Bug 6100

Summary:	RH6.1 screen uses non UNIX98 ptys with DANGEROUS permissions
Product:	[Retired] Red Hat Linux	Reporter:	Chris Evans <chris>
Component:	screen	Assignee:	Bill Nottingham <notting>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	6.1	CC:	notting, rvokal
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	i386
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	1999-10-21 19:57:17 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Chris Evans 1999-10-19 21:23:23 UTC

I have a full RH6.1 install.
As a user I run "screen".
I notice I get allocated "/dev/ttya0", and the permissions
are -rw-rw-rw-, owned by root. This is very dangerous! It
looks like screen has failed to use /dev/pts/0 (UNIX98 pty
support).
xterm and rxvt handle pty's correctly, screen should mimic
their behaviour.

PS. I like screen's usage of user-private .screen
directories, much better.

Comment 1 Bill Nottingham 1999-10-21 19:57:59 UTC

Fixed in screen-3.9.4-3, in the errata.

(As an aside, using the user private .screen directories, while
more secure, breaks on Linux<->non-Linux NFS. :( )