perl regex vulnerability - debian - pcre only?

Simon Wilcox essuu at
Tue Nov 6 22:18:39 GMT 2007

Nicholas Clark wrote:
> We've not been kept in the loop at all. Has Debian?

Looks like it. Question is, is this off their own bat or is the patch 
applied to perl itself ?

Debian Security Advisory DSA-1400-1                  security at                           Florian Weimer
November 6th, 2007          

Package        : perl
Vulnerability  : heap overflow
Problem type   : local (remote)
Debian-specific: no
CVE Id(s)      : CVE-2007-5116

Will Drewry and Tavis Ormandy of the Google Security Team have
discovered a UTF-8 related heap overflow in Perl's regular expression
compiler, probably allowing attackers to execute arbitrary code by
compiling specially crafted regular expressions.

For the stable distribution (etch), this problem has been fixed in
version 5.8.8-7etch1.

For the old stable distribution (sarge), this problem has been fixed in
version 5.8.4-8sarge6.

For the unstable distribution (sid), this problem will be fixed soon.

Some architectures are missing from this DSA; these updates will be
released once they are available.

We recommend that you upgrade your perl package.

Upgrade instructions
- --------------------

wget url
         will fetch the file for you
dpkg -i file.deb
         will install the referenced file.

If you are using the apt-get package manager, use the line for
sources.list as given below:

apt-get update
         will update the internal database
apt-get upgrade
         will install corrected packages

You may use an automated update by adding the resources from the
footer to the proper configuration.

Debian GNU/Linux 3.1 alias sarge
- --------------------------------

[Architecture URLs snipped]

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