Gentoo Archives: gentoo-security

From: Gustavo Adolfo Silva Ribeiro Felisberto <humpback@××××××××××.net>
To: gentoo-security@g.o
Subject: [gentoo-security] Gcc version on affected kernels. Was: The brk() overflow
Date: Thu, 04 Dec 2003 15:40:44
Message-Id: 20031204214034.66967feb.humpback@felisberto.net
1 I have a machine running 2.4.21_pfeifer-r1_pre3 with grsec activated
2 (big kernel, no modules support) and the "exploit" build ok with both
3 nasm 0.98.38 and 0.98.34, but with both versions when i tried to run
4 it:
5 humpback@www humpback $ ./a.out
6 Segmentation fault
7
8 and in messages:
9 PAX: From 192.168.1.235: task a.out:11228, uid/euid: 5005/5005, may have
10 attempted to execute invalid code at 00001ead
11
12 This machine is a old gentoo 1.1 release (gcc version 2.95.3 20010315
13 (release)). Any ideas if it is related?
14
15 --
16 Gustavo Felisberto
17 (HumpBack)
18 ------------
19 It's most certainly GNU/Linux, not Linux. Read more at
20 http://www.gnu.org/gnu/why-gnu-linux.html .
21 -------------