-49991
Vulnerability from osv_ubuntu
Published
2023-12-12 14:15
Modified
2026-04-22 07:45
Summary
Details

Espeak-ng 1.52-dev was discovered to contain a Stack Buffer Underflow via the function CountVowelPosition at synthdata.c.

Severity
5.3 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
N/A (UNKNOWN)
medium
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "espeak-ng",
            "binary_version": "1.49.2+dfsg-1ubuntu0.1~esm1"
          },
          {
            "binary_name": "espeak-ng-data",
            "binary_version": "1.49.2+dfsg-1ubuntu0.1~esm1"
          },
          {
            "binary_name": "espeak-ng-espeak",
            "binary_version": "1.49.2+dfsg-1ubuntu0.1~esm1"
          },
          {
            "binary_name": "libespeak-ng-libespeak1",
            "binary_version": "1.49.2+dfsg-1ubuntu0.1~esm1"
          },
          {
            "binary_name": "libespeak-ng1",
            "binary_version": "1.49.2+dfsg-1ubuntu0.1~esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:18.04:LTS",
        "name": "espeak-ng",
        "purl": "pkg:deb/ubuntu/espeak-ng@1.49.2+dfsg-1ubuntu0.1~esm1?arch=source\u0026distro=esm-infra/bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.49.2+dfsg-1ubuntu0.1~esm1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.49.1+dfsg-2",
        "1.49.2+dfsg-1"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "espeak-ng",
            "binary_version": "1.50+dfsg-6ubuntu0.1"
          },
          {
            "binary_name": "espeak-ng-data",
            "binary_version": "1.50+dfsg-6ubuntu0.1"
          },
          {
            "binary_name": "espeak-ng-espeak",
            "binary_version": "1.50+dfsg-6ubuntu0.1"
          },
          {
            "binary_name": "libespeak-ng-libespeak1",
            "binary_version": "1.50+dfsg-6ubuntu0.1"
          },
          {
            "binary_name": "libespeak-ng1",
            "binary_version": "1.50+dfsg-6ubuntu0.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "espeak-ng",
        "purl": "pkg:deb/ubuntu/espeak-ng@1.50+dfsg-6ubuntu0.1?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.50+dfsg-6ubuntu0.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.49.2+dfsg-8",
        "1.50+dfsg-4",
        "1.50+dfsg-5",
        "1.50+dfsg-6"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "espeak-ng",
            "binary_version": "1.50+dfsg-10ubuntu0.1"
          },
          {
            "binary_name": "espeak-ng-data",
            "binary_version": "1.50+dfsg-10ubuntu0.1"
          },
          {
            "binary_name": "espeak-ng-espeak",
            "binary_version": "1.50+dfsg-10ubuntu0.1"
          },
          {
            "binary_name": "libespeak-ng-libespeak1",
            "binary_version": "1.50+dfsg-10ubuntu0.1"
          },
          {
            "binary_name": "libespeak-ng1",
            "binary_version": "1.50+dfsg-10ubuntu0.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "espeak-ng",
        "purl": "pkg:deb/ubuntu/espeak-ng@1.50+dfsg-10ubuntu0.1?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.50+dfsg-10ubuntu0.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.50+dfsg-7build2",
        "1.50+dfsg-8",
        "1.50+dfsg-9",
        "1.50+dfsg-10"
      ]
    }
  ],
  "aliases": [],
  "details": "Espeak-ng 1.52-dev was discovered to contain a Stack Buffer Underflow via the function CountVowelPosition at synthdata.c.",
  "id": "UBUNTU-CVE-2023-49991",
  "modified": "2026-04-22T07:45:29Z",
  "published": "2023-12-12T14:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2023-49991"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2023-49991"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-6858-1"
    }
  ],
  "related": [
    "USN-6858-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2023-49991"
  ]
}



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