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Red Hat Security Advisory

Synopsis: Moderate: cpio security and bug fix update
Advisory ID: RHSA-2015:2108-03
Product: Red Hat Enterprise Linux
Advisory URL: https://rhn.redhat.com/errata/RHSA-2015-2108.html
Issue date: 2015-11-19
CVE Names: CVE-2014-9112
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1. Summary:

Updated cpio packages that fix one security issue and two bugs are now
available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having Moderate security
impact. A Common Vulnerability Scoring System (CVSS) base score, which
gives a detailed severity rating, is available from the CVE link in the
References section.

2. Relevant releases/architectures:

Red Hat Enterprise Linux Client (v. 7) – x86_64
Red Hat Enterprise Linux ComputeNode (v. 7) – x86_64
Red Hat Enterprise Linux Server (v. 7) – aarch64, ppc64, ppc64le, s390x, x86_64
Red Hat Enterprise Linux Workstation (v. 7) – x86_64

3. Description:

The cpio packages provide the GNU cpio utility for creating and extracting
archives, or copying files from one place to another.

A heap-based buffer overflow flaw was found in cpio’s list_file() function.
An attacker could provide a specially crafted archive that, when processed
by cpio, would crash cpio, or potentially lead to arbitrary code execution.
(CVE-2014-9112)

This update fixes the following bugs:

* Previously, during archive creation, cpio internals did not detect a
read() system call failure. Based on the premise that the call succeeded,
cpio terminated unexpectedly with a segmentation fault without processing
further files. The underlying source code has been patched, and an archive
is now created successfully. (BZ#1138148)

* Previously, running the cpio command without parameters on Red Hat
Enterprise Linux 7 with Russian as the default language resulted in an
error message that was not accurate in Russian due to an error in spelling.
This has been corrected and the Russian error message is spelled correctly.
(BZ#1075513)

All cpio users are advised to upgrade to these updated packages, which
contain backported patches to correct these issues.

4. Solution:

Before applying this update, make sure all previously released errata
relevant to your system have been applied.

For details on how to apply this update, refer to:

https://access.redhat.com/articles/11258

5. Bugs fixed (https://bugzilla.redhat.com/):

1075513 – [PATCH] Typo in ru.po
1167571 – CVE-2014-9112 cpio: heap-based buffer overflow flaw in list_file()

6. Package List:

Red Hat Enterprise Linux Client (v. 7):

Source:
cpio-2.11-24.el7.src.rpm

x86_64:
cpio-2.11-24.el7.x86_64.rpm
cpio-debuginfo-2.11-24.el7.x86_64.rpm

Red Hat Enterprise Linux ComputeNode (v. 7):

Source:
cpio-2.11-24.el7.src.rpm

x86_64:
cpio-2.11-24.el7.x86_64.rpm
cpio-debuginfo-2.11-24.el7.x86_64.rpm

Red Hat Enterprise Linux Server (v. 7):

Source:
cpio-2.11-24.el7.src.rpm

aarch64:
cpio-2.11-24.el7.aarch64.rpm
cpio-debuginfo-2.11-24.el7.aarch64.rpm

ppc64:
cpio-2.11-24.el7.ppc64.rpm
cpio-debuginfo-2.11-24.el7.ppc64.rpm

ppc64le:
cpio-2.11-24.el7.ppc64le.rpm
cpio-debuginfo-2.11-24.el7.ppc64le.rpm

s390x:
cpio-2.11-24.el7.s390x.rpm
cpio-debuginfo-2.11-24.el7.s390x.rpm

x86_64:
cpio-2.11-24.el7.x86_64.rpm
cpio-debuginfo-2.11-24.el7.x86_64.rpm

Red Hat Enterprise Linux Workstation (v. 7):

Source:
cpio-2.11-24.el7.src.rpm

x86_64:
cpio-2.11-24.el7.x86_64.rpm
cpio-debuginfo-2.11-24.el7.x86_64.rpm

These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/

7. References:

https://access.redhat.com/security/cve/CVE-2014-9112
https://access.redhat.com/security/updates/classification/#moderate

8. Contact:

The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2015 Red Hat, Inc.
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