Vulnerability Name:

CVE-2018-20198 (CCN-154411)

Assigned:2018-12-16
Published:2018-12-16
Updated:2020-06-15
Summary: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 LONG_START_SEQUENCE case.
CVSS v3 Severity:5.5 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H)
4.9 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:U/RL:U/RC:R)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
3.3 Low (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L)
2.9 Low (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L/E:U/RL:U/RC:R)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Low
CVSS v2 Severity:4.3 Medium (CVSS v2 Vector: AV:N/AC:M/Au:N/C:N/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
1.7 Low (CCN CVSS v2 Vector: AV:L/AC:L/Au:S/C:N/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
Vulnerability Type:CWE-476
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2018-20198

Source: XF
Type: UNKNOWN
faad2-cve201820198-dos(154411)

Source: CCN
Type: FAAD2 GIT Repository
Null pointer dereference vulnerability in ifilter_bank(libfaad/filtbank.c:246) #23

Source: MISC
Type: Exploit, Third Party Advisory
https://github.com/knik0/faad2/issues/23

Source: MLIST
Type: UNKNOWN
[debian-lts-announce] 20190519 [SECURITY] [DLA 1791-1] faad2 security update

Source: BUGTRAQ
Type: UNKNOWN
20190916 [SECURITY] [DSA 4522-1] faad2 security update

Source: GENTOO
Type: UNKNOWN
GLSA-202006-17

Source: DEBIAN
Type: UNKNOWN
DSA-4522

Vulnerable Configuration:Configuration 1:
  • cpe:/a:audiocoding:freeware_advanced_audio_decoder_2:2.8.8:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:com.ubuntu.disco:def:2018201980000000
    V
    		CVE-2018-20198 on Ubuntu 19.04 (disco) - medium.
    2018-12-18
    oval:com.ubuntu.bionic:def:2018201980000000
    V
    		CVE-2018-20198 on Ubuntu 18.04 LTS (bionic) - medium.
    2018-12-18
    oval:com.ubuntu.xenial:def:2018201980000000
    V
    		CVE-2018-20198 on Ubuntu 16.04 LTS (xenial) - medium.
    2018-12-18
    oval:com.ubuntu.bionic:def:201820198000
    V
    		CVE-2018-20198 on Ubuntu 18.04 LTS (bionic) - medium.
    2018-12-17
    oval:com.ubuntu.cosmic:def:2018201980000000
    V
    		CVE-2018-20198 on Ubuntu 18.10 (cosmic) - medium.
    2018-12-17
    oval:com.ubuntu.cosmic:def:201820198000
    V
    		CVE-2018-20198 on Ubuntu 18.10 (cosmic) - medium.
    2018-12-17
    oval:com.ubuntu.trusty:def:201820198000
    V
    		CVE-2018-20198 on Ubuntu 14.04 LTS (trusty) - medium.
    2018-12-17
    oval:com.ubuntu.xenial:def:201820198000
    V
    		CVE-2018-20198 on Ubuntu 16.04 LTS (xenial) - medium.
    2018-12-17
    BACK
    audiocoding freeware advanced audio decoder 2 2.8.8