vapoursynth-plugin-scenechange

maintainer sl1pkn07 · 4 votes · scanned 2026-08-03 00:08:14.047287

MEDIUM

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
2026-08-03 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