RHSA-2007:0245 - Security Advisory

Topic

An updated cpio package that fixes a security issue and various bugs is now
available.

This update has been rated as having low security impact by the Red Hat
Security Response Team.

Description

GNU cpio copies files into or out of a cpio or tar archive.

A buffer overflow was found in cpio on 64-bit platforms. By tricking a
user into adding a specially crafted large file to a cpio archive, a local
attacker may be able to exploit this flaw to execute arbitrary code with
the target user's privileges. (CVE-2005-4268)

This erratum also addresses the following bugs:

• cpio did not set exit codes appropriately.
• cpio did not create a ram disk properly.

All users of cpio are advised to upgrade to this updated package, which
contains backported fixes to correct these issues.

Solution

Before applying this update, make sure that all previously-released
errata relevant to your system have been applied. Use Red Hat
Network to download and update your packages. To launch the Red Hat
Update Agent, use the following command:

up2date

For information on how to install packages manually, refer to the
following Web page for the System Administration or Customization
guide specific to your system:

http://www.redhat.com/docs/manuals/enterprise/

Affected Products

• Red Hat Enterprise Linux Server 4 x86_64
• Red Hat Enterprise Linux Server 4 ia64
• Red Hat Enterprise Linux Server 4 i386
• Red Hat Enterprise Linux Workstation 4 x86_64
• Red Hat Enterprise Linux Workstation 4 ia64
• Red Hat Enterprise Linux Workstation 4 i386
• Red Hat Enterprise Linux Desktop 4 x86_64
• Red Hat Enterprise Linux Desktop 4 i386
• Red Hat Enterprise Linux for IBM z Systems 4 s390x
• Red Hat Enterprise Linux for IBM z Systems 4 s390
• Red Hat Enterprise Linux for Power, big endian 4 ppc

Fixes

• BZ - 172865 - CVE-2005-4268 cpio large filesize buffer overflow

CVEs

• CVE-2005-4268

References

• http://www.redhat.com/security/updates/classification/#low