RHSA-2005:378 - Security Advisory

Topic

An updated cpio package that fixes multiple issues 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 race condition bug was found in cpio. It is possible for a local
malicious user to modify the permissions of a local file if they have write
access to a directory in which a cpio archive is being extracted. The
Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned
the name CAN-2005-1111 to this issue.

Additionally, this update adds cpio support for archives larger than 2GB.
However, the size of individual files within an archive is limited to 4GB.

All users of cpio are advised to upgrade to this updated package, which
contains backported fixes for 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 Server 3 x86_64
• Red Hat Enterprise Linux Server 3 ia64
• Red Hat Enterprise Linux Server 3 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 Workstation 3 x86_64
• Red Hat Enterprise Linux Workstation 3 ia64
• Red Hat Enterprise Linux Workstation 3 i386
• Red Hat Enterprise Linux Desktop 4 x86_64
• Red Hat Enterprise Linux Desktop 4 i386
• Red Hat Enterprise Linux Desktop 3 x86_64
• Red Hat Enterprise Linux Desktop 3 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 IBM z Systems 3 s390x
• Red Hat Enterprise Linux for IBM z Systems 3 s390
• Red Hat Enterprise Linux for Power, big endian 4 ppc
• Red Hat Enterprise Linux for Power, big endian 3 ppc

Fixes

• BZ - 105617 - cpio does not support large files > 2GB
• BZ - 144688 - cpio fails to unpack initrd on ppc
• BZ - 154507 - 511278 - needs fix for RHEL 4 on cpio bugzilla 105617
• BZ - 155749 - CAN-2005-1111 Race condition in cpio

CVEs

• CVE-2005-1111

References

(none)