shadow: CVE-2018-7169

[l2dy]

https://bugs.launchpad.net/ubuntu/+source/shadow/+bug/1729357

[MingcongBai]

Upstream still working on a fix... shadow-maint/shadow#99

[MingcongBai]

Fix merged, but no adoption in any distribution yet.

[liushuyu]

Update: shadow release 4.6 contains the fix.

[l2dy]

Cross-References: GLSA 201805-09

[MingcongBai]

Fixed with 16dc224. Closing.

[l2dy]

Use AOSA-2018-0242.