[Bug 316816] [NEW] Segmentation fault at large expression lists

[Velnias]

Public bug reported:

Some information on the concerning package:

Package: squidguard
Status: install ok installed
Priority: optional
Section: web
Installed-Size: 448
Maintainer: Ubuntu MOTU Team <ubuntu-motu at lists.ubuntu.com>
Architecture: amd64
Version: 1.2.0-8.2ubuntu2
Depends: debconf (>= 0.5) | debconf-2.0, libc6 (>= 2.7-1), libdb4.6, liburi-perl, libwww-perl, perl, squid3 | squid
Suggests: chastity-list
Conffiles:
 /etc/squid/squidGuard.conf 1bbe05151e051355c9ef676d7f27c19d

Description:    Ubuntu 8.04.2
Release:        8.04
Architecture: 64bit (AMD)

I tried to add the most recent easylist-adblock-Filterset which contained some thousand expressions.
Matching regexes were correctly rewritten, but a non matching URL causes squidGuard to crash with an segmentation fault.

Attached is the filterset I used and under the sed-script I used to
transform:

/@@.*/d;
/^!.*/d;
/^\[.*\]$/d;
s#http://##g;
s,[.?=&/|],\\&,g;
s#*#.*#g;
s,\$.*$,,g;

** Affects: squidguard (Ubuntu)
     Importance: Undecided
         Status: New

-- 
Segmentation fault at large expression lists
https://bugs.launchpad.net/bugs/316816
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