Bugtraq mailing list archives
Re: COSEINC Linux Advisory #1: Linux Kernel Parent Process Death Signal Vulnerability
From: Wojciech Purczynski <cliph () isec pl>
Date: Tue, 14 Aug 2007 22:18:38 +0200 (CEST)
I'm not sure this is a real security issue. If some process has the same effective UID as the given one, the former can always send any signal to the latter. Thus the behaviour you described is IMHO normal.
It becomes a security issue whenever suid process drops user's UIDs.
Current thread:
- COSEINC Linux Advisory #1: Linux Kernel Parent Process Death Signal Vulnerability Wojciech Purczynski (Aug 14)
- Re: COSEINC Linux Advisory #1: Linux Kernel Parent Process Death Signal Vulnerability Dan Yefimov (Aug 14)
- Re: COSEINC Linux Advisory #1: Linux Kernel Parent Process Death Signal Vulnerability Wojciech Purczynski (Aug 14)
- Re: COSEINC Linux Advisory #1: Linux Kernel Parent Process Death Signal Vulnerability Glynn Clements (Aug 15)
- Re: COSEINC Linux Advisory #1: Linux Kernel Parent Process Death Signal Vulnerability Dan Yefimov (Aug 15)
- Re: COSEINC Linux Advisory #1: Linux Kernel Parent Process Death Signal Vulnerability Glynn Clements (Aug 16)
- Re: COSEINC Linux Advisory #1: Linux Kernel Parent Process Death Signal Vulnerability Dan Yefimov (Aug 16)
- Re: COSEINC Linux Advisory #1: Linux Kernel Parent Process Death Signal Vulnerability Glynn Clements (Aug 16)
- Re: COSEINC Linux Advisory #1: Linux Kernel Parent Process Death Signal Vulnerability Dan Yefimov (Aug 17)
- Re: COSEINC Linux Advisory #1: Linux Kernel Parent Process Death Signal Vulnerability Glynn Clements (Aug 17)
- Re: COSEINC Linux Advisory #1: Linux Kernel Parent Process Death Signal Vulnerability Dan Yefimov (Aug 17)
- Re: COSEINC Linux Advisory #1: Linux Kernel Parent Process Death Signal Vulnerability Glynn Clements (Aug 20)
- Re: COSEINC Linux Advisory #1: Linux Kernel Parent Process Death Signal Vulnerability Dan Yefimov (Aug 14)