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CVE-2018-20198

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Date: December 17, 2018

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.

Language: C

Severity Score

Related Resources (8)

https://security.gentoo.org/glsa/202006-17
https://www.debian.org/security/2019/dsa-4522
https://seclists.org/bugtraq/2019/Sep/28
https://github.com/knik0/faad2/issues/23
https://nvd.nist.gov/vuln/detail/CVE-2018-20198
https://security-tracker.debian.org/tracker/CVE-2018-20198
https://lists.debian.org/debian-lts-announce/2019/05/msg00022.html
https://www.mend.io/vulnerability-database/CVE-2018-20198

Severity Score

Weakness Type (CWE)

NULL Pointer Dereference

CWE-476

Top Fix

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CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): REQUIRED
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): MEDIUM
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): PARTIAL
Additional information:

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