Free software activities in September 2018

  • 30 September, 2018

Here is my monthly update covering what I have been doing in the free software world during September 2018 (previous month):

More hacking on the Lintian static analysis tool for Debian packages:

Reproducible builds

Whilst anyone can inspect the source code of free software for malicious flaws almost all software is distributed pre-compiled to end users.

The motivation behind the Reproducible Builds effort is to ensure no flaws have been introduced during this compilation process by promising identical results are always generated from a given source, thus allowing multiple third-parties to come to a consensus on whether a build was compromised.

This month I:


  • As a member of the Debian Python Module Team I pushed a large number of changes across 100s of repositories including removing empty debian/patches/series & debian/source/options files, correcting email addresses, dropping generated .debhelper dirs, removing trailing whitespaces, respecting the nocheck build profile via DEB_BUILD_OPTIONS and correcting spelling mistakes in debian/control files.

  • Added a missing dependency on golang-golang-x-tools for digraph(1) in dh-make-golang as part of the Debian Go Packaging Team.

Debian LTS

This month I have worked 18 hours on Debian Long Term Support (LTS) and 12 hours on its sister Extended LTS project

  • "Frontdesk" duties, triaging CVEs, responding to user questions, etc.

  • Issued DLA 1492-1 fixing a string injection vulnerability in the dojo Javascript library.

  • Issued DLA 1496-1 to correct an integer overflow vulnerability in the "Little CMS 2" colour management library. A specially-crafted input file could have lead to a heap-based buffer overflow.

  • Issued DLA 1498-1 for the curl utility to fix an integer overflow vulnerability (background).

  • Issued DLA 1501-1 to fix an out-of-bounds read vulnerability in libextractor, a tool to extract meta-data from files of arbitrary type.

  • Issued DLA 1503-1 to prevent a potential denial of service and a potential arbitrary code execution vulnerability in the kamailio SIP (Session Initiation Protocol) server. A specially-crafted SIP message with an invalid Via header could cause a segmentation fault and crash the server due to missing input validation.

  • Issued ELA 34-1 for the Redis key-value database where the redis-cli tool could have allowed an attacker to achieve code execution and/or escalate to higher privileges via a specially-crafted command line.


I also uploaded the following packages as a member of the Debian Python Module Team: django-ipware (2.1.0-1), django-adminaudit (0.3.3-2), python-openid (2.2.5-7), python-social-auth (1:0.2.21+dfsg-3). python-vagrant (0.5.15-2) & python-validictory (0.8.3-3)

Finally, I sponsored the following uploads: bm-el (201808-1), elpy (1.24.0-1), mutt-alias-el (1.5-1) & android-platform-external-boringssl (8.1.0+r23-2).

Debian bugs filed

FTP Team

As a Debian FTP assistant I ACCEPTed 81 packages: adios, android-platform-system-core, aom, appmenu-registrar, astroid2, black, bm-el, colmap, cowpatty, devpi-common, equinox-bundles, fabulous, fasttracker2, folding-mode-el, fontpens, ganeti-2.15, geomet, golang-github-google-go-github, golang-github-gregjones-httpcache, hub, infnoise, intel-processor-trace, its-playback-time, jsonb-api, kitinerary, kpkpass, libclass-tiny-chained-perl, libmoox-traits-perl, librda, libtwitter-api-perl, liburl-encode-perl, libwww-oauth-perl, llvm-toolchain-7, lucy, markdown-toc-el, mmdebstrap, mozjs60, mutt-alias-el, nvidia-graphics-drivers-legacy-390xx, o-saft, pass-tomb, pass-tomb-basic, pgformatter, picocli, pikepdf, pipewire, poliastro, port-for, pyagentx, pylint2, pynwb, pytest-flask, python-argon2, python-asteval, python-caldav, python-djangosaml2, python-pcl, python-persist-queue, python-rfc3161ng, python-treetime, python-x2go, python-x3dh, python-xeddsa, rust-crossbeam-deque, rust-iovec, rust-phf-generator, rust-simd, rust-spin, rustc, sentinelsat, sesman, sphinx-autobuild, sphinxcontrib-restbuilder, tao-pegtl, trojan, ufolib2, ufonormalizer, unarr, vlc-plugin-bittorrent, xlunzip & xxhash.

I additionally filed 6 RC bugs against packages that had potentially-incomplete debian/copyright files against adios, pgformatter, picocli, python-argon2, python-pcl & python-treetime.