brother-dcp540cn-cups-bin

LOW

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

View on AUR

Why flagged

The source is a prebuilt i386 Debian package downloaded directly from download.brother.com, which is Brother's official download server (same domain used by all Brother Linux driver packages). A valid md5sum is provided. The binary is a CUPS wrapper driver blob, which is typical for proprietary printer drivers in the AUR (brother-*, brlaser, etc.). While it is a binary blob with no source review possible, this is standard practice for vendor printer drivers and the host is the official vendor CDN, not a personal or unofficial mirror. The PKGBUILD itself is minimal and straightforward. The main concern is the use of MD5 (weak hash) rather than SHA256, and the binary-only nature of the driver, but neither constitutes a supply-chain attack. Rating: low (sloppy/non-standard checksum algorithm, binary blob, but from official vendor host).

Triggered rules

Low AI review downgraded a static finding llm_review

The static rules flagged this MEDIUM, but an AI model (anthropic/claude-4.6-sonnet-20260217) reviewed the full PKGBUILD and judged it LOW (confidence 85%): The source is a prebuilt i386 Debian package downloaded directly from download.brother.com, which is Brother's official download server (same domain used by all Brother Linux driver packages). A valid md5sum is provided. The binary is a CUPS wrapper driver blob, which is typical for proprietary printer drivers in the AUR (brother-*, brlaser, etc.). While it is a binary blob with no source review possible, this is standard practice for vendor printer drivers and the host is the official vendor CDN, not a personal or unofficial mirror. The PKGBUILD itself is minimal and straightforward. The main concern is the use of MD5 (weak hash) rather than SHA256, and the binary-only nature of the driver, but neither constitutes a supply-chain attack. Rating: low (sloppy/non-standard checksum algorithm, binary blob, but from official vendor host).

1 higher static finding superseded - not the current verdict (shown for transparency)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:11 source=("https://download.brother.com/welcome/dlf005469/dcp540cncupswrapper-1.0.1-1.i386.deb")

PKGBUILD

1 offending line(s) highlighted

      1# Maintainer: Richard Mutze <richard.mutze@gmail.com>
    
      2
    
      3pkgname=brother-dcp540cn-cups-bin
    
      4pkgver=1.0.1
    
      5pkgrel=1
    
      6pkgdesc="CUPS wrapper for Brother DCP-540CN printer"
    
      7arch=("i686" "x86_64")
    
      8url="https://support.brother.com/g/b/producttop.aspx?c=de&lang=de&prod=dcp540cn_all"
    
      9license=("EULA")
    
      10groups=("base-devel")
    
      11source=("https://download.brother.com/welcome/dlf005469/dcp540cncupswrapper-1.0.1-1.i386.deb")
    
      12md5sums=("918f620ee9adda398c0892efb52ed0e6")
    
      13
    
      14package() {
    
      15	tar -xf data.tar.gz -C "${pkgdir}"
    
      16}
    
      17

Scan history

Scanned at (UTC)	Severity	Rules
2026-09-17 00:27:14	Low	2
2026-09-16 00:03:17	Low	2
2026-09-15 00:25:31	Low	2
2026-09-14 00:27:57	Low	2
2026-09-13 00:19:54	Low	2
2026-09-12 00:25:17	Low	2
2026-09-11 00:19:22	Low	2
2026-09-10 00:22:44	Low	2
2026-09-09 00:04:09	Low	2
2026-09-08 00:18:08	Low	2
2026-09-07 00:30:15	Low	2
2026-09-06 00:17:06	Low	2
2026-09-05 00:16:27	Low	2
2026-09-04 00:03:13	Low	2
2026-09-03 00:15:47	Low	2
2026-09-02 00:02:31	Low	2
2026-09-01 00:11:19	Low	2
2026-08-31 00:19:57	Low	2
2026-08-30 00:04:14	Low	2
2026-08-29 00:29:17	Low	2