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Category:   Application (Generic)  >   libarchive Vendors:   libarchive
(Red Hat Issues Fix) libarchive Integer Overflow in Processing Files Lets Remote Users Execute Arbitrary Code
SecurityTracker Alert ID:  1036771
SecurityTracker URL:  http://securitytracker.com/id/1036771
CVE Reference:   CVE-2016-5844   (Links to External Site)
Date:  Sep 13 2016
Impact:   Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 3.2.0 and prior
Description:   A vulnerability was reported in libarchive. A remote user can cause arbitrary code to be executed on the target system.

A remote user can create a specially crafted file that, when loaded by the target application, will trigger an integer overflow in choose_volume() and execute arbitrary code on the target system.

The original advisory is available at:

https://blog.fuzzing-project.org/48-Out-of-bounds-read-and-signed-integer-overflow-in-libarchive.html

Hanno Boeck reported this vulnerability.

Impact:   A remote user can a file that, when processed by the target application, will execute arbitrary code on the target system.
Solution:   Red Hat has issued a fix.

The Red Hat advisory is available at:

https://rhn.redhat.com/errata/RHSA-2016-1844.html

Vendor URL:  rhn.redhat.com/errata/RHSA-2016-1844.html (Links to External Site)
Cause:   Boundary error
Underlying OS:  Linux (Red Hat Enterprise)
Underlying OS Comments:  7

Message History:   This archive entry is a follow-up to the message listed below.
Jun 25 2016 libarchive Integer Overflow in Processing Files Lets Remote Users Execute Arbitrary Code



 Source Message Contents

Subject:  [RHSA-2016:1844-01] Important: libarchive security update

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=====================================================================
                   Red Hat Security Advisory

Synopsis:          Important: libarchive security update
Advisory ID:       RHSA-2016:1844-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2016-1844.html
Issue date:        2016-09-12
CVE Names:         CVE-2015-8916 CVE-2015-8917 CVE-2015-8919 
                   CVE-2015-8920 CVE-2015-8921 CVE-2015-8922 
                   CVE-2015-8923 CVE-2015-8924 CVE-2015-8925 
                   CVE-2015-8926 CVE-2015-8928 CVE-2015-8930 
                   CVE-2015-8931 CVE-2015-8932 CVE-2015-8934 
                   CVE-2016-1541 CVE-2016-4300 CVE-2016-4302 
                   CVE-2016-4809 CVE-2016-5418 CVE-2016-5844 
                   CVE-2016-6250 CVE-2016-7166 
=====================================================================

1. Summary:

An update for libarchive is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact
of Important. 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.

2. Relevant releases/architectures:

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

3. Description:

The libarchive programming library can create and read several different
streaming archive formats, including GNU tar, cpio, and ISO 9660 CD-ROM
images. Libarchive is used notably in the bsdtar utility, scripting
language bindings such as python-libarchive, and several popular desktop
file managers.

Security Fix(es):

* A flaw was found in the way libarchive handled hardlink archive entries
of non-zero size. Combined with flaws in libarchive's file system
sandboxing, this issue could cause an application using libarchive to
overwrite arbitrary files with arbitrary data from the archive.
(CVE-2016-5418)

* Multiple out-of-bounds write flaws were found in libarchive. Specially
crafted ZIP, 7ZIP, or RAR files could cause a heap overflow, potentially
allowing code execution in the context of the application using libarchive.
(CVE-2016-1541, CVE-2016-4300, CVE-2016-4302)

* Multiple out-of-bounds read flaws were found in libarchive. Specially
crafted LZA/LZH, AR, MTREE, ZIP, TAR, or RAR files could cause the
application to read data out of bounds, potentially disclosing a small
amount of application memory, or causing an application crash.
(CVE-2015-8919, CVE-2015-8920, CVE-2015-8921, CVE-2015-8923, CVE-2015-8924,
CVE-2015-8925, CVE-2015-8926, CVE-2015-8928, CVE-2015-8934)

* Multiple NULL pointer dereference flaws were found in libarchive.
Specially crafted RAR, CAB, or 7ZIP files could cause an application using
libarchive to crash. (CVE-2015-8916, CVE-2015-8917, CVE-2015-8922)

* Multiple infinite loop / resource exhaustion flaws were found in
libarchive. Specially crafted GZIP or ISO files could cause the application
to consume an excessive amount of resources, eventually leading to a crash
on memory exhaustion. (CVE-2016-7166, CVE-2015-8930)

* A denial of service vulnerability was found in libarchive. A specially
crafted CPIO archive containing a symbolic link to a large target path
could cause memory allocation to fail, causing an application using
libarchive that attempted to view or extract such archive to crash.
(CVE-2016-4809)

* An integer overflow flaw, leading to a buffer overflow, was found in
libarchive's construction of ISO9660 volumes. Attempting to create an
ISO9660 volume with 2 GB or 4 GB file names could cause the application to
attempt to allocate 20 GB of memory. If this were to succeed, it could lead
to an out of bounds write on the heap and potential code execution.
(CVE-2016-6250)

* Multiple instances of undefined behavior due to arithmetic overflow were
found in libarchive. Specially crafted MTREE archives, Compress streams, or
ISO9660 volumes could potentially cause the application to fail to read the
archive, or to crash. (CVE-2015-8931, CVE-2015-8932, CVE-2016-5844)

Red Hat would like to thank Insomnia Security for reporting CVE-2016-5418.

4. 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

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

1334211 - CVE-2016-1541 libarchive: zip_read_mac_metadata() heap-based buffer overflow
1347084 - CVE-2016-4809 libarchive: Memory allocate error with symbolic links in cpio archives
1347085 - CVE-2016-6250 libarchive: Buffer overflow when writing large iso9660 containers
1347086 - CVE-2016-7166 libarchive: Denial of service using a crafted gzip file
1348412 - CVE-2015-8916 libarchive: NULL pointer access in RAR parser through bsdtar
1348413 - CVE-2015-8917 libarchive: NULL pointer access in CAB parser
1348414 - CVE-2015-8919 libarchive: Heap out of bounds read in LHA/LZH parser
1348416 - CVE-2015-8920 libarchive: Stack out of bounds read in ar parser
1348419 - CVE-2015-8922 libarchive: NULL pointer access in 7z parser
1348421 - CVE-2015-8924 libarchive: Heap out of bounds read in TAR parser
1348423 - CVE-2015-8925 libarchive: Unclear invalid memory read in mtree parser
1348424 - CVE-2015-8926 libarchive: NULL pointer access in RAR parser
1348429 - CVE-2015-8928 libarchive: Heap out of bounds read in mtree parser
1348439 - CVE-2016-4300 libarchive: Heap buffer overflow vulnerability in the 7zip read_SubStreamsInfo
1348444 - CVE-2016-4302 libarchive: Heap buffer overflow in the Rar decompression functionality
1348772 - CVE-2015-8921 libarchive: Global out of bounds read in mtree parser
1348773 - CVE-2015-8923 libarchive: Unclear crashes in ZIP parser
1348779 - CVE-2015-8931 libarchive: Undefined behavior (signed integer overflow) in mtree parser
1348780 - CVE-2015-8932 libarchive: Undefined behavior / invalid shiftleft in TAR parser
1349204 - CVE-2015-8930 libarchive: Endless loop in ISO parser
1349229 - CVE-2015-8934 libarchive: out of bounds heap read in RAR parser
1350280 - CVE-2016-5844 libarchive: undefined behaviour (integer overflow) in iso parser

6. Package List:

Red Hat Enterprise Linux Client (v. 7):

Source:
libarchive-3.1.2-10.el7_2.src.rpm

x86_64:
libarchive-3.1.2-10.el7_2.i686.rpm
libarchive-3.1.2-10.el7_2.x86_64.rpm
libarchive-debuginfo-3.1.2-10.el7_2.i686.rpm
libarchive-debuginfo-3.1.2-10.el7_2.x86_64.rpm

Red Hat Enterprise Linux Client Optional (v. 7):

x86_64:
bsdcpio-3.1.2-10.el7_2.x86_64.rpm
bsdtar-3.1.2-10.el7_2.x86_64.rpm
libarchive-debuginfo-3.1.2-10.el7_2.i686.rpm
libarchive-debuginfo-3.1.2-10.el7_2.x86_64.rpm
libarchive-devel-3.1.2-10.el7_2.i686.rpm
libarchive-devel-3.1.2-10.el7_2.x86_64.rpm

Red Hat Enterprise Linux ComputeNode (v. 7):

Source:
libarchive-3.1.2-10.el7_2.src.rpm

x86_64:
libarchive-3.1.2-10.el7_2.i686.rpm
libarchive-3.1.2-10.el7_2.x86_64.rpm
libarchive-debuginfo-3.1.2-10.el7_2.i686.rpm
libarchive-debuginfo-3.1.2-10.el7_2.x86_64.rpm

Red Hat Enterprise Linux ComputeNode Optional (v. 7):

x86_64:
bsdcpio-3.1.2-10.el7_2.x86_64.rpm
bsdtar-3.1.2-10.el7_2.x86_64.rpm
libarchive-debuginfo-3.1.2-10.el7_2.i686.rpm
libarchive-debuginfo-3.1.2-10.el7_2.x86_64.rpm
libarchive-devel-3.1.2-10.el7_2.i686.rpm
libarchive-devel-3.1.2-10.el7_2.x86_64.rpm

Red Hat Enterprise Linux Server (v. 7):

Source:
libarchive-3.1.2-10.el7_2.src.rpm

ppc64:
libarchive-3.1.2-10.el7_2.ppc.rpm
libarchive-3.1.2-10.el7_2.ppc64.rpm
libarchive-debuginfo-3.1.2-10.el7_2.ppc.rpm
libarchive-debuginfo-3.1.2-10.el7_2.ppc64.rpm

ppc64le:
libarchive-3.1.2-10.el7_2.ppc64le.rpm
libarchive-debuginfo-3.1.2-10.el7_2.ppc64le.rpm

s390x:
libarchive-3.1.2-10.el7_2.s390.rpm
libarchive-3.1.2-10.el7_2.s390x.rpm
libarchive-debuginfo-3.1.2-10.el7_2.s390.rpm
libarchive-debuginfo-3.1.2-10.el7_2.s390x.rpm

x86_64:
libarchive-3.1.2-10.el7_2.i686.rpm
libarchive-3.1.2-10.el7_2.x86_64.rpm
libarchive-debuginfo-3.1.2-10.el7_2.i686.rpm
libarchive-debuginfo-3.1.2-10.el7_2.x86_64.rpm

Red Hat Enterprise Linux Server Optional (v. 7):

ppc64:
bsdcpio-3.1.2-10.el7_2.ppc64.rpm
bsdtar-3.1.2-10.el7_2.ppc64.rpm
libarchive-debuginfo-3.1.2-10.el7_2.ppc.rpm
libarchive-debuginfo-3.1.2-10.el7_2.ppc64.rpm
libarchive-devel-3.1.2-10.el7_2.ppc.rpm
libarchive-devel-3.1.2-10.el7_2.ppc64.rpm

ppc64le:
bsdcpio-3.1.2-10.el7_2.ppc64le.rpm
bsdtar-3.1.2-10.el7_2.ppc64le.rpm
libarchive-debuginfo-3.1.2-10.el7_2.ppc64le.rpm
libarchive-devel-3.1.2-10.el7_2.ppc64le.rpm

s390x:
bsdcpio-3.1.2-10.el7_2.s390x.rpm
bsdtar-3.1.2-10.el7_2.s390x.rpm
libarchive-debuginfo-3.1.2-10.el7_2.s390.rpm
libarchive-debuginfo-3.1.2-10.el7_2.s390x.rpm
libarchive-devel-3.1.2-10.el7_2.s390.rpm
libarchive-devel-3.1.2-10.el7_2.s390x.rpm

x86_64:
bsdcpio-3.1.2-10.el7_2.x86_64.rpm
bsdtar-3.1.2-10.el7_2.x86_64.rpm
libarchive-debuginfo-3.1.2-10.el7_2.i686.rpm
libarchive-debuginfo-3.1.2-10.el7_2.x86_64.rpm
libarchive-devel-3.1.2-10.el7_2.i686.rpm
libarchive-devel-3.1.2-10.el7_2.x86_64.rpm

Red Hat Enterprise Linux Workstation (v. 7):

Source:
libarchive-3.1.2-10.el7_2.src.rpm

x86_64:
libarchive-3.1.2-10.el7_2.i686.rpm
libarchive-3.1.2-10.el7_2.x86_64.rpm
libarchive-debuginfo-3.1.2-10.el7_2.i686.rpm
libarchive-debuginfo-3.1.2-10.el7_2.x86_64.rpm

Red Hat Enterprise Linux Workstation Optional (v. 7):

x86_64:
bsdcpio-3.1.2-10.el7_2.x86_64.rpm
bsdtar-3.1.2-10.el7_2.x86_64.rpm
libarchive-debuginfo-3.1.2-10.el7_2.i686.rpm
libarchive-debuginfo-3.1.2-10.el7_2.x86_64.rpm
libarchive-devel-3.1.2-10.el7_2.i686.rpm
libarchive-devel-3.1.2-10.el7_2.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-2015-8916
https://access.redhat.com/security/cve/CVE-2015-8917
https://access.redhat.com/security/cve/CVE-2015-8919
https://access.redhat.com/security/cve/CVE-2015-8920
https://access.redhat.com/security/cve/CVE-2015-8921
https://access.redhat.com/security/cve/CVE-2015-8922
https://access.redhat.com/security/cve/CVE-2015-8923
https://access.redhat.com/security/cve/CVE-2015-8924
https://access.redhat.com/security/cve/CVE-2015-8925
https://access.redhat.com/security/cve/CVE-2015-8926
https://access.redhat.com/security/cve/CVE-2015-8928
https://access.redhat.com/security/cve/CVE-2015-8930
https://access.redhat.com/security/cve/CVE-2015-8931
https://access.redhat.com/security/cve/CVE-2015-8932
https://access.redhat.com/security/cve/CVE-2015-8934
https://access.redhat.com/security/cve/CVE-2016-1541
https://access.redhat.com/security/cve/CVE-2016-4300
https://access.redhat.com/security/cve/CVE-2016-4302
https://access.redhat.com/security/cve/CVE-2016-4809
https://access.redhat.com/security/cve/CVE-2016-5418
https://access.redhat.com/security/cve/CVE-2016-5844
https://access.redhat.com/security/cve/CVE-2016-6250
https://access.redhat.com/security/cve/CVE-2016-7166
https://access.redhat.com/security/updates/classification/#important

8. Contact:

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

Copyright 2016 Red Hat, Inc.
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