natpos-sdr

MEDIUM

maintainer parkerlreed 3 votes scanned 2026-09-17 00:27:14.276658

View on AUR

Why flagged

The PKGBUILD downloads a prebuilt/source tarball from a personal/project website (ecstaticlyrics.com) that is not a recognized upstream forge or mirror. The build step runs './compile', a custom shell script bundled inside the tarball — this script is not reviewed and could execute arbitrary code. The resulting binary is installed to /usr/bin. The combination of: (1) source from a personal host with no verifiable upstream presence on a major forge, (2) execution of an opaque './compile' script from within the tarball, and (3) installation of the resulting binary, constitutes a real supply-chain concern. The MD5 checksum provides weak integrity assurance (MD5 is broken for collision resistance) and only protects against accidental corruption, not a targeted substitution. This is a genuine medium-severity concern: not clearly malicious, but an executed binary/compiled source from an unofficial personal host with a non-standard build process.

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:12 source=("http://www.ecstaticlyrics.com/radio/sdr/natpos/download/natpos-$pkgver.tgz")

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/source tarball from a personal/project website (ecstaticlyrics.com) that is not a recognized upstream forge or mirror. The build step runs './compile', a custom shell script bundled inside the tarball — this script is not reviewed and could execute arbitrary code. The resulting binary is installed to /usr/bin. The combination of: (1) source from a personal host with no verifiable upstream presence on a major forge, (2) execution of an opaque './compile' script from within the tarball, and (3) installation of the resulting binary, constitutes a real supply-chain concern. The MD5 checksum provides weak integrity assurance (MD5 is broken for collision resistance) and only protects against accidental corruption, not a targeted substitution. This is a genuine medium-severity concern: not clearly malicious, but an executed binary/compiled source from an unofficial personal host with a non-standard build process.

PKGBUILD

1 offending line(s) highlighted

      1# Maintainer: Roberto Nobrega <rwnobrega@gmail.com>
    
      2pkgname=natpos-sdr
    
      3pkgver=59a
    
      4pkgrel=2
    
      5pkgdesc="A Linux based SDR program similar in operation and features to other programs like Gqrx, HDSDR, and SDR#"
    
      6arch=('i686' 'x86_64')
    
      7url="http://www.ecstaticlyrics.com/radio/sdr/natpos/"
    
      8license=('custom:Antiviral')
    
      9depends=('rtl-sdr' 'alsa-lib' 'glfw')
    
      10makedepends=()
    
      11optdepends=()
    
      12source=("http://www.ecstaticlyrics.com/radio/sdr/natpos/download/natpos-$pkgver.tgz")
    
      13md5sums=('84acbf3239f9461543ba9a4e4d6db23e')
    
      14
    
      15build() {
    
      16  cd "natpos-$pkgver"
    
      17
    
      18  ./compile
    
      19}
    
      20
    
      21package() {
    
      22  cd "natpos-$pkgver"
    
      23
    
      24  install -D -m755 natpos "${pkgdir}/usr/bin/natpos"
    
      25  install -D -m644 LICENSE.txt "${pkgdir}/usr/share/licenses/${pkgname}/LICENSE"
    
      26}
    
      27

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