CVE-2022-36148: 
NixOS vulnerability analysis and mitigation

CVE-2022-36148 is a vulnerability discovered in fdkaac software, specifically in commit 53fe239. The issue involves a floating point exception (FPE) that occurs via the wav_open function located in the /src/wav_reader.c file (Debian Security, CVE Mitre).

The vulnerability manifests as a floating point exception in the wav_open function at line 210 of /src/wav_reader.c. The issue can be triggered when processing WAV files, specifically during the opening process. This was confirmed through testing with AddressSanitizer which detected a DEADLYSIGNAL FPE (Floating Point Exception) on the affected code path (GitHub Issue).

The vulnerability results in a crash of the application when processing certain WAV files, leading to a denial of service condition. The impact is considered relatively low as it only affects the CLI tool and has no broader security implications (Debian Security).

The vulnerability can be triggered by processing specially crafted WAV files. A proof of concept exists that demonstrates the issue can be reproduced using the command './fdkaac -m3 [sample file] -o /dev/null' (GitHub Issue).

A fix for this vulnerability was implemented in version 1.0.3 of fdkaac, as documented in commit 4ec1422bd951a137225ffa4052da120e2ab0a0f4 (Debian Security).