Security :: Enable An Executable Stack For A Program?
Jan 4, 2010
I am trying to learn how a buffer overflow works, but I need to have an executable stack for it to work. How do i enable this for an individual program? I am using Arch linux and X86_64 btw
i am trying to install xilinx 11.1 on fedora core 12 FEL.i have mounted the image file using mount -o loop and put it in a directory near opt.i am getting the following error: error while loading shared libraries: libSecurity.so: cannot enable executable stack as shared object requires: Permission denied.I already installed this on a standalone fedora 12 KDE and it did install. i need to mention that this time, the fedora 12 is installed on VMware, could this be creating that problem ?
- Newly installed Fedora 14- Firefox 3.6.12- All latest Fedora updates installed- Denial occured after the installation of jre1.6.0_22 from here - Linux (self-extracting file) and creating symbolic links as follows;
I have installed lilypond 2.14.1 on my Fedora 14 machine, as per the lilypond instructions for linux. When I run lilypond, it gives the following error message. /usr/local/lilypond/usr/bin/lilypond: error while loading shared libraries: libgmp.so.3: cannot enable executable stack as shared object requires:Permission denied I see several threads here already about executable stacks. I have already tried execstack to set/clear the flag for that shared object. Neither allows lilypond to run.
I tried to run Mupen64 on Fedora 14 and SELinux gave me a message (see title of thread). It sounded like a serious problem. Do I have a corrupted version, is it nothing to worry about?
I'm working with some basic stack overflows. The following code compiles & runs fine in a non-ubuntu VM that's has no security features installed. On Ubuntu 10.04 it segfaults every time. I'm compiling on Ubuntu with the gcc -fno-stack-protector flag. If someone could point me to the security feature that's causing the segfaults (and how to disable it),
I've installed a few too many interesting items with Yumex into Fedora-14..
When I click to download an interesting pix, for my editing hobby, I get this here pop-up after saving the pix:
"The program executable (null) could not be found. Make sure that ClamAV/ClamWin is installed properly and check the Fireclam settings."
I searched Yumex for Clam and Fireclam, and they aren't installed, and I don't want it installed, because Clam slows-down the operation a lot in these prehistoric old towers...
Seems I installed a peripheral for Null and Clam, but what could it be..? I've searched through Yumex.. I just can't figure it...
I installed all the "nulls", hoping that would eliminate that irritating pop-up.. It didn't... Seems my only option is to reinstall the OS to get rid of the pop-up.. Is there another option?..
I have 3 c++ files, classdef.h (header file with class definition), methods.cpp (class methods) and program.cpp - the program itself. Both .cpp files have
Code:
#include "classdef.h"
in files. How I can link the files together and compile them in one executable program? I am using Geany IDE for coding.
"failed to run * as user root, the gksu-run-helper program is not found or is not executable"
Tried googling and checking threads at LQ didnt find a solution or another instance running slackware64 current.. everything built fine, tried and everythings executable...I also have Alien's multilib installed, with only firefox and flashplugin as 32bit, everything else 64bit. I can't open any apps as root by normal user
I want to password protect evolution. How would I do that? I want to allow anyone to access all my other software, but my business email needs to be privateMy current solution seems to be to setup another account. But all the user switching and other what not seems a little much for one program.
I hope this post stands in the right section.I have a commandline i need to enter in terminal when i want to run a program. i tought lets put that piece of command in an .sh file and just click the file to run the program (then i dont need to open terminal first an give in the command) however the .sh file does not open the program. so i propably need to make a executable (application/x-executable).
I am running into a snag on .exe files in Lucid. I have Wine installed, but I can not open the file as it is blocked from executing with a window popping up telling me that this file was blocked due to security reasons. I go into the files properties and try to change the permission but that does not help. Is there a way to get around this? Possibly in the terminal as root?
I installed the latest version of Thunderbird by downloading the tarball and copying the contents to the required folder and just point launchers to the Thunderbird file. However I cannot get GNOME Do to run Thunderbird. When I type run in Gnome Do, I go through the entire list without having Thunderbird as an option. The only plugin I can find is one that allows you to copy Thunderbird contacts to the clipboard. I have set Thunderbird to be my default mail client, so when I type an email address I can choose to compose a mail in GNOME Do, but just opening up Thunderbird to check mail is not possible.
changed terminal into raw modecfmakeraw(&termios);After that terminal no more captures CTRL+CIs there a way to enable CTRL+C (to terminate the program) while still have RAW mode?
My newly installed Fedora-14 (64-bit) has SELinux disabled. I can't find any way to enable it. I tried to set it manually in /etc/selinux/config to enforcing or permissive but nothing happens after reboot. In GUI configuration tool it is set to disabled and grayed out so that there is no way to enable it there. Is there another way to enable SELinux?
How can I enable passphrase along with the password for login via ssh ? In that whenever I login from server A to server B via ssh, it should ask me for a password and then passphrase to allow me access. OR Can we have multiple passwords to login via ssh ?My basic need is to have 2 levels of password.
I recently installed Deluge 1.2.0 from the following PPA:[URL]I using this on two different Linux computers. One is running Linux Mint 8 and the other is running Ubuntu Netbook Remix 9.10. The first time on either computer when I enable WebUI in the Deluge GUI it works fine. However if I ever disable it in plugins section I am subsequently unable to re-enable it (doesn't appear in the side panel again). Rebooting or reinstalling Deluge seems to have no effect.Is this a bug or am I doing something wrong?
We have enabled DOT1x security (8021x) in our wired network for testing purpose. but to get enable that facility our account should be a domain account so that it will get certifiy from the certificate server through RADIUS server. But in Fedora We are unable to get certified from the certificate server how ever if we are loging in through Root user or any local user in fedora we are able to get IP and able to work in net as well as connected to domain. but after loging off we are unable to login to domain account. I need to login throuhg Domain Account by using DOT1X security.
1.) I am wondering how to enable the lock to an encrypted partition which has been unlocked, using luks? On boot, I am been asked automatically for the pass phrase to unlock my partitions. After doing a back up, I want lock the encrypted partition again, but I don't know the command?! I umounted the partition but after mounting it again, I was not asked for the pass phrase but had access to my data.
2.) How secure is the default fedora version of luks? Is truecrypt better?
how to enable direct login of root via ssh?I find and info that i just need to update /etc/ssh/sshd_config, but i couldn't see that file in the location.
I need to allow ICMP ping for one host only. I found out how to enable it to all hosts (ICMP Filtering, check ping) but I would like to reduce the scope to one host. I know I can add rules in the user_post script but I can't find the correct iptables command ...
Anyone can tell me how to enable and config auditd in linux kernel 2.6.9-5.EL. I have only found command auditd and auditctl in server that run kernel 2.6.9-5.EL. I ran auditd & and can saw auditd ran in my server. But I couldn't do anything with auditctl, no status, no rules, nothing :| . I tried to find audit.rules or auditd.conf but that nothing I can find.
I am using Fedora 14. By default Security Enhanced Linux is enabled in Fedora 14. Now is there any way to disable it by command line and then again enable it through command line.