xlibre-input-synaptics-bin

MEDIUM

maintainer xlibre 0 votes scanned 2026-09-17 00:27:14.276658

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Why flagged

This PKGBUILD downloads a prebuilt binary package (.pkg.tar.zst) from x11libre.net, which is a third-party host for the XLibre project (a fork of X.Org). The binary is then extracted and installed directly into the package directory. While a sha256sum is provided (offering some integrity protection against transit tampering), the fundamental concern is that this is a precompiled binary from a non-official, non-Arch-trusted host. XLibre is a real project (a fork of X.Org/Xserver), but x11libre.net is not a recognized official distribution channel like the Arch repos, official upstream GitHub releases, or a well-known CDN. If x11libre.net is compromised or the maintainer is malicious, the binary could contain arbitrary code that gets installed as an X input driver (running with significant system privileges). The noextract + manual tar approach is also slightly unusual but not inherently malicious. This is a genuine supply-chain concern: executed binary from an unofficial personal/project host, not clearly malicious but not verifiably safe either.

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:13 source=(https://x11libre.net/repo/arch_based/x86_64/xlibre-input-synaptics-1.10.0.2-1.2-x86_64.pkg.tar.zst)

Medium AI review llm_review

An AI model (anthropic/claude-4.6-sonnet-20260217) reviewed this and agrees it is MEDIUM (confidence 82%): This PKGBUILD downloads a prebuilt binary package (.pkg.tar.zst) from x11libre.net, which is a third-party host for the XLibre project (a fork of X.Org). The binary is then extracted and installed directly into the package directory. While a sha256sum is provided (offering some integrity protection against transit tampering), the fundamental concern is that this is a precompiled binary from a non-official, non-Arch-trusted host. XLibre is a real project (a fork of X.Org/Xserver), but x11libre.net is not a recognized official distribution channel like the Arch repos, official upstream GitHub releases, or a well-known CDN. If x11libre.net is compromised or the maintainer is malicious, the binary could contain arbitrary code that gets installed as an X input driver (running with significant system privileges). The noextract + manual tar approach is also slightly unusual but not inherently malicious. This is a genuine supply-chain concern: executed binary from an unofficial personal/project host, not clearly malicious but not verifiably safe either.

PKGBUILD

1 offending line(s) highlighted

      1# Maintainer: artist for Xlibre
    
      2
    
      3pkgname=xlibre-input-synaptics-bin
    
      4_pkgname=xlibre-xf86-input-synaptics
    
      5pkgver=1.10.0.2
    
      6pkgrel=1.2
    
      7pkgdesc="XLibre Official Easy Install Drop in Replacement fork of X.Org Synaptics driver for notebook touchpads (binary release)"
    
      8arch=(x86_64)
    
      9url=https://x11libre.net/repo/arch_based/x86_64
    
      10license=('MIT')
    
      11groups=('xlibre-drivers')
    
      12options=(!strip)
    
      13source=(https://x11libre.net/repo/arch_based/x86_64/xlibre-input-synaptics-1.10.0.2-1.2-x86_64.pkg.tar.zst)
    
      14noextract=("${_pkgname}-${pkgver}-${pkgrel}-x86_64.pkg.tar.zst")
    
      15depends=('libxtst' 'libevdev' 'libx11' 'libxi' 'glibc')
    
      16provides=('xf86-input-synaptics' 'xlibre-input-synaptics' 'synaptics')
    
      17conflicts=('xf86-input-synaptics' 'xlibre-input-synaptics' 'X-ABI-XINPUT_VERSION<26' 'X-ABI-XINPUT_VERSION>=27' 'synaptics')
    
      18replaces=('synaptics')
    
      19
    
      20sha256sums=('0b5cb666c0fc773478fa77496e70d1fc19d1c5ec2ee806d28de0a05acd308aec')
    
      21
    
      22package() {
    
      23  tar -xf "${_pkgname}-${pkgver}-${pkgrel}-x86_64.pkg.tar.zst" -C "${pkgdir}" usr
    
      24}
    
      25
    
      26

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