Medium severity · published Nov 10, 2021
CVE-2020-23904
A stack buffer overflow in speexenc.c of Speex v1.2 allows attackers to cause a denial of service (DoS) via a crafted WAV file
5.5
CVSS
0.7%
EPSS
No
On KEV
Description
A stack buffer overflow in speexenc.c of Speex v1.2 allows attackers to cause a denial of service (DoS) via a crafted WAV file. NOTE: the vendor states "I cannot reproduce it" and it "is a demo program.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 54% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SP
Speex · Xiph
1.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-23904
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-23904
Exploit
https://github.com/xiph/speex/issues/14
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–
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