USN-794-1: Perl vulnerability

2 July 2009

libcompress-raw-zlib-perl, perl vulnerability

A security issue affects these releases of Ubuntu and its derivatives:

  • Ubuntu 9.04
  • Ubuntu 8.10
  • Ubuntu 8.04 LTS

Software Description

  • libcompress-raw-zlib-perl
  • perl


It was discovered that the Compress::Raw::Zlib Perl module incorrectly handled certain zlib compressed streams. If a user or automated system were tricked into processing a specially crafted compressed stream or file, a remote attacker could crash the application, leading to a denial of service.

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 9.04
libcompress-raw-zlib-perl - 2.015-1ubuntu0.1
perl - 5.10.0-19ubuntu1.1
Ubuntu 8.10
libcompress-raw-zlib-perl - 2.011-2ubuntu0.1
perl - 5.10.0-11.1ubuntu2.3
Ubuntu 8.04 LTS
libcompress-raw-zlib-perl - 2.008-1ubuntu0.1

To update your system, please follow these instructions:

In general, a standard system upgrade is sufficient to effect the necessary changes.