Full Disclosure mailing list archives
Re: Security Updates Without Rebooting
From: Joachim Schipper <j.schipper () math uu nl>
Date: Wed, 9 Nov 2005 11:01:43 +0100
On Mon, Nov 07, 2005 at 10:42:11PM +0000, Carlos Silva aka|Danger_Man| wrote:
Hello all, Can someone explain how to apply security patches on the system without rebooting the machine? I guess that I cant patch the kernel without compiling and rebooting the machine, so the only way is with iptables and keeping the daemons "fresh"? Regards, Carlos Silva,
If we are talking some *nix, just stop the vulnerable daemon, update, and start it again. Not very difficult... Patching the kernel while running is be possible, but hardly practical - unless you are very, very good. I've never seen it done, but it does happen in rootkits and is said to be possible in many cases. (What seems, to me, to be more practical is just to build a modular Linux kernel and update only the vulnerable module with the most minimal patch you can find - however, this only works with very modular kernels, OpenBSD wouldn't be helped much by this. Then again, patching the OpenBSD kernel isn't required too often...) Joachim _______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.grok.org.uk/full-disclosure-charter.html Hosted and sponsored by Secunia - http://secunia.com/
Current thread:
- Security Updates Without Rebooting Carlos Silva aka|Danger_Man| (Nov 07)
- Re: Security Updates Without Rebooting Stuart Low (Nov 07)
- Re: Security Updates Without Rebooting Valdis . Kletnieks (Nov 07)
- Re: Security Updates Without Rebooting Tomasz Nidecki (Nov 08)
- Re: Security Updates Without Rebooting Valdis . Kletnieks (Nov 07)
- Re: Security Updates Without Rebooting Alexander Sotirov (Nov 07)
- Re: Security Updates Without Rebooting Valdis . Kletnieks (Nov 07)
- Re: Security Updates Without Rebooting Marco Ermini (Nov 14)
- Re: Security Updates Without Rebooting Valdis . Kletnieks (Nov 07)
- Re: Security Updates Without Rebooting Joxean Koret (Nov 08)
- Re: Security Updates Without Rebooting Valdis . Kletnieks (Nov 08)
- Re: Security Updates Without Rebooting Joachim Schipper (Nov 09)
- Re: Security Updates Without Rebooting Stuart Low (Nov 07)