CVE-2018-20199

Debian Security Advisory 5109-1

Severity Score

5.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

A NULL pointer dereference was discovered in ifilter_bank of libfaad/filtbank.c in Freeware Advanced Audio Decoder 2 (FAAD2) 2.8.8. The vulnerability causes a segmentation fault and application crash, which leads to denial of service because adding to windowed output is mishandled in the ONLY_LONG_SEQUENCE case.

Se ha descubierto una desreferencia de puntero NULL en ifilter_bank de libfaad/filtbank.c en Freeware Advanced Audio Decoder 2 (FAAD2) 2.8.8. Esta vulnerabilidad causa un error de segmentación y el cierre inesperado de la aplicación, lo que da lugar a una denegación de servicio en el caso ONLY_LONG_SEQUENCE.

Multiple vulnerabilities have been discovered in the freeware Advanced Audio Decoder, which may result in denial of service or potentially the execution of arbitrary code if malformed media files are processed.

*Credits: N/A

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2018-12-17 CVE Reserved
2018-12-18 CVE Published
2024-08-05 CVE Updated
2024-08-05 First Exploit
2025-04-28 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-476: NULL Pointer Dereference

CAPEC

References (5)

URL	Tag	Source
https://lists.debian.org/debian-lts-announce/2019/08/msg00033.html	Mailing List
https://lists.debian.org/debian-lts-announce/2021/10/msg00020.html	Mailing List

URL	Date	SRC
https://github.com/knik0/faad2/issues/24	2024-08-05

URL	Date	SRC

URL	Date	SRC
https://security.gentoo.org/glsa/202006-17	2022-04-22
https://www.debian.org/security/2022/dsa-5109	2022-04-22

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Audiocoding Search vendor "Audiocoding"		Freeware Advanced Audio Decoder 2 Search vendor "Audiocoding" for product "Freeware Advanced Audio Decoder 2"				< 2.9.0 Search vendor "Audiocoding" for product "Freeware Advanced Audio Decoder 2" and version " < 2.9.0"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				8.0 Search vendor "Debian" for product "Debian Linux" and version "8.0"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				9.0 Search vendor "Debian" for product "Debian Linux" and version "9.0"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				10.0 Search vendor "Debian" for product "Debian Linux" and version "10.0"		-		Affected