RHSA-2016:0760 - Security Advisory

Topic

An update for file is now available for Red Hat Enterprise Linux 6.

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

Description

The file command is used to identify a particular file according to the type of data the file contains. It can identify many different file types, including Executable and Linkable Format (ELF) binary files, system libraries, RPM packages, and different graphics formats.

Security Fix(es):

• Multiple flaws were found in the file regular expression rules for detecting various files. A remote attacker could use these flaws to cause file to consume an excessive amount of CPU. (CVE-2014-3538)
• A denial of service flaw was found in the way file parsed certain Composite Document Format (CDF) files. A remote attacker could use this flaw to crash file via a specially crafted CDF file. (CVE-2014-3587)
• Multiple flaws were found in the way file parsed Executable and Linkable Format (ELF) files. A remote attacker could use these flaws to cause file to crash, disclose portions of its memory, or consume an excessive amount of system resources. (CVE-2014-3710, CVE-2014-8116, CVE-2014-8117, CVE-2014-9620, CVE-2014-9653)

Red Hat would like to thank Thomas Jarosch (Intra2net AG) for reporting CVE-2014-8116 and CVE-2014-8117. The CVE-2014-3538 issue was discovered by Jan Kaluža (Red Hat Web Stack Team) and the CVE-2014-3710 issue was discovered by Francisco Alonso (Red Hat Product Security).

For detailed information on changes in this release, see the Red Hat Enterprise Linux 6.8 Release Notes and Red Hat Enterprise Linux 6.8 Technical Notes linked from the References section.

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

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

Affected Products

• Red Hat Enterprise Linux Server 6 x86_64
• Red Hat Enterprise Linux Server 6 i386
• Red Hat Enterprise Linux Server - Extended Life Cycle Support 6 i386
• Red Hat Enterprise Linux Workstation 6 x86_64
• Red Hat Enterprise Linux Workstation 6 i386
• Red Hat Enterprise Linux Desktop 6 x86_64
• Red Hat Enterprise Linux Desktop 6 i386
• Red Hat Enterprise Linux for IBM z Systems 6 s390x
• Red Hat Enterprise Linux for Power, big endian 6 ppc64
• Red Hat Enterprise Linux for Scientific Computing 6 x86_64
• Red Hat Enterprise Linux Server from RHUI 6 x86_64
• Red Hat Enterprise Linux Server from RHUI 6 i386
• Red Hat Enterprise Linux Server - Extended Life Cycle Support 6 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support (for IBM z Systems) 6 s390x

Fixes

• BZ - 809898 - RFE: add detection of Python bytecode for recent versions of Python
• BZ - 1080453 - file: incorrectly applied magic/Magdir patch [rhel-6]
• BZ - 1098222 - CVE-2014-3538 file: unrestricted regular expression matching
• BZ - 1128587 - CVE-2014-3587 file: incomplete fix for CVE-2012-1571 in cdf_read_property_info
• BZ - 1154802 - file reports "data" instead of zip file when the first file zipped is a file named "mime"
• BZ - 1155071 - CVE-2014-3710 file: out-of-bounds read in elf note headers
• BZ - 1169509 - file: report full java version for 1.7 and 1.8 class files
• BZ - 1171580 - CVE-2014-8116 file: multiple denial of service issues (resource consumption)
• BZ - 1174606 - CVE-2014-8117 file: denial of service issue (resource consumption)
• BZ - 1180639 - CVE-2014-9620 file: limit the number of ELF notes processed
• BZ - 1190116 - CVE-2014-9653 file: malformed elf file causes access to uninitialized memory
• BZ - 1243650 - If we execute the file command against /var/log/messages then we see "/var/log/messages: ASCII Pascal program text" ?

CVEs

• CVE-2014-3538
• CVE-2014-3587
• CVE-2014-3710
• CVE-2014-8116
• CVE-2014-8117
• CVE-2014-9620
• CVE-2014-9653

References

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