PT-2018-3077 · Audiocoding+1 · Faad2+1

Fantasy7082 · Published 2018-12-17 · Updated 2025-07-03 · CVE-2018-20362

Positive Technologies (AI Summary)

CVSS v2.0

7.1

High

Base vector

AV:N/AC:M/Au:N/C:N/I:N/A:C

Name of the Vulnerable Software and Affected Versions Freeware Advanced Audio Decoder 2 (FAAD2) version 2.8.8

Description A NULL pointer dereference was discovered in the ifilter bank function of libfaad/filtbank.c. This issue causes a segmentation fault and application crash due to mishandling of adding to windowed output in the EIGHT SHORT SEQUENCE case. The vulnerability can be exploited by a remote attacker to cause a denial of service when processing the EIGHT SHORT SEQUENCE case.

Recommendations For Freeware Advanced Audio Decoder 2 (FAAD2) version 2.8.8, consider disabling the ifilter bank function in libfaad/filtbank.c as a temporary workaround to prevent exploitation. However, at the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

ALT-PU-2021-1316

ALT-PU-2021-1341

ALT-PU-2023-1579

BDU:2019-03650

CVE-2018-20362

DLA-1791-1

DSA-4522-1

OPENSUSE-SU-2025:15214-1

Affected Products

Alt Linux

Faad2

References · 29

• 🔥 https://github.com/knik0/faad2/issues/26 · Exploit
• https://osv.dev/vulnerability/DLA-1791-1 · Vendor Advisory
• https://bdu.fstec.ru/vul/2019-03650 · Security Note
• https://security.gentoo.org/glsa/202006-17 · Vendor Advisory
• https://wiki.astralinux.ru/astra-linux-se81-bulletin-20200429SE81 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2018-20362 · Vendor Advisory
• https://debian.org/security/2019/dsa-4522 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2025:15214-1 · Vendor Advisory
• https://osv.dev/vulnerability/ALPINE-CVE-2018-20362 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2018-20362 · Security Note
• https://osv.dev/vulnerability/CVE-2018-20362 · Vendor Advisory
• https://ubuntu.com/security/CVE-2018-20362 · Vendor Advisory
• https://osv.dev/vulnerability/DSA-4522-1 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2018-20362 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2018-20362 · Security Note