🛡️ CVE-2020-23903 on Debian — speex

⚪ Unknown ✅ No Known Exploit OSV

N/A

CVSS Score

0 Low4 Medium7 High9 Critical10

Description

A Divide by Zero vulnerability in the function static int read_samples of Speex v1.2 allows attackers to cause a denial of service (DoS) via a crafted WAV file.

Distribution advisory

This page covers CVE-2020-23903 as tracked by Debian, for the package speex. The fix is available in version 1.2~rc1.2-2; earlier versions remain affected.

How this vulnerability can be exploited

This issue can be reached with local access to the system, attack complexity is low, an attacker needs no privileges on the target. A user must be tricked into taking some action. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality none, integrity none, availability high.

Affected software

DEBIAN-CVE-2020-23903 is recorded against 1 package.

speex (fixed in 1.2~rc1.2-2)

Timeline and source

Published on 10 November 2021 and last revised on 15 August 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

security-tracker.debian.org (Advisory)

CVE-2020-23903 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Debian 11 (Root.io)Ubuntu

Details

Severity Unknown

CVSS Score N/A

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

CWE N/A

Public Exploit ✅ No

Source OSV

Published 2021-11-10

Updated 2026-08-20

Modified 2026-08-15

Fix URL N/A

Affected Packages

Software	From version	Fixed in
speex	—	1.2~rc1.2-2

References

ADVISORY https://security-tracker.debian.org/tracker/CVE-2020-23903

🔗 NVD 🔗 Mitre

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