vapoursynth-plugin-scenechange

MEDIUM

maintainer sl1pkn07 4 votes scanned 2026-09-17 00:27:14.276658

View on AUR

Why flagged

The source archive is a prebuilt 7z file hosted on the maintainer's personal domain (sl1pkn07.wtf) rather than an official upstream release host (e.g., GitHub, the original author's site). While the build process does compile C source extracted from the archive (not execute a prebuilt binary directly), the C source itself comes entirely from this personal host. If the host is compromised or the maintainer substitutes the archive, arbitrary C code would be compiled and installed as a VapourSynth plugin. The sha256 checksum provides integrity against transit tampering but not against the host owner substituting the file. This is a genuine supply-chain concern: executed/compiled code from a non-official personal host. The concern is real but not clearly malicious, consistent with MEDIUM severity.

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:12 source=("https://sl1pkn07.wtf/${_plug}/${_plug}-${pkgver/_/-}.7z")

Medium AI review llm_review

An AI model (anthropic/claude-4.6-sonnet-20260217) reviewed this and agrees it is MEDIUM (confidence 72%): The source archive is a prebuilt 7z file hosted on the maintainer's personal domain (sl1pkn07.wtf) rather than an official upstream release host (e.g., GitHub, the original author's site). While the build process does compile C source extracted from the archive (not execute a prebuilt binary directly), the C source itself comes entirely from this personal host. If the host is compromised or the maintainer substitutes the archive, arbitrary C code would be compiled and installed as a VapourSynth plugin. The sha256 checksum provides integrity against transit tampering but not against the host owner substituting the file. This is a genuine supply-chain concern: executed/compiled code from a non-official personal host. The concern is real but not clearly malicious, consistent with MEDIUM severity.

PKGBUILD

1 offending line(s) highlighted

      1# Maintainer: Gustavo Alvarez <sl1pkn07@gmail.com>
    
      2
    
      3_plug=scenechange
    
      4pkgname=vapoursynth-plugin-${_plug}
    
      5pkgver=0.2.0_2
    
      6pkgrel=9
    
      7pkgdesc="Plugin for Vapoursynth: ${_plug}"
    
      8arch=('x86_64')
    
      9url='http://forum.doom9.org/showthread.php?t=166769'
    
      10license=('LGPL2.1')
    
      11depends=('vapoursynth-plugin-temporalsoften2-git')
    
      12source=("https://sl1pkn07.wtf/${_plug}/${_plug}-${pkgver/_/-}.7z")
    
      13sha256sums=('138ef3bd565e54dab556080e0ae3a426ef00f62f340e8eb6c2cb134dbf14332c')
    
      14options=('debug')
    
      15
    
      16_site_packages="$(python -c 'import sysconfig; print(sysconfig.get_paths()["purelib"])')"
    
      17
    
      18prepare() {
    
      19  rm -fr src/Vapoursynth.h
    
      20
    
      21  echo "all:
    
      22	  gcc -c -std=gnu99 -ffast-math -fexcess-precision=fast -fPIC ${CFLAGS} ${CPPFLAGS} -I. $(pkg-config --cflags vapoursynth) -o scenechange.o src/scenechange.c
    
      23	  gcc -shared -fPIC ${LDFLAGS} -o lib${_plug}.so scenechange.o" > Makefile
    
      24}
    
      25
    
      26build() {
    
      27  make
    
      28}
    
      29
    
      30package(){
    
      31  install -Dm755 "lib${_plug}.so" "${pkgdir}/usr/lib/vapoursynth/lib${_plug}.so"
    
      32
    
      33  install -Dm644 readme.txt "${pkgdir}/usr/share/doc/vapoursynth/plugins/${_plug}/README.txt"
    
      34
    
      35}
    
      36

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