libpicoipp

maintainer mti · 5 votes · scanned 2026-08-03 00:08:14.047287

MEDIUM

Why flagged The PKGBUILD downloads a prebuilt binary .deb from labs.picotech.com, which is PicoTech's official Linux software repository (they publish Debian/Ubuntu packages there for their oscilloscope drivers and libraries). The host is the vendor's own distribution channel, not a random personal host. However, the package installs a prebuilt closed-source binary library directly onto the system with no source build, and uses only an MD5 checksum (cryptographically weak) for integrity verification. If labs.picotech.com were compromised or the file replaced, the weak checksum would not provide meaningful protection. The binary is executed code (a shared library) installed system-wide. This is a legitimate vendor binary package pattern common in AUR for proprietary hardware drivers, but the combination of prebuilt binary + weak MD5-only checksum + closed-source vendor host justifies a medium rating rather than clean.

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:20 source=("http://labs.picotech.com/debian/pool/main/libp/libpicoipp/${pkgname}_${pkgver//_/-}_amd64.deb")

MEDIUM AI review llm_review

An AI model (anthropic/claude-4.6-sonnet-20260217) reviewed this and agrees it is MEDIUM (confidence 72%): The PKGBUILD downloads a prebuilt binary .deb from labs.picotech.com, which is PicoTech's official Linux software repository (they publish Debian/Ubuntu packages there for their oscilloscope drivers and libraries). The host is the vendor's own distribution channel, not a random personal host. However, the package installs a prebuilt closed-source binary library directly onto the system with no source build, and uses only an MD5 checksum (cryptographically weak) for integrity verification. If labs.picotech.com were compromised or the file replaced, the weak checksum would not provide meaningful protection. The binary is executed code (a shared library) installed system-wide. This is a legitimate vendor binary package pattern common in AUR for proprietary hardware drivers, but the combination of prebuilt binary + weak MD5-only checksum + closed-source vendor host justifies a medium rating rather than clean.

PKGBUILD

1 offending line(s) highlighted

      1# Maintainer: Mikael Tillenius <mti at tillenius dot com>
    
      2# Thanks to aAXEe <axel at brasshack dot de> for earlier work.
    
      3pkgname=libpicoipp
    
      4pkgver=1.3.0_4r78
    
      5pkgrel=2
    
      6pkgdesc="library for picotech oscilloscope software"
    
      7arch=('x86_64')
    
      8url="http://www.picotech.com/linux.html"
    
      9license=('custom')
    
      10groups=()
    
      11depends=(gcc-libs)
    
      12optdepends=()
    
      13provides=()
    
      14conflicts=()
    
      15replaces=()
    
      16backup=()
    
      17options=(!strip)
    
      18install=
    
      19changelog=
    
      20source=("http://labs.picotech.com/debian/pool/main/libp/libpicoipp/${pkgname}_${pkgver//_/-}_amd64.deb")
    
      21md5sums=('c0416c147651f269ca340791241a1a61')
    
      22
    
      23package() {
    
      24  tar -xf data.tar.xz -C "${pkgdir}"
    
      25  chmod -R go-w $pkgdir
    
      26  chown -R root:root $pkgdir
    
      27}
    
      28

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