CVE-2022-35055: 
NixOS vulnerability analysis and mitigation

OTFCC commit 617837b contains a heap buffer overflow vulnerability (CVE-2022-35055) that affects the otfccdump functionality via /release-x64/otfccdump+0x6c0473. The vulnerability affects OTFCC versions up to and including 0.10.4 (NVD).

The vulnerability is classified as a heap buffer overflow (CWE-787: Out-of-bounds Write) with a CVSS v3.1 Base Score of 6.5 (MEDIUM). The attack vector is network-based (AV:N) with low attack complexity (AC:L), requiring no privileges (PR:N) but user interaction (UI:R). The scope is unchanged (S:U) with no impact on confidentiality (C:N) or integrity (I:N), but high impact on availability (A:H) (NVD).

The heap buffer overflow vulnerability primarily affects system availability, with potential for program crashes or denial of service. The vulnerability has no direct impact on system confidentiality or integrity (NVD).

The vulnerability has publicly available proof of concept code. Technical details and exploit code are available in public repositories (Github POC).

The vulnerability has been fixed in newer versions of the software. For Debian systems, the fix has been implemented in bullseye distribution, while bookworm, trixie, and sid distributions remain vulnerable (Debian Tracker).