NULL pointer dereference - CVE-2018-20362
Published: December 22, 2018 / Updated: August 4, 2020
Vulnerability identifier: #VU33385
CSH Severity: Medium
CVSS v4: 6.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2018-20362
CWE-ID: CWE-476
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error 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 because adding to windowed output is mishandled in the EIGHT_SHORT_SEQUENCE case. A remote attacker can perform a denial of service (DoS) attack.
Affected software
Gentoo Linux
faad2 (Alpine package)
faad2 (Alpine package)
How to mitigate CVE-2018-20362
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.
faad2 (Alpine package) - update to 2.9.0-r0