==========================================================================
Ubuntu Security Notice USN-3225-1
March 09, 2017
libarchive vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
– Ubuntu 16.10
– Ubuntu 16.04 LTS
– Ubuntu 14.04 LTS
– Ubuntu 12.04 LTS
Summary:
libarchive could be made to crash, overwrite files, or run programs as your
login if it opened a specially crafted file.
Software Description:
– libarchive: Library to read/write archive files
Details:
It was discovered that libarchive incorrectly handled hardlink entries when
extracting archives. A remote attacker could possibly use this issue to
overwrite arbitrary files. (CVE-2016-5418)
Christian Wressnegger, Alwin Maier, and Fabian Yamaguchi discovered that
libarchive incorrectly handled filename lengths when writing ISO9660
archives. A remote attacker could use this issue to cause libarchive to
crash, resulting in a denial of service, or possibly execute arbitrary
code. This issue only applied to Ubuntu 12.04 LTS, Ubuntu 14.04 LTS and
Ubuntu 16.04 LTS. (CVE-2016-6250)
Alexander Cherepanov discovered that libarchive incorrectly handled
recursive decompressions. A remote attacker could possibly use this issue
to cause libarchive to hang, resulting in a denial of service. This issue
only applied to Ubuntu 12.04 LTS, Ubuntu 14.04 LTS and Ubuntu 16.04 LTS.
(CVE-2016-7166)
It was discovered that libarchive incorrectly handled non-printable
multibyte characters in filenames. A remote attacker could possibly use
this issue to cause libarchive to crash, resulting in a denial of service.
(CVE-2016-8687)
It was discovered that libarchive incorrectly handled line sizes when
extracting certain archives. A remote attacker could possibly use this
issue to cause libarchive to crash, resulting in a denial of service.
(CVE-2016-8688)
It was discovered that libarchive incorrectly handled multiple EmptyStream
attributes when extracting certain 7zip archives. A remote attacker could
possibly use this issue to cause libarchive to crash, resulting in a denial
of service. (CVE-2016-8689)
Jakub Jirasek discovered that libarchive incorrectly handled memory when
extracting certain archives. A remote attacker could possibly use this
issue to cause libarchive to crash, resulting in a denial of service.
(CVE-2017-5601)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 16.10:
libarchive13 3.2.1-2ubuntu0.1
Ubuntu 16.04 LTS:
libarchive13 3.1.2-11ubuntu0.16.04.3
Ubuntu 14.04 LTS:
libarchive13 3.1.2-7ubuntu2.4
Ubuntu 12.04 LTS:
libarchive12 3.0.3-6ubuntu1.4
In general, a standard system update will make all the necessary changes.
References:
http://www.ubuntu.com/usn/usn-3225-1
CVE-2016-5418, CVE-2016-6250, CVE-2016-7166, CVE-2016-8687,
CVE-2016-8688, CVE-2016-8689, CVE-2017-5601
Package Information:
https://launchpad.net/ubuntu/+source/libarchive/3.2.1-2ubuntu0.1
https://launchpad.net/ubuntu/+source/libarchive/3.1.2-11ubuntu0.16.04.3
https://launchpad.net/ubuntu/+source/libarchive/3.1.2-7ubuntu2.4
https://launchpad.net/ubuntu/+source/libarchive/3.0.3-6ubuntu1.4
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