FS#40663 - [bash] SETUID fails to drop priveleges

Attached to Project: Arch Linux
Opened by Mark E. Lee (bluerider) - Tuesday, 03 June 2014, 16:54 GMT
Last edited by Bartłomiej Piotrowski (Barthalion) - Wednesday, 11 June 2014, 09:29 GMT
Task Type Bug Report
Category Upstream Bugs
Status Closed
Assigned To Bartłomiej Piotrowski (Barthalion)
Architecture All
Severity Medium
Priority Normal
Reported Version
Due in Version Undecided
Due Date Undecided
Percent Complete 100%
Votes 0
Private No

Details

Description:
A bug in bash <= 4.3 has been reported. See : <
http://hmarco.org/bugs/bash_4.3-setuid-bug.html&gt;
This task depends upon

Closed by  Bartłomiej Piotrowski (Barthalion)
Wednesday, 11 June 2014, 09:29 GMT
Reason for closing:  Fixed
Additional comments about closing:  4.3.018-3
Comment by Bartłomiej Piotrowski (Barthalion) - Wednesday, 04 June 2014, 18:00 GMT
"Fixed" version has been pushed to [testing]. In the meantime I took the liberty to contact upstream (because Hector Marco apparently didn't).

I'll wait for the reply from Chet Ramey first, but this patch doesn't make big sense, as kernel effectively prevents described "exploit".[1] I'll probably remove it.

[1] https://git.kernel.org/cgit/linux/kernel/git/stable/linux-stable.git/tree/kernel/sys.c?id=refs/tags/v3.14.5#n415

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