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CVE-2023-49991

Date: December 11, 2023

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

Language: C

Severity Score

5.3

Related Resources (10)

Url: https://github.com/espeak-ng/espeak-ng/issues/1825

Url: https://lists.debian.org/debian-lts-announce/2025/05/msg00050.html

Url: https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2PZEBWPNKPAYJMIM3AS2RP3FL6FX3HS4/

Url: https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/Z5WW6RKHRWLEMCKCQ6UZCXWC5J7UWMUQ/

Url: https://people.canonical.com/~ubuntu-security/cve/CVE-2023-49991

Url: https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Z5WW6RKHRWLEMCKCQ6UZCXWC5J7UWMUQ/

Url: https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2PZEBWPNKPAYJMIM3AS2RP3FL6FX3HS4/

Url: https://security-tracker.debian.org/tracker/CVE-2023-49991

Url: https://nvd.nist.gov/vuln/detail/CVE-2023-49991

Url: https://www.mend.io/vulnerability-database/CVE-2023-49991

Severity Score

5.3

Weakness Type (CWE)

Out-of-bounds Write

CWE-787

CVSS v3.1

Base Score:	5.3
Attack Vector (AV):	LOCAL
Attack Complexity (AC):	LOW
Privileges Required (PR):	NONE
User Interaction (UI):	REQUIRED
Scope (S):	UNCHANGED
Confidentiality (C):	LOW
Integrity (I):	LOW
Availability (A):	LOW

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