cnijfilter2-mg7500

MEDIUM

maintainer yuntan_t 10 votes scanned 2026-09-17 00:27:14.276658

View on AUR

Why flagged

The source is a prebuilt .deb binary package from gdlp01.c-wss.com, which is Canon's official global download server (used across many Canon driver packages in the AUR and elsewhere). The package extracts and installs pre-compiled printer driver binaries directly into the system (usr/bin, usr/lib). While the host is Canon's legitimate CDN, the concern is that: (1) the binaries are closed-source and cannot be audited, (2) they are installed with chmod 0755 into system library paths, and (3) the integrity check is only MD5 (weak). However, this is a well-known pattern for proprietary Canon printer drivers in the AUR, and gdlp01.c-wss.com is Canon's official distribution host. The medium rating is appropriate because executed closed-source binaries from a vendor CDN with only MD5 verification represent a real but not clearly malicious supply-chain concern — the host is official but the binaries are opaque and the checksum algorithm is weak.

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:14 source=(http://gdlp01.c-wss.com/gds/5/0100006265/01/cnijfilter2-${_pkgver}-deb.tar.gz)

Medium AI review llm_review

An AI model (anthropic/claude-4.6-sonnet-20260217) reviewed this and agrees it is MEDIUM (confidence 72%): The source is a prebuilt .deb binary package from gdlp01.c-wss.com, which is Canon's official global download server (used across many Canon driver packages in the AUR and elsewhere). The package extracts and installs pre-compiled printer driver binaries directly into the system (usr/bin, usr/lib). While the host is Canon's legitimate CDN, the concern is that: (1) the binaries are closed-source and cannot be audited, (2) they are installed with chmod 0755 into system library paths, and (3) the integrity check is only MD5 (weak). However, this is a well-known pattern for proprietary Canon printer drivers in the AUR, and gdlp01.c-wss.com is Canon's official distribution host. The medium rating is appropriate because executed closed-source binaries from a vendor CDN with only MD5 verification represent a real but not clearly malicious supply-chain concern — the host is official but the binaries are opaque and the checksum algorithm is weak.

PKGBUILD

1 offending line(s) highlighted

      1# Maintainer: Yuto Tokunaga <toku DOT yuuto AT gmail DOT com>
    
      2# Based on the PKGBUILD for mg6400 series by Vincenzo Mantova (xworld21)
    
      3
    
      4pkgname=cnijfilter2-mg7500
    
      5pkgver=5.00
    
      6pkgrel=1
    
      7_pkgver=5.00-1
    
      8pkgdesc="Canon InkJet Printer Driver (MG7500, MG6600, MG5600, MG2900, MB5300, MB5000, MB2300, MB2000, IP110, IB4000, E460 Series)"
    
      9arch=('i686' 'x86_64')
    
      10url="http://cweb.canon.jp/drv-upd/ij-mfp/linux-pd-20142h-500.html"
    
      11license=('custom')
    
      12depends=('libcups' 'libxml2')
    
      13provides=("cnijfilter2=$pkgver")
    
      14source=(http://gdlp01.c-wss.com/gds/5/0100006265/01/cnijfilter2-${_pkgver}-deb.tar.gz)
    
      15md5sums=('433e5d53041067deb90584397daec07d')
    
      16
    
      17package() {
    
      18  local _pkgarch=$(echo -n "${CARCH}" | sed 's/x86_/amd/' | sed 's/i6/i3/')
    
      19  local _debdir="${srcdir}/cnijfilter2-${_pkgver}-deb/packages"
    
      20  
    
      21  cd $pkgdir
    
      22  ar -x "${_debdir}/cnijfilter2_${_pkgver}_${_pkgarch}.deb" "data.tar.gz"
    
      23  tar -xzf data.tar.gz && rm -f data.tar.gz
    
      24  
    
      25  mkdir -p usr/share/licenses/${pkgname}
    
      26  mv usr/share/doc/cnijfilter2/LICENSE* usr/share/licenses/${pkgname}
    
      27  
    
      28  # Weird permissions error from namcap
    
      29  chown root usr/lib/bjlib2/cnnet.ini
    
      30  chgrp root usr/lib/bjlib2/cnnet.ini
    
      31
    
      32  chmod 0755 $(find usr/bin -type f)
    
      33  chmod 0755 $(find usr/lib -type f)
    
      34  chmod 0644 $(find usr/share -type f)
    
      35}
    
      36
    
      37
    
      38

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