microchip-mplabxc16-bin

maintainer methril · 15 votes · scanned 2026-08-03 00:08:14.047287

LOW

Why flagged The package downloads a prebuilt installer from Microchip's official domain (microchip.com) for a proprietary toolchain, which is normal for such software; the host is not whitelisted but is legitimate and plausibly the project's official source, and no unreviewed remote code execution occurs beyond standard installation of vendor-provided binaries.

Triggered rules

LOW AI review downgraded a static finding llm_review

The static rules flagged this MEDIUM, but an AI model (qwen/qwen3-235b-a22b-07-25) reviewed the full PKGBUILD and judged it LOW (confidence 95%): The package downloads a prebuilt installer from Microchip's official domain (microchip.com) for a proprietary toolchain, which is normal for such software; the host is not whitelisted but is legitimate and plausibly the project's official source, and no unreviewed remote code execution occurs beyond standard installation of vendor-provided binaries.

2 higher static findings superseded - not the current verdict (shown for transparency)

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:18 source=("https://ww1.microchip.com/downloads/aemDocuments/documents/DEV/ProductDocuments/SoftwareTools/xc${_number_of_bits}-v$pkgver-full-install-linux64-installer.run")

MEDIUM Privileged / out-of-pacman install (sudoers, setuid, or self-update) privileged_install

The package grants elevated privileges or installs an update path outside pacman: a /etc/sudoers.d rule (often passwordless), a setuid/setgid binary, or a self-update script/service that can fetch and run future code with no checksum verification. The initial install may be verified, but the ongoing privilege + update surface is a real supply-chain / privilege-escalation risk.

PKGBUILD:36 chmod u+s "${pkgdir}${instdir}/bin/xclm"

PKGBUILD

2 offending line(s) highlighted

      1# Maintainer: Rafael Campos Las Heras <methril at gmail dot com>
    
      2# Contributer: Grey Christoforo <first name at last name dot net>
    
      3# Contributer: mickael9 <mickael9 at gmail dot com>
    
      4
    
      5_number_of_bits=16
    
      6pkgver=2.10
    
      7pkgname=microchip-mplabxc${_number_of_bits}-bin
    
      8pkgrel=2
    
      9pkgdesc="Microchip's MPLAB XC${_number_of_bits} C compiler toolchain for their dsPIC and PIC24 microcontroller families"
    
      10arch=(i686 x86_64)
    
      11url=http://www.microchip.com/xc${_number_of_bits}
    
      12license=(custom)
    
      13depends_i688=(gcc-libs)
    
      14depends_x86_64=(lib32-gcc-libs)
    
      15makedepends=(bitrock-unpacker)
    
      16
    
      17options=(!strip docs libtool emptydirs !zipman staticlibs)
    
      18source=("https://ww1.microchip.com/downloads/aemDocuments/documents/DEV/ProductDocuments/SoftwareTools/xc${_number_of_bits}-v$pkgver-full-install-linux64-installer.run")
    
      19sha256sums=('d64d5e7391ec862d4dd169361b6680b725f8960435121709b45eb1a4afe15dc8')
    
      20install=$pkgname.install
    
      21
    
      22instdir="/opt/microchip/xc${_number_of_bits}/v${pkgver}"
    
      23
    
      24PKGEXT='.pkg.tar'
    
      25
    
      26build() {
    
      27  msg2 "Unpacking files from installer"
    
      28  bitrock-unpacker ./xc${_number_of_bits}-v$pkgver-full-install-linux64-installer.run ./unpacked.vfs
    
      29}
    
      30
    
      31package() {
    
      32  mkdir -p "${pkgdir}${instdir}"
    
      33  mv unpacked.vfs/compiler/programfiles*/* "${pkgdir}${instdir}"
    
      34  mv unpacked.vfs/licensecomponent/LinuxLM/xclmcheck.sh "${pkgdir}${instdir}/bin"
    
      35  mv unpacked.vfs/licensecomponent/xclmBinlinux32/bin/{roam.lic,xclm} "${pkgdir}${instdir}/bin"
    
      36  chmod u+s "${pkgdir}${instdir}/bin/xclm"
    
      37  sed -i "s/<xclm>/<xclm>\n\t<xclm:LicenseDirectory xclm:path=\"\/opt\/microchip\/xclm\/license\/\" \/>/" unpacked.vfs/licensecomponent/xclmBinlinux32/etc/xclm.conf
    
      38  mv unpacked.vfs/licensecomponent/xclmBinlinux32/etc/xclm.conf "${pkgdir}${instdir}/etc"
    
      39  mv unpacked.vfs/licensecomponent/xclmallDocs/doc/* "${pkgdir}${instdir}/docs"
    
      40
    
      41  mv "${pkgdir}${instdir}"/*License.txt "${pkgdir}${instdir}/docs" 2>/dev/null || true
    
      42
    
      43  mkdir -p "$pkgdir/etc/profile.d"
    
      44  echo "export PATH=\"\$PATH\":'${instdir}/bin'" > "${pkgdir}/etc/profile.d/${pkgname}.sh"
    
      45  echo "export XC${_number_of_bits}_TOOLCHAIN_ROOT='${instdir}'" >> "$pkgdir/etc/profile.d/${pkgname}.sh"
    
      46
    
      47  mkdir -p "$pkgdir/usr/share/licenses/$pkgname"
    
      48  ln -s "${instdir}/docs/$(basename "${pkgdir}${instdir}/docs"/*[Ll]icense.txt)" "${pkgdir}/usr/share/licenses/$pkgname/LICENSE"
    
      49}
    
      50

Scan history

Scanned at (UTC)	Severity	Rules
2026-08-03 00:08:14	LOW	3
2026-08-02 00:16:08	LOW	3
2026-08-01 00:11:18	LOW	3
2026-07-31 00:14:10	LOW	3
2026-07-30 00:17:23	LOW	3
2026-07-29 00:25:53	LOW	3
2026-07-28 00:07:28	LOW	3
2026-07-27 00:24:32	LOW	3
2026-07-26 00:07:32	LOW	3
2026-07-25 00:13:44	LOW	3
2026-07-24 00:02:28	LOW	3
2026-07-23 00:14:47	LOW	3
2026-07-22 00:29:32	LOW	3
2026-07-21 00:24:15	LOW	3
2026-07-20 00:19:49	LOW	3
2026-07-19 00:17:08	LOW	3
2026-07-18 00:14:48	LOW	3
2026-07-17 00:06:16	LOW	3
2026-07-16 00:05:41	LOW	3
2026-07-15 00:09:25	LOW	3