What’s Vulnerable › Vulnerabilities

CVE-2018-20198

• Severity: medium (CVSS 5.5 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.2% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2018-12-18 · updated 2026-06-17
• Weakness: CWE-476

Description

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.

Affected products

• Audiocoding Freeware Advanced Audio Decoder 2: 2.8.8

References

• https://github.com/knik0/faad2/issues/23
• https://lists.debian.org/debian-lts-announce/2019/05/msg00022.html
• https://seclists.org/bugtraq/2019/Sep/28
• https://security.gentoo.org/glsa/202006-17
• https://www.debian.org/security/2019/dsa-4522
• https://github.com/knik0/faad2/issues/23
• https://lists.debian.org/debian-lts-announce/2019/05/msg00022.html
• https://seclists.org/bugtraq/2019/Sep/28
• https://security.gentoo.org/glsa/202006-17
• https://www.debian.org/security/2019/dsa-4522

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