app-cdr/bchunk: patch CVE-2017-15953, CVE-2017-15954, CVE-2017-15955

[lukateras]

See: https://bugs.gentoo.org/635898, NixOS/nixpkgs#31002

CVE-2017-15953: https://nvd.nist.gov/vuln/detail/CVE-2017-15953, extramaster/bchunk#2
CVE-2017-15954: https://nvd.nist.gov/vuln/detail/CVE-2017-15954, extramaster/bchunk#3
CVE-2017-15955: https://nvd.nist.gov/vuln/detail/CVE-2017-15955, extramaster/bchunk#4

[gentoo-repo-qa-bot]

Pull Request assignment

Areas affected: ebuilds
Packages affected: app-cdr/bchunk

app-cdr/bchunk: @yegortimoshenko

[grobian]

I pushed this as 8c1539b, thanks!

[grobian]

FYI: I've added the patches to -r4, for which I dropped keywords back to ~arch. Couple of reasons: 1) adding patches to existing ebuild won't get people to recompile it (in security case we /want/ people to recompile) 2) can't bump straight to stable, security will likely deal with the stabilisation process for -r4 now. Hope this helps!

[lukateras]

Thanks for handling this :-)