Multiple vulnerabilities in Speex

Published: 2021-11-10 | Updated: 2022-11-15

Risk	Low
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2020-23903 CVE-2020-23904
CWE-ID	CWE-369 CWE-20
Exploitation vector	Network
Public exploit	N/A
Vulnerable software Subscribe	speex Other software / Other software solutions
Vendor	www.speex.org

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Division by zero

EUVDB-ID: #VU69350

Risk: Low

CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-23903

CWE-ID: CWE-369 - Divide By Zero

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a division by zero error when handling .wav files. A remote attacker can trick the victim into opening a specially crafted .wav file and crash the application.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

speex: 0.0.1 - 1.1.12

External links

http://github.com/xiph/speex/issues/13
http://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/R3SEV2ZRR47GSD3M7O5PH4XEJMKJJNG2/
http://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LXCRAYNW5ESCE2PIGTUXZNZHNYFLJ6PX/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Input validation error

EUVDB-ID: #VU69351

Risk: Low

CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-23904

CWE-ID: CWE-20 - Improper input validation