CVE-2018-20199

Public Exploit

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 ONLY_LONG_SEQUENCE case.

Category

5.5
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.51%
Vendor Advisory gentoo.org Vendor Advisory debian.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/knik0/faad2/issues/24 third party advisory exploit
https://lists.debian.org/debian-lts-announce/2019/08/msg00033.html third party advisory mailing list
https://security.gentoo.org/glsa/202006-17 third party advisory vendor advisory
https://lists.debian.org/debian-lts-announce/2021/10/msg00020.html third party advisory mailing list
https://www.debian.org/security/2022/dsa-5109 third party advisory vendor advisory

Frequently Asked Questions

What is the severity of CVE-2018-20199?
CVE-2018-20199 has been scored as a medium severity vulnerability.
How to fix CVE-2018-20199?
To fix CVE-2018-20199, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2018-20199 being actively exploited in the wild?
It is possible that CVE-2018-20199 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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