5db5-channel-lv2-bin

MEDIUM

maintainer orphaned 0 votes base 5db5-channel scanned 2026-09-17 00:27:14.276658

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Why flagged

The package installs prebuilt binary shared libraries (.so files for LV2 and VST3 plugins) downloaded from an S3 bucket (5db5public.s3.amazonaws.com) that is not an official distribution channel like a distro mirror or well-known vendor CDN. While SHA256 checksums are provided (pinning the specific archive), the S3 bucket is a personal/vendor-controlled storage that could be replaced or compromised without notice. The binaries are executed at runtime by audio hosts (DAWs), making this a genuine supply-chain concern: a compromised or substituted binary would execute arbitrary code in the user's audio environment. The url field points to audioassault.mx (the vendor), but the actual download comes from a different host (the S3 bucket), which is a common but still noteworthy pattern. The 'Channel551 Linker' script is also installed as an executable (Dm755) and its content is not visible here but has a checksum. Overall this is a legitimate medium-risk pattern: prebuilt closed-source binaries from a non-canonical host with checksums but no reproducibility guarantees.

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:11 source=('https://5db5public.s3.amazonaws.com/Channel551Linux.zip'

Medium AI review llm_review

An AI model (anthropic/claude-4.6-sonnet-20260217) reviewed this and agrees it is MEDIUM (confidence 72%): The package installs prebuilt binary shared libraries (.so files for LV2 and VST3 plugins) downloaded from an S3 bucket (5db5public.s3.amazonaws.com) that is not an official distribution channel like a distro mirror or well-known vendor CDN. While SHA256 checksums are provided (pinning the specific archive), the S3 bucket is a personal/vendor-controlled storage that could be replaced or compromised without notice. The binaries are executed at runtime by audio hosts (DAWs), making this a genuine supply-chain concern: a compromised or substituted binary would execute arbitrary code in the user's audio environment. The url field points to audioassault.mx (the vendor), but the actual download comes from a different host (the S3 bucket), which is a common but still noteworthy pattern. The 'Channel551 Linker' script is also installed as an executable (Dm755) and its content is not visible here but has a checksum. Overall this is a legitimate medium-risk pattern: prebuilt closed-source binaries from a non-canonical host with checksums but no reproducibility guarantees.

PKGBUILD

1 offending line(s) highlighted

      1pkgbase=5db5-channel
    
      2pkgname=('5db5-channel-data-bin' '5db5-channel-lv2-bin' '5db5-channel-vst3-bin')
    
      3pkgver=1.0.1
    
      4pkgrel=3
    
      5arch=('x86_64')
    
      6url="https://audioassault.mx/plugin/Channel551"
    
      7license=('EULA')
    
      8depends=('alsa-lib' 'bzip2' 'brotli' 'freetype2' 'glibc' 'graphite' 'harfbuzz' 'keyutils' 'krb5' 'libcurl-gnutls' 'libffi' 'libnghttp2' 'libidn2' 'libp11-kit' 'libpng' 'libpsl' 'libssh2' 'libtasn1' 'libunistring' 'libxau' 'libxcb' 'libx11' 'nettle' 'openssl' 'pcre2' 'zlib' 'zstd')
    
      9makedepends=('xdg-user-dirs')
    
      10provides=('5db5-channel')
    
      11source=('https://5db5public.s3.amazonaws.com/Channel551Linux.zip'
    
      12        'Channel551 Linker')
    
      13sha256sums=('3363742449270118ce5807c6081ddb7e50537eb76d55720e4662b1a881f851c8'
    
      14            '35041e56af62e7d07d1a2920fa1fb0d0af14bb570968e74eab33a57005c797f0')
    
      15
    
      16package_5db5-channel-data-bin() {
    
      17    ## Install Asset Data
    
      18    pkgdesc="British Style Channel Strip (Data Assets)"
    
      19    groups=('pro-audio')
    
      20
    
      21    ## Make data assets dir
    
      22    mkdir -p "$pkgdir/usr/lib/5db5/Channel551/Presets"
    
      23
    
      24    ## Copy assets to data directory
    
      25    cp -r "$srcdir/Presets"/* "$pkgdir/usr/lib/5db5/Channel551/Presets"
    
      26
    
      27    ## Install Double Take Linker Script
    
      28    install -Dm755 "$srcdir/Channel551 Linker" "$pkgdir/usr/bin/Channel551 Linker"
    
      29}
    
      30
    
      31package_5db5-channel-lv2-bin() {
    
      32    ## Install LV2 Plugin
    
      33    pkgdesc="British Style Channel Strip (LV2)"
    
      34    groups=('pro-audio' 'lv2-plugins')
    
      35    install -Dm755 "$srcdir/Channel551.lv2/Channel551.so" "$pkgdir/usr/lib/lv2/Channel551.lv2/Channel551.so"
    
      36    install -Dm644 "$srcdir/Channel551.lv2/dsp.ttl" "$pkgdir/usr/lib/lv2/Channel551.lv2/dsp.ttl"
    
      37    install -Dm644 "$srcdir/Channel551.lv2/manifest.ttl" "$pkgdir/usr/lib/lv2/Channel551.lv2/manifest.ttl"
    
      38    install -Dm644 "$srcdir/Channel551.lv2/ui.ttl" "$pkgdir/usr/lib/lv2/Channel551.lv2/ui.ttl"
    
      39}
    
      40
    
      41package_5db5-channel-vst3-bin() {
    
      42    ## Install VST3 Plugin
    
      43    pkgdesc="British Style Channel Strip (VST3)"
    
      44    groups=('pro-audio' 'vst3-plugins')
    
      45    install -Dm755 "$srcdir/Channel551.vst3/Contents/Resources/moduleinfo.json" "$pkgdir/usr/lib/vst3/Channel551.vst3/Contents/Resources/moduleinfo.json"
    
      46    install -Dm755 "$srcdir/Channel551.vst3/Contents/x86_64-linux/Channel551.so" "$pkgdir/usr/lib/vst3/Channel551.vst3/Contents/x86_64-linux/Channel551.so"
    
      47}
    
      48

Scan history

Scanned at (UTC)	Severity	Rules
2026-09-17 00:27:14	Medium	2
2026-09-16 00:03:17	Medium	2
2026-09-15 00:25:31	Medium	2
2026-09-14 00:27:57	Medium	2
2026-09-13 00:19:54	Medium	2
2026-09-12 00:25:17	Medium	2
2026-09-11 00:19:22	Medium	2
2026-09-10 00:22:44	Medium	2
2026-09-09 00:04:09	Medium	2
2026-09-08 00:18:08	Medium	2
2026-09-07 00:30:15	Medium	2
2026-09-06 00:17:06	Medium	2
2026-09-05 00:16:27	Medium	2
2026-09-04 00:03:13	Medium	2
2026-09-03 00:15:47	Medium	2
2026-09-02 00:02:31	Medium	2
2026-09-01 00:11:19	Medium	2
2026-08-31 00:19:57	Medium	2
2026-08-30 00:04:14	Medium	2
2026-08-29 00:29:17	Medium	2