Freeware Advanced Audio Decoder 2.8.8 libfaad/ps_dec.c ps_mix_phase out-of-bounds

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.3$0-$5k0.00

Summaryinfo

A vulnerability marked as critical has been reported in Freeware Advanced Audio Decoder 2.8.8. Impacted is the function ps_mix_phase of the file libfaad/ps_dec.c. This manipulation causes out-of-bounds. This vulnerability is tracked as CVE-2019-6956. The attack is possible to be carried out remotely. No exploit exists.

Detailsinfo

A vulnerability classified as critical was found in Freeware Advanced Audio Decoder 2.8.8 (Audio Processing Software). Affected by this vulnerability is the function ps_mix_phase of the file libfaad/ps_dec.c. The manipulation with an unknown input leads to a out-of-bounds vulnerability. The CWE definition for the vulnerability is CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

An issue was discovered in Freeware Advanced Audio Decoder 2 (FAAD2) 2.8.8. It is a buffer over-read in ps_mix_phase in libfaad/ps_dec.c.

The bug was discovered 01/25/2019. The weakness was disclosed 01/25/2019 (Website). It is possible to read the advisory at github.com. This vulnerability is known as CVE-2019-6956 since 01/25/2019. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 255182 (Linux Distros Unpatched Vulnerability : CVE-2019-6956), which helps to determine the existence of the flaw in a target environment.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at Tenable (255182). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.3
VulDB Meta Temp Score: 8.3

VulDB Base Score: 8.8
VulDB Temp Score: 8.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Out-of-bounds
CWE: CWE-125 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 255182
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2019-6956

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/25/2019 🔍
01/25/2019 +0 days 🔍
01/25/2019 +0 days 🔍
01/25/2019 +0 days 🔍
01/26/2019 +1 days 🔍
08/26/2025 +2404 days 🔍

Sourcesinfo

Advisory: DLA 1899-1
Status: Not defined

CVE: CVE-2019-6956 (🔍)
GCVE (CVE): GCVE-0-2019-6956
GCVE (VulDB): GCVE-100-130267

Entryinfo

Created: 01/26/2019 18:53
Updated: 08/26/2025 13:17
Changes: 01/26/2019 18:53 (56), 05/06/2020 11:16 (1), 07/03/2023 14:45 (3), 08/26/2025 13:17 (17)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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