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dbus: 1.12.14 -> 1.12.16 #63021

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merged 1 commit into from Jun 15, 2019

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commented Jun 12, 2019

Motivation for this change

https://gitlab.freedesktop.org/dbus/dbus/blob/dbus-1.12.16/NEWS

It's short and explains the CVE a bit, including below:

CVE-2019-12749: Do not attempt to carry out DBUS_COOKIE_SHA1
authentication for identities that differ from the user running the
DBusServer. Previously, a local attacker could manipulate symbolic
links in their own home directory to bypass authentication and connect
to a DBusServer with elevated privileges. The standard system and
session dbus-daemons in their default configuration were immune to this
attack because they did not allow DBUS_COOKIE_SHA1, but third-party
users of DBusServer such as Upstart could be vulnerable. Thanks to Joe
Vennix of Apple Information Security. (dbus#269, Simon McVittie)

Things done
  • Tested using sandboxing (nix.useSandbox on NixOS, or option sandbox in nix.conf on non-NixOS)
  • Built on platform(s)
    • NixOS
    • macOS
    • other Linux distributions
  • Tested via one or more NixOS test(s) if existing and applicable for the change (look inside nixos/tests)
  • Tested compilation of all pkgs that depend on this change using nix-shell -p nix-review --run "nix-review wip"
  • Tested execution of all binary files (usually in ./result/bin/)
  • Determined the impact on package closure size (by running nix path-info -S before and after)
  • Assured whether relevant documentation is up to date
  • Fits CONTRIBUTING.md.

dbus: 1.12.14 -> 1.12.16
https://gitlab.freedesktop.org/dbus/dbus/blob/dbus-1.12.16/NEWS

It's short and explains the CVE a bit, including below:

> CVE-2019-12749: Do not attempt to carry out DBUS_COOKIE_SHA1
> authentication for identities that differ from the user running the
> DBusServer. Previously, a local attacker could manipulate symbolic
> links in their own home directory to bypass authentication and connect
> to a DBusServer with elevated privileges. The standard system and
> session dbus-daemons in their default configuration were immune to this
> attack because they did not allow DBUS_COOKIE_SHA1, but third-party
> users of DBusServer such as Upstart could be vulnerable.   Thanks to Joe
> Vennix of Apple Information Security.   (dbus#269, Simon McVittie)

@FRidh FRidh merged commit 6d7cdd7 into NixOS:staging Jun 15, 2019

15 of 16 checks passed

dbus on x86_64-darwin Timed out, unknown build status
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Evaluation Performance Report Evaluator Performance Report
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dbus on aarch64-linux Success
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dbus on x86_64-linux Success
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grahamcofborg-eval ^.^!
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grahamcofborg-eval-check-maintainers matching changed paths to changed attrs...
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grahamcofborg-eval-check-meta config.nix: checkMeta = true
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grahamcofborg-eval-darwin nix-instantiate --arg nixpkgs { outPath=./.; revCount=999999; shortRev="ofborg"; } ./pkgs/top-level/release.nix -A darwin-tested
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grahamcofborg-eval-nixos nix-instantiate --arg nixpkgs { outPath=./.; revCount=999999; shortRev="ofborg"; } ./nixos/release-combined.nix -A tested
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grahamcofborg-eval-nixos-manual nix-instantiate --arg nixpkgs { outPath=./.; revCount=999999; shortRev="ofborg"; } ./nixos/release.nix -A manual
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grahamcofborg-eval-nixos-options nix-instantiate --arg nixpkgs { outPath=./.; revCount=999999; shortRev="ofborg"; } ./nixos/release.nix -A options
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grahamcofborg-eval-nixpkgs-manual nix-instantiate --arg nixpkgs { outPath=./.; revCount=999999; shortRev="ofborg"; } ./pkgs/top-level/release.nix -A manual
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grahamcofborg-eval-nixpkgs-tarball nix-instantiate --arg nixpkgs { outPath=./.; revCount=999999; shortRev="ofborg"; } ./pkgs/top-level/release.nix -A tarball
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grahamcofborg-eval-nixpkgs-unstable-jobset nix-instantiate --arg nixpkgs { outPath=./.; revCount=999999; shortRev="ofborg"; } ./pkgs/top-level/release.nix -A unstable
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grahamcofborg-eval-package-list nix-env -qa --json --file .
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grahamcofborg-eval-package-list-no-aliases nix-env -qa --json --file . --arg config { allowAliases = false; }
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