Vulnerability-Lookup

OESA-2024-1021 (CVE-2023-49990)

Vulnerability from osv_openeuler – Published: 2024-01-05 11:06 – Updated: 2026-08-06 11:06 – Source website

Summary

espeak-ng security update

Details

The eSpeak NG is a compact open source software text-to-speech synthesizer for Linux, Windows, Android and other operating systems. It supports 70 languages and accents. It is based on the eSpeak engine created by Jonathan Duddington.

Security Fix(es):

Espeak-ng 1.52-dev was discovered to contain a buffer-overflow via the function SetUpPhonemeTable at synthdata.c.(CVE-2023-49990)

Espeak-ng 1.52-dev was discovered to contain a Stack Buffer Underflow via the function CountVowelPosition at synthdata.c.(CVE-2023-49991)

Espeak-ng 1.52-dev was discovered to contain a Stack Buffer Overflow via the function RemoveEnding at dictionary.c.(CVE-2023-49992)

Espeak-ng 1.52-dev was discovered to contain a Buffer Overflow via the function ReadClause at readclause.c.(CVE-2023-49993)

Espeak-ng 1.52-dev was discovered to contain a Floating Point Exception via the function PeaksToHarmspect at wavegen.c.(CVE-2023-49994)

Severity

5.5 (Medium)


                    
                      CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

References

URL

Type

	https://www.openeuler.org/en/security/safety-bull…	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2023-49990	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2023-49991	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2023-49992	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2023-49993	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2023-49994	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "aarch64": [
          "espeak-ng-debuginfo-1.51-2.oe1.aarch64.rpm",
          "espeak-ng-devel-1.51-2.oe1.aarch64.rpm",
          "espeak-ng-debugsource-1.51-2.oe1.aarch64.rpm",
          "espeak-ng-1.51-2.oe1.aarch64.rpm"
        ],
        "noarch": [
          "espeak-ng-help-1.51-2.oe1.noarch.rpm"
        ],
        "src": [
          "espeak-ng-1.51-2.oe1.src.rpm"
        ],
        "x86_64": [
          "espeak-ng-1.51-2.oe1.x86_64.rpm",
          "espeak-ng-debugsource-1.51-2.oe1.x86_64.rpm",
          "espeak-ng-debuginfo-1.51-2.oe1.x86_64.rpm",
          "espeak-ng-devel-1.51-2.oe1.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:20.03-LTS-SP1",
        "name": "espeak-ng",
        "purl": "pkg:rpm/openEuler/espeak-ng\u0026distro=openEuler-20.03-LTS-SP1"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.51-2.oe1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "aarch64": [
          "espeak-ng-devel-1.51-2.oe1.aarch64.rpm",
          "espeak-ng-debuginfo-1.51-2.oe1.aarch64.rpm",
          "espeak-ng-debugsource-1.51-2.oe1.aarch64.rpm",
          "espeak-ng-1.51-2.oe1.aarch64.rpm"
        ],
        "noarch": [
          "espeak-ng-help-1.51-2.oe1.noarch.rpm"
        ],
        "src": [
          "espeak-ng-1.51-2.oe1.src.rpm"
        ],
        "x86_64": [
          "espeak-ng-debuginfo-1.51-2.oe1.x86_64.rpm",
          "espeak-ng-devel-1.51-2.oe1.x86_64.rpm",
          "espeak-ng-debugsource-1.51-2.oe1.x86_64.rpm",
          "espeak-ng-1.51-2.oe1.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:20.03-LTS-SP3",
        "name": "espeak-ng",
        "purl": "pkg:rpm/openEuler/espeak-ng\u0026distro=openEuler-20.03-LTS-SP3"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.51-2.oe1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "aarch64": [
          "espeak-ng-1.51-2.oe2003sp4.aarch64.rpm",
          "espeak-ng-debugsource-1.51-2.oe2003sp4.aarch64.rpm",
          "espeak-ng-debuginfo-1.51-2.oe2003sp4.aarch64.rpm",
          "espeak-ng-devel-1.51-2.oe2003sp4.aarch64.rpm"
        ],
        "noarch": [
          "espeak-ng-help-1.51-2.oe2003sp4.noarch.rpm"
        ],
        "src": [
          "espeak-ng-1.51-2.oe2003sp4.src.rpm"
        ],
        "x86_64": [
          "espeak-ng-devel-1.51-2.oe2003sp4.x86_64.rpm",
          "espeak-ng-debugsource-1.51-2.oe2003sp4.x86_64.rpm",
          "espeak-ng-1.51-2.oe2003sp4.x86_64.rpm",
          "espeak-ng-debuginfo-1.51-2.oe2003sp4.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:20.03-LTS-SP4",
        "name": "espeak-ng",
        "purl": "pkg:rpm/openEuler/espeak-ng\u0026distro=openEuler-20.03-LTS-SP4"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.51-2.oe2003sp4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "aarch64": [
          "espeak-ng-debugsource-1.51-2.oe2203.aarch64.rpm",
          "espeak-ng-devel-1.51-2.oe2203.aarch64.rpm",
          "espeak-ng-1.51-2.oe2203.aarch64.rpm",
          "espeak-ng-debuginfo-1.51-2.oe2203.aarch64.rpm",
          "espeak-ng-1.51-2.oe2203sp1.aarch64.rpm",
          "espeak-ng-debugsource-1.51-2.oe2203sp1.aarch64.rpm",
          "espeak-ng-debuginfo-1.51-2.oe2203sp1.aarch64.rpm",
          "espeak-ng-devel-1.51-2.oe2203sp1.aarch64.rpm",
          "espeak-ng-debugsource-1.51-2.oe2203sp2.aarch64.rpm",
          "espeak-ng-devel-1.51-2.oe2203sp2.aarch64.rpm",
          "espeak-ng-1.51-2.oe2203sp2.aarch64.rpm",
          "espeak-ng-debuginfo-1.51-2.oe2203sp2.aarch64.rpm"
        ],
        "noarch": [
          "espeak-ng-help-1.51-2.oe2203.noarch.rpm",
          "espeak-ng-help-1.51-2.oe2203sp1.noarch.rpm",
          "espeak-ng-help-1.51-2.oe2203sp2.noarch.rpm"
        ],
        "src": [
          "espeak-ng-1.51-2.oe2203.src.rpm",
          "espeak-ng-1.51-2.oe2203sp1.src.rpm",
          "espeak-ng-1.51-2.oe2203sp2.src.rpm"
        ],
        "x86_64": [
          "espeak-ng-debuginfo-1.51-2.oe2203.x86_64.rpm",
          "espeak-ng-1.51-2.oe2203.x86_64.rpm",
          "espeak-ng-debugsource-1.51-2.oe2203.x86_64.rpm",
          "espeak-ng-devel-1.51-2.oe2203.x86_64.rpm",
          "espeak-ng-debuginfo-1.51-2.oe2203sp1.x86_64.rpm",
          "espeak-ng-1.51-2.oe2203sp1.x86_64.rpm",
          "espeak-ng-devel-1.51-2.oe2203sp1.x86_64.rpm",
          "espeak-ng-debugsource-1.51-2.oe2203sp1.x86_64.rpm",
          "espeak-ng-1.51-2.oe2203sp2.x86_64.rpm",
          "espeak-ng-devel-1.51-2.oe2203sp2.x86_64.rpm",
          "espeak-ng-debugsource-1.51-2.oe2203sp2.x86_64.rpm",
          "espeak-ng-debuginfo-1.51-2.oe2203sp2.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:22.03-LTS",
        "name": "espeak-ng",
        "purl": "pkg:rpm/openEuler/espeak-ng\u0026distro=openEuler-22.03-LTS"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.51-2.oe2203sp2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "aarch64": [
          "espeak-ng-1.51-2.oe2203sp1.aarch64.rpm",
          "espeak-ng-debugsource-1.51-2.oe2203sp1.aarch64.rpm",
          "espeak-ng-debuginfo-1.51-2.oe2203sp1.aarch64.rpm",
          "espeak-ng-devel-1.51-2.oe2203sp1.aarch64.rpm"
        ],
        "noarch": [
          "espeak-ng-help-1.51-2.oe2203sp1.noarch.rpm"
        ],
        "src": [
          "espeak-ng-1.51-2.oe2203sp1.src.rpm"
        ],
        "x86_64": [
          "espeak-ng-debuginfo-1.51-2.oe2203sp1.x86_64.rpm",
          "espeak-ng-1.51-2.oe2203sp1.x86_64.rpm",
          "espeak-ng-devel-1.51-2.oe2203sp1.x86_64.rpm",
          "espeak-ng-debugsource-1.51-2.oe2203sp1.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:22.03-LTS-SP1",
        "name": "espeak-ng",
        "purl": "pkg:rpm/openEuler/espeak-ng\u0026distro=openEuler-22.03-LTS-SP1"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.51-2.oe2203sp1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "aarch64": [
          "espeak-ng-debugsource-1.51-2.oe2203sp2.aarch64.rpm",
          "espeak-ng-devel-1.51-2.oe2203sp2.aarch64.rpm",
          "espeak-ng-1.51-2.oe2203sp2.aarch64.rpm",
          "espeak-ng-debuginfo-1.51-2.oe2203sp2.aarch64.rpm"
        ],
        "noarch": [
          "espeak-ng-help-1.51-2.oe2203sp2.noarch.rpm"
        ],
        "src": [
          "espeak-ng-1.51-2.oe2203sp2.src.rpm"
        ],
        "x86_64": [
          "espeak-ng-1.51-2.oe2203sp2.x86_64.rpm",
          "espeak-ng-devel-1.51-2.oe2203sp2.x86_64.rpm",
          "espeak-ng-debugsource-1.51-2.oe2203sp2.x86_64.rpm",
          "espeak-ng-debuginfo-1.51-2.oe2203sp2.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:22.03-LTS-SP2",
        "name": "espeak-ng",
        "purl": "pkg:rpm/openEuler/espeak-ng\u0026distro=openEuler-22.03-LTS-SP2"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.51-2.oe2203sp2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "severity": "Medium"
  },
  "details": "The eSpeak NG is a compact open source software text-to-speech synthesizer for Linux, Windows, Android and other operating systems. It supports 70 languages and accents. It is based on the eSpeak engine created by Jonathan Duddington.\r\n\r\nSecurity Fix(es):\r\n\r\nEspeak-ng 1.52-dev was discovered to contain a buffer-overflow via the function SetUpPhonemeTable at synthdata.c.(CVE-2023-49990)\r\n\r\nEspeak-ng 1.52-dev was discovered to contain a Stack Buffer Underflow via the function CountVowelPosition at synthdata.c.(CVE-2023-49991)\r\n\r\nEspeak-ng 1.52-dev was discovered to contain a Stack Buffer Overflow via the function RemoveEnding at dictionary.c.(CVE-2023-49992)\r\n\r\nEspeak-ng 1.52-dev was discovered to contain a Buffer Overflow via the function ReadClause at readclause.c.(CVE-2023-49993)\r\n\r\nEspeak-ng 1.52-dev was discovered to contain a Floating Point Exception via the function PeaksToHarmspect at wavegen.c.(CVE-2023-49994)",
  "id": "OESA-2024-1021",
  "modified": "2026-08-06T11:06:28Z",
  "published": "2024-01-05T11:06:28Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2024-1021"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-49990"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-49991"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-49992"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-49993"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-49994"
    }
  ],
  "schema_version": "1.7.2",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "espeak-ng security update",
  "upstream": [
    "CVE-2023-49990",
    "CVE-2023-49991",
    "CVE-2023-49992",
    "CVE-2023-49993",
    "CVE-2023-49994"
  ]
}

CVE-2023-49990 (GCVE-0-2023-49990)

Vulnerability from cvelistv5 – Published: 2023-12-12 00:00 – Updated: 2025-11-04 18:20

Summary

Espeak-ng 1.52-dev was discovered to contain a buffer-overflow via the function SetUpPhonemeTable 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

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-03-26 19:54 UTC

CWE

n/a
CWE-120 - Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

Assigner

mitre mitre root

References

6 references

URL	Tags
https://github.com/espeak-ng/espeak-ng/issues/1824
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://lists.debian.org/debian-lts-announce/2025…
https://lists.fedoraproject.org/archives/list/pac…
https://lists.fedoraproject.org/archives/list/pac…

Show details on NVD website

JSON

To clipboard

{
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        "providerMetadata": {
          "dateUpdated": "2025-11-04T18:20:18.965Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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            "url": "https://github.com/espeak-ng/espeak-ng/issues/1824"
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            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Z5WW6RKHRWLEMCKCQ6UZCXWC5J7UWMUQ/"
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            "name": "FEDORA-2024-698737a3c5",
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              "x_transferred"
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            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2PZEBWPNKPAYJMIM3AS2RP3FL6FX3HS4/"
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        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
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            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "LOCAL",
              "availabilityImpact": "LOW",
              "baseScore": 5.3,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "LOW",
              "integrityImpact": "LOW",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "REQUIRED",
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            "other": {
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                "id": "CVE-2023-49990",
                "options": [
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                    "Exploitation": "poc"
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                    "Automatable": "no"
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                    "Technical Impact": "partial"
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                "timestamp": "2024-03-26T19:54:06.498727Z",
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                "description": "CWE-120 Buffer Copy without Checking Size of Input (\u0027Classic Buffer Overflow\u0027)",
                "lang": "en",
                "type": "CWE"
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        "providerMetadata": {
          "dateUpdated": "2024-10-09T13:28:15.116Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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          "tags": [
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          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Z5WW6RKHRWLEMCKCQ6UZCXWC5J7UWMUQ/"
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    "assignerShortName": "mitre",
    "cveId": "CVE-2023-49990",
    "datePublished": "2023-12-12T00:00:00.000Z",
    "dateReserved": "2023-12-04T00:00:00.000Z",
    "dateUpdated": "2025-11-04T18:20:18.965Z",
    "state": "PUBLISHED"
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  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2023-49991 (GCVE-0-2023-49991)

Vulnerability from cvelistv5 – Published: 2023-12-12 00:00 – Updated: 2025-11-04 18:20

Summary

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

Severity

No CVSS data available.

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-11-26 16:40 UTC

CWE

Assigner

mitre mitre root

References

6 references

URL	Tags
https://github.com/espeak-ng/espeak-ng/issues/1825
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://lists.debian.org/debian-lts-announce/2025…
https://lists.fedoraproject.org/archives/list/pac…
https://lists.fedoraproject.org/archives/list/pac…

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2025-11-04T18:20:21.377Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
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            "url": "https://github.com/espeak-ng/espeak-ng/issues/1825"
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CVE-2023-49992 (GCVE-0-2023-49992)

Vulnerability from cvelistv5 – Published: 2023-12-12 00:00 – Updated: 2025-11-04 18:20

Summary

Espeak-ng 1.52-dev was discovered to contain a Stack Buffer Overflow via the function RemoveEnding at dictionary.c.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

6 references

URL	Tags
https://github.com/espeak-ng/espeak-ng/issues/1827
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://lists.debian.org/debian-lts-announce/2025…
https://lists.fedoraproject.org/archives/list/pac…
https://lists.fedoraproject.org/archives/list/pac…

Show details on NVD website

JSON

To clipboard

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CVE-2023-49993 (GCVE-0-2023-49993)

Vulnerability from cvelistv5 – Published: 2023-12-12 00:00 – Updated: 2025-11-04 18:20

Summary

Espeak-ng 1.52-dev was discovered to contain a Buffer Overflow via the function ReadClause at readclause.c.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

6 references

URL	Tags
https://github.com/espeak-ng/espeak-ng/issues/1826
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://lists.debian.org/debian-lts-announce/2025…
https://lists.fedoraproject.org/archives/list/pac…
https://lists.fedoraproject.org/archives/list/pac…

Show details on NVD website

JSON

To clipboard

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CVE-2023-49994 (GCVE-0-2023-49994)

Vulnerability from cvelistv5 – Published: 2023-12-12 00:00 – Updated: 2025-11-04 18:20

Summary

Espeak-ng 1.52-dev was discovered to contain a Floating Point Exception via the function PeaksToHarmspect at wavegen.c.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

6 references

URL	Tags
https://github.com/espeak-ng/espeak-ng/issues/1823
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://lists.debian.org/debian-lts-announce/2025…
https://lists.fedoraproject.org/archives/list/pac…
https://lists.fedoraproject.org/archives/list/pac…

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

OESA-2024-1021 (CVE-2023-49990)

CVE-2023-49990 (GCVE-0-2023-49990)

CVE-2023-49991 (GCVE-0-2023-49991)

CVE-2023-49992 (GCVE-0-2023-49992)

CVE-2023-49993 (GCVE-0-2023-49993)

CVE-2023-49994 (GCVE-0-2023-49994)

Tags

Sightings

Nomenclature

Related by attack behaviour