Synopsis

Moderate: hivex security, bug fix, and enhancement update

Type/Severity

Security Advisory: Moderate

Topic

Updated hivex packages that fix one security issue, several bugs, and add
various enhancements 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.

Description

Hive files are undocumented binary files that Windows uses to store the
Windows Registry on disk. Hivex is a library that can read and write to
these files.

It was found that hivex attempted to read beyond its allocated buffer when
reading a hive file with a very small size or with a truncated or
improperly formatted content. An attacker able to supply a specially
crafted hive file to an application using the hivex library could possibly
use this flaw to execute arbitrary code with the privileges of the user
running that application. (CVE-2014-9273)

Red Hat would like to thank Mahmoud Al-Qudsi of NeoSmart Technologies for
reporting this issue.

The hivex package has been upgraded to upstream version 1.3.10, which
provides a number of bug fixes and enhancements over the previous version.
(BZ#1023978)

This update also fixes the following bugs:

• Due to an error in the hivex_value_data_cell_offset() function, the hivex

utility could, in some cases, print an "Argument list is too long" message
and terminate unexpectedly when processing hive files from the Windows
Registry. This update fixes the underlying code and hivex now processes
hive files as expected. (BZ#1145056)

• A typographical error in the Win::Hivex.3pm manual page has been

corrected. (BZ#1099286)

Users of hivex are advised to upgrade to these updated packages, which
correct these issues and adds these enhancements.

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

Affected Products

• Red Hat Enterprise Linux Server 7 x86_64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 7.7 x86_64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 7.6 x86_64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 7.5 x86_64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 7.4 x86_64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 7.3 x86_64
• Red Hat Enterprise Linux Server from RHUI 7 x86_64
• Red Hat Enterprise Linux Server - AUS 7.7 x86_64
• Red Hat Enterprise Linux Server - AUS 7.6 x86_64
• Red Hat Enterprise Linux Server - AUS 7.4 x86_64
• Red Hat Enterprise Linux Server - AUS 7.3 x86_64
• Red Hat Enterprise Linux Workstation 7 x86_64
• Red Hat Enterprise Linux Desktop 7 x86_64
• Red Hat Enterprise Linux Server - TUS 7.7 x86_64
• Red Hat Enterprise Linux Server - TUS 7.6 x86_64
• Red Hat Enterprise Linux Server - TUS 7.3 x86_64
• Red Hat Enterprise Linux Server - Update Services for SAP Solutions 7.7 x86_64
• Red Hat Enterprise Linux Server - Update Services for SAP Solutions 7.6 x86_64
• Red Hat Enterprise Linux Server - Update Services for SAP Solutions 7.4 x86_64
• Red Hat Enterprise Linux Server - Update Services for SAP Solutions 7.3 x86_64

Fixes

• BZ - 1023978 - Rebase hivex in RHEL 7.1
• BZ - 1099286 - typo error in man page
• BZ - 1145056 - hivexml generate "Argument list too long" on some Windows Registry
• BZ - 1158992 - CVE-2014-9273 hivex: missing checks for small-sized files [rhel-7.1]
• BZ - 1167756 - CVE-2014-9273 hivex: missing checks for small-sized files

CVEs

• CVE-2014-9273

References