On Mon, 30 Jan 2012 20:38:25 +0100, Agostino Sarubbo wrote: > The first says: > adding -D_FORTIFY_SOURCE=2 to the OSDEFS line in src/Makfile and rebuilding > sudo will prevent the bug from being exploited. > > The second says: > he above example shows the result of FORTIFY_SOURCE which makes explotitation > > painful but not impossible (see [0]). Without FORTIFY_SOURCE the exploit is > straight forward. > > something should be corrected?
joernchen is correct, it is probably still possible to exploit with -D_FORTIFY_SOURCE=2, though it is more difficult. On systems with ASLR and a non-executable stack it should be even harder. I've updated http://www.sudo.ws/sudo/alerts/sudo_debug.html to reflect this. - todd _______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.grok.org.uk/full-disclosure-charter.html Hosted and sponsored by Secunia - http://secunia.com/
