-----BEGIN PGP SIGNED MESSAGE-----Hash: SHA512=============================================================================FreeBSD-SA-16:23.libarchive Security AdvisoryThe FreeBSD ProjectTopic: Buffer overflow in libarchive(3)Category: contribModule: libarchiveAnnounced: 2016-05-31Affects: FreeBSD 9.3Corrected: 2016-05-21 09:27:30 UTC (stable/9, 9.3-STABLE)2016-05-31 16:23:56 UTC (releng/9.3, 9.3-RELEASE-p43)CVE Name: CVE-2013-0211For general information regarding FreeBSD Security Advisories,including descriptions of the fields above, security branches, and thefollowing sections, please visit I. BackgroundThe libarchive(3) library provides a flexible interface for reading andwriting streaming archive files such as tar and cpio, and has been thebasis for FreeBSD's implementation of the tar(1) and cpio(1) utilitiessince FreeBSD 5.3.II. Problem DescriptionAn integer signedness error in the archive_write_zip_data() function inarchive_write_set_format_zip.c in libarchive(2) could lead to a bufferoverflow on 64-bit machines.III. ImpactAn attacker who can provide input of their choice for creating a ZIP archivecan cause a buffer overflow in libarchive(2) that results in a core dump orpossibly execution of arbitrary code provided by the attacker.IV. WorkaroundNo workaround is available but 32-bit systems are not vulnerable.V. SolutionPerform one of the following:1) Upgrade your vulnerable system to a supported FreeBSD stable orrelease / security branch (releng) dated after the correction date.Reboot is not required.2) To update your vulnerable system via a binary patch:Systems running a RELEASE version of FreeBSD on the i386 or amd64platforms can be updated via the freebsd-update(8) utility:# freebsd-update fetch# freebsd-update installA reboot is not required.3) To update your vulnerable system via a source code patch:The following patches have been verified to apply to the applicableFreeBSD release branches.a) Download the relevant patch from the location below, and verify thedetached PGP signature using your PGP utility.# fetch http://ift.tt/1Us7vLF# fetch http://ift.tt/1XMZILd# gpg --verify libarchive.patch.ascb) Apply the patch. Execute the following commands as root:# cd /usr/src# patch < /path/to/patchc) Recompile the operating system using buildworld and installworld asdescribed in Restart the applicable daemons, or reboot the system.VI. Correction detailsThe following list contains the correction revision numbers for eachaffected branch.Branch/path Revision- -------------------------------------------------------------------------stable/9/ r300363releng/9.3/ r301044- -------------------------------------------------------------------------To see which files were modified by a particular revision, run thefollowing command, replacing NNNNNN with the revision number, on amachine with Subversion installed:# svn diff -cNNNNNN --summarize svn://svn.freebsd.org/baseOr visit the following URL, replacing NNNNNN with the revision number:VII. ReferencesThe latest revision of this advisory is available at.asc>-----BEGIN PGP SIGNATURE-----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XTv8-----END PGP SIGNATURE-----[ reply ]from SecurityFocus Vulnerabilities http://ift.tt/1XMZMdE
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FreeBSD-SA-16:23.libarchive Security Advisory
The FreeBSD Project
Topic: Buffer overflow in libarchive(3)
Category: contrib
Module: libarchive
Announced: 2016-05-31
Affects: FreeBSD 9.3
Corrected: 2016-05-21 09:27:30 UTC (stable/9, 9.3-STABLE)
2016-05-31 16:23:56 UTC (releng/9.3, 9.3-RELEASE-p43)
CVE Name: CVE-2013-0211
For general information regarding FreeBSD Security Advisories,
including descriptions of the fields above, security branches, and the
following sections, please visit
I. Background
The libarchive(3) library provides a flexible interface for reading and
writing streaming archive files such as tar and cpio, and has been the
basis for FreeBSD's implementation of the tar(1) and cpio(1) utilities
since FreeBSD 5.3.
II. Problem Description
An integer signedness error in the archive_write_zip_data() function in
archive_write_set_format_zip.c in libarchive(2) could lead to a buffer
overflow on 64-bit machines.
III. Impact
An attacker who can provide input of their choice for creating a ZIP archive
can cause a buffer overflow in libarchive(2) that results in a core dump or
possibly execution of arbitrary code provided by the attacker.
IV. Workaround
No workaround is available but 32-bit systems are not vulnerable.
V. Solution
Perform one of the following:
1) Upgrade your vulnerable system to a supported FreeBSD stable or
release / security branch (releng) dated after the correction date.
Reboot is not required.
2) To update your vulnerable system via a binary patch:
Systems running a RELEASE version of FreeBSD on the i386 or amd64
platforms can be updated via the freebsd-update(8) utility:
# freebsd-update fetch
# freebsd-update install
A reboot is not required.
3) To update your vulnerable system via a source code patch:
The following patches have been verified to apply to the applicable
FreeBSD release branches.
a) Download the relevant patch from the location below, and verify the
detached PGP signature using your PGP utility.
# fetch http://ift.tt/1Us7vLF
# fetch http://ift.tt/1XMZILd
# gpg --verify libarchive.patch.asc
b) Apply the patch. Execute the following commands as root:
# cd /usr/src
# patch < /path/to/patch
c) Recompile the operating system using buildworld and installworld as
described in
Restart the applicable daemons, or reboot the system.
VI. Correction details
The following list contains the correction revision numbers for each
affected branch.
Branch/path Revision
- ------------------------------------------------------------------------
-
stable/9/ r300363
releng/9.3/ r301044
- ------------------------------------------------------------------------
-
To see which files were modified by a particular revision, run the
following command, replacing NNNNNN with the revision number, on a
machine with Subversion installed:
# svn diff -cNNNNNN --summarize svn://svn.freebsd.org/base
Or visit the following URL, replacing NNNNNN with the revision number:
VII. References
The latest revision of this advisory is available at
.asc>
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