brother-dcp540cn-cups-bin

LOW

maintainer Mutzman 0 votes scanned 2026-11-01 00:21:48.120785

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1 higher static finding superseded - not the current verdict (shown for transparency)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
2026-11-01 00:21:48	Low	2
2026-10-31 00:07:41	Low	2
2026-10-30 00:29:30	Low	2
2026-10-29 00:13:55	Low	2
2026-10-28 00:06:54	Low	2
2026-10-27 00:23:28	Low	2
2026-10-26 00:12:40	Low	2
2026-10-25 00:20:48	Low	2
2026-10-24 00:14:55	Low	2
2026-10-23 00:02:19	Low	2
2026-10-22 00:13:10	Low	2
2026-10-21 00:12:50	Low	2
2026-10-20 00:10:31	Low	2
2026-10-19 00:03:55	Low	2
2026-10-18 00:06:55	Low	2
2026-10-17 00:21:55	Low	2
2026-10-16 00:12:47	Low	2
2026-10-15 00:28:05	Low	2
2026-10-14 00:06:47	Low	2
2026-10-13 00:23:45	Low	2