CVE-2023-49992 — Out-of-bounds Write in Espeak-ng

CWE-787 — Out-of-bounds WriteCWE-121 — Stack-based Buffer Overflow9 documents8 sources
Severity
5.3MEDIUMNVD
EPSS
0.0%
top 94.59%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
4
Espeak-ngDebian Espeak-ngMsrc Azl3 Espeak-ng 1.51.1-1 ON Azure Linux 3.0+1 more
Timeline
PublishedDec 12
Latest updateAug 21

Description

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

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:LExploitability: 1.8 | Impact: 3.4

Affected Packages6 packages

▶debiandebian/espeak-ng< espeak-ng 1.51+dfsg-10+deb12u1 (bookworm)
▶Debianespeak-ng/espeak-ng< 1.50+dfsg-7+deb11u2+3
▶Ubuntuespeak-ng/espeak-ng< 1.50+dfsg-6ubuntu0.1+2

🔴Vulnerability Details

3
OSV
espeak-ng vulnerabilities↗2024-07-01
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OSV
CVE-2023-49992: Espeak-ng 1↗2023-12-12
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GHSA
GHSA-2g42-jgwr-h29g: Espeak-ng 1↗2023-12-12
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📋Vendor Advisories

4
Ubuntu
eSpeak NG vulnerabilities↗2024-07-01
▶
Red Hat
espeak-ng: buffer overflow in RemoveEnding at dictionary.c↗2023-12-12
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Microsoft
Espeak-ng 1.52-dev was discovered to contain a Stack Buffer Overflow via the function RemoveEnding at dictionary.c.↗2023-12-12
▶
Debian
CVE-2023-49992: espeak-ng - Espeak-ng 1.52-dev was discovered to contain a Stack Buffer Overflow via the fun...↗2023
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📄Research Papers

1
arXiv
A Practical Guideline and Taxonomy to LLVM's Control Flow Integrity↗2025-08-21
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