armeb-none-eabi-gcc75-linaro-bin

maintainer gpol · 0 votes · scanned 2026-08-03 00:08:14.047287

MEDIUM

Why flagged The PKGBUILD downloads a prebuilt GCC cross-compiler toolchain binary (~500MB tar.xz) from releases.linaro.org, which is Linaro's official release host and a well-known legitimate source for ARM toolchains. However, the checksum is set to 'SKIP', meaning there is no integrity verification of the downloaded binary. The binary is then installed system-wide under /opt and symlinked into /usr/bin, so it is directly executed. While releases.linaro.org is a plausible official host, the absence of any checksum (md5, sha256, or b2) means a MITM or a silent server-side substitution would go undetected. This is a genuine supply-chain concern: an executed prebuilt binary from an external host with no integrity check. The host itself is not suspicious (Linaro is a legitimate ARM ecosystem organization), but the missing checksum on an executed binary warrants medium severity rather than clean/low.

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:17 "https://releases.linaro.org/components/toolchain/binaries/${_ver}-${_release}/${_abi}/${_toolchain}.tar.xz"

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 GCC cross-compiler toolchain binary (~500MB tar.xz) from releases.linaro.org, which is Linaro's official release host and a well-known legitimate source for ARM toolchains. However, the checksum is set to 'SKIP', meaning there is no integrity verification of the downloaded binary. The binary is then installed system-wide under /opt and symlinked into /usr/bin, so it is directly executed. While releases.linaro.org is a plausible official host, the absence of any checksum (md5, sha256, or b2) means a MITM or a silent server-side substitution would go undetected. This is a genuine supply-chain concern: an executed prebuilt binary from an external host with no integrity check. The host itself is not suspicious (Linaro is a legitimate ARM ecosystem organization), but the missing checksum on an executed binary warrants medium severity rather than clean/low.

PKGBUILD

1 offending line(s) highlighted

      1# Maintainer: Gabriel-Andrew Pollo-Guilbert <gabrielpolloguilbert@gmail.com>
    
      2
    
      3_ver=7.5
    
      4_verfull=${_ver}.0
    
      5_abi=armeb-eabi
    
      6_release=2019.12
    
      7_toolchain="gcc-linaro-${_verfull}-${_release}-x86_64_${_abi}"
    
      8
    
      9pkgname=armeb-none-eabi-gcc75-linaro-bin
    
      10pkgver=${_ver}_${_release}
    
      11pkgrel=1
    
      12pkgdesc='The GNU Compiler Collection - cross compiler for ARM EABI (bare-metal) big-endian target.'
    
      13arch=('x86_64')
    
      14url='https://www.linaro.org/downloads/'
    
      15license=('GPL')
    
      16source=(
    
      17    "https://releases.linaro.org/components/toolchain/binaries/${_ver}-${_release}/${_abi}/${_toolchain}.tar.xz"
    
      18)
    
      19md5sums=(
    
      20    'SKIP'
    
      21)
    
      22options=(!strip)
    
      23
    
      24package() {
    
      25    mkdir -p "${pkgdir}/opt/${pkgname}/"
    
      26    cp -Rv "${srcdir}/${_toolchain}/." "${pkgdir}/opt/${pkgname}"
    
      27
    
      28    mkdir -p "${pkgdir}/usr/bin"
    
      29    for binary in "${srcdir}/${_toolchain}/bin/"*; do
    
      30        ln -sv "/opt/${pkgname}/bin/$(basename ${binary})" "${pkgdir}/usr/bin/$(basename "${binary}")"
    
      31    done
    
      32}
    
      33

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