RHSA-2005:073 - Security Advisory

Topic

An updated cpio package that fixes a umask bug is now available for Red Hat
Enterprise Linux 4.

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.

It was discovered that cpio uses a 0 umask when creating files using the -O
(archive) option. This creates output files with mode 0666 (all can read
and write) regardless of the user's umask setting. The Common
Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name
CAN-1999-1572 to this issue.

Users of cpio should upgrade to this updated package, which resolves
this issue.

Red Hat would like to thank Mike O'Connor for bringing this issue to our
attention.

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 - 145725 - CAN-1999-1572 cpio insecure file creation

CVEs

• CVE-1999-1572

References

(none)