From owner-freebsd-security Wed Jul 11 3:21:17 2001 Delivered-To: freebsd-security@freebsd.org Received: from db.nexgen.com (db.nexgen.com [66.92.98.149]) by hub.freebsd.org (Postfix) with SMTP id 5965537B401 for ; Wed, 11 Jul 2001 03:21:14 -0700 (PDT) (envelope-from ml@db.nexgen.com) Received: (qmail 34992 invoked from network); 9 Jul 2001 04:34:30 -0000 Received: from localhost.nexgen.com (HELO alexus) (root@127.0.0.1) by localhost.nexgen.com with SMTP; 9 Jul 2001 04:34:30 -0000 Message-ID: <001901c10830$b51e7890$0100a8c0@alexus> From: "alexus" To: "solwar" Cc: References: <20010709030412.I3212-100000@SOLos.tw> Subject: Re: non-exec stack Date: Mon, 9 Jul 2001 00:36:22 -0400 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2479.0006 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2479.0006 Sender: owner-freebsd-security@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org did you find anything like that for fbsd? i used to use that patch for my linux box;) ----- Original Message ----- From: "solwar" To: "alexus" Cc: Sent: Sunday, July 08, 2001 9:07 PM Subject: Re: non-exec stack > Most buffer overflow exploits are based on overwriting a function's return > address on the stack to point to some arbitrary code, which is also put > onto the stack. If the stack area is non-executable, buffer overflow > vulnerabilities become harder to exploit. > > > On Sun, 8 Jul 2001, alexus wrote: > > > what do you mean by non-exec? > > > > ----- Original Message ----- > > From: "solwar" > > To: > > Sent: Sunday, July 08, 2001 5:03 PM > > Subject: non-exec stack > > > > > > > Hello, > > > Is there is any non-exec stack kernel patch available for FreeBSD? > > > (like linux's openwall patch from solar designer, www.openwall.com) > > > tnx > > > > > > > > > > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > > > with "unsubscribe freebsd-security" in the body of the message > > > > > > > > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-security" in the body of the message > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-security" in the body of the message