flirc-bin

maintainer jsteel · 23 votes · scanned 2026-08-03 00:08:14.047287

MEDIUM

Why flagged The PKGBUILD downloads a prebuilt binary .deb from apt.fury.io, which is a third-party package hosting service (Gemfury) used by many vendors including Flirc as their official APT repository. Flirc does legitimately use Gemfury/apt.fury.io as their official distribution channel, so this is not a random personal host. However, it is still a prebuilt binary from a non-distro, non-upstream-VCS source, and the integrity check is only an MD5 sum (weak, no SHA256). The binary is extracted and installed directly into pkgdir without any verification beyond the weak checksum. This constitutes a real supply-chain concern: if Gemfury or the Flirc account there were compromised, a malicious binary would be installed. The use of a legitimate vendor-controlled third-party host reduces but does not eliminate the risk compared to a purely personal/unofficial host. Medium severity is appropriate.

Triggered rules

MEDIUM source=() URL on a non-standard host source_untrusted_domain

One or more source=() URLs point to a host outside the trusted allowlist (github.com, gitlab.com, codeberg.org, pypi.org, …).

PKGBUILD:20 source=(https://apt.fury.io/flirc/files/${_dirstr}/flirc_${_pkgver}_${_debrel}.deb)

MEDIUM AI review llm_review

An AI model (anthropic/claude-4.6-sonnet-20260217) reviewed this and agrees it is MEDIUM (confidence 72%): The PKGBUILD downloads a prebuilt binary .deb from apt.fury.io, which is a third-party package hosting service (Gemfury) used by many vendors including Flirc as their official APT repository. Flirc does legitimately use Gemfury/apt.fury.io as their official distribution channel, so this is not a random personal host. However, it is still a prebuilt binary from a non-distro, non-upstream-VCS source, and the integrity check is only an MD5 sum (weak, no SHA256). The binary is extracted and installed directly into pkgdir without any verification beyond the weak checksum. This constitutes a real supply-chain concern: if Gemfury or the Flirc account there were compromised, a malicious binary would be installed. The use of a legitimate vendor-controlled third-party host reduces but does not eliminate the risk compared to a purely personal/unofficial host. Medium severity is appropriate.

PKGBUILD

1 offending line(s) highlighted

      1# Maintainer: Jonathan Steel <jsteel at archlinux.org>
    
      2# Contributor: cornholio <vigo.the.unholy.carpathian@gmail.com>
    
      3# Contributor: Michael Mansell <michael.mansell@gmail.com>
    
      4
    
      5pkgname=flirc-bin
    
      6_pkgname=flirc
    
      7_pkgver=3.27.19-1
    
      8_debrel=amd64
    
      9_dirstr=ver_1iqEqV
    
      10pkgver=${_pkgver/-/.}
    
      11pkgrel=2
    
      12pkgdesc="CLI and GUI application to program your Flirc device"
    
      13arch=('x86_64')
    
      14url="http://flirc.tv"
    
      15license=('unknown')
    
      16depends=('libusb' 'hidapi' 'qt5-svg' 'qt5-xmlpatterns')
    
      17provides=('flirc')
    
      18conflicts=('flirc')
    
      19replaces=('flirc')
    
      20source=(https://apt.fury.io/flirc/files/${_dirstr}/flirc_${_pkgver}_${_debrel}.deb)
    
      21md5sums=('ed02ab0177de259c8c5aeed392be6361')
    
      22
    
      23package() {
    
      24  tar -xf data.tar.xz -C "$pkgdir"
    
      25}
    
      26

Scan history

Scanned at (UTC)	Severity	Rules
2026-08-03 00:08:14	MEDIUM	2
2026-08-02 00:16:08	MEDIUM	2
2026-08-01 00:11:18	MEDIUM	2
2026-07-31 00:14:10	MEDIUM	2
2026-07-30 00:17:23	MEDIUM	2
2026-07-29 00:25:53	MEDIUM	2
2026-07-28 00:07:28	MEDIUM	2
2026-07-27 00:24:32	MEDIUM	2
2026-07-26 00:07:32	MEDIUM	2
2026-07-25 00:13:44	MEDIUM	2
2026-07-24 00:02:28	MEDIUM	2
2026-07-23 00:14:47	MEDIUM	2
2026-07-22 00:29:32	MEDIUM	2
2026-07-21 00:24:15	MEDIUM	2
2026-07-20 00:19:49	MEDIUM	2
2026-07-19 00:17:08	MEDIUM	2
2026-07-18 00:14:48	MEDIUM	2
2026-07-17 00:06:16	MEDIUM	2
2026-07-16 00:05:41	MEDIUM	2
2026-07-15 00:09:25	MEDIUM	2