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.

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.

An update of the libarchive package has been released.

Hanno Boeck and Marcin Noga discovered multiple vulnerabilities in libarchive; processing malformed archives may result in denial of service or the execution of arbitrary code.

The remote Oracle Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2016-1844 advisory.

    - Fixes variation of CVE-2016-5418: Hard links could include '..' in their path.
    - Fixes CVE-2016-5418: Archive Entry with type 1 (hardlink) causes file overwrite (#1365777)

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Ubuntu 14.04 LTS / 16.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-3033-1 advisory.

    Hanno Bck discovered that libarchive contained multiple security issues when processing certain     malformed archive files. A remote attacker could use this issue to cause libarchive to crash, resulting in     a denial of service, or possibly execute arbitrary code. (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-2015-8933, CVE-2015-8934, CVE-2016-5844)

    Marcin Icewall Noga discovered that libarchive contained multiple security issues when processing     certain malformed archive files. A remote attacker could use this issue to cause libarchive to crash,     resulting in a denial of service, or possibly execute arbitrary code. (CVE-2016-4300, CVE-2016-4302)

    It was discovered that libarchive incorrectly handled memory allocation with large cpio symlinks. A remote     attacker could use this issue to possibly cause libarchive to crash, resulting in a denial of service.
    (CVE-2016-4809)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Several vulnerabilities were discovered in libarchive, a library for reading and writing archives in various formats. An attacker can take advantage of these flaws to cause a denial of service against an application using the libarchive library (application crash), or potentially execute arbitrary code with the privileges of the user running the application.

For Debian 7 'Wheezy', these problems have been fixed in version 3.0.4-3+wheezy2.

We recommend that you upgrade your libarchive packages.

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
93450	RHEL 7 : libarchive (RHSA-2016:1844)	Nessus	Red Hat Local Security Checks	2016/9/13	2026/1/26	high
121677	Photon OS 1.0: Libarchive PHSA-2017-0010	Nessus	PhotonOS Local Security Checks	2019/2/7	2024/7/22	high
93238	Debian DSA-3657-1 : libarchive - security update	Nessus	Debian Local Security Checks	2016/8/31	2026/1/27	high
93446	Oracle Linux 7 : libarchive (ELSA-2016-1844)	Nessus	Oracle Linux Local Security Checks	2016/9/13	2026/1/26	high
93541	CentOS 7 : libarchive (CESA-2016:1844)	Nessus	CentOS Local Security Checks	2016/9/16	2026/1/23	high
92312	Ubuntu 14.04 LTS / 16.04 LTS : libarchive vulnerabilities (USN-3033-1)	Nessus	Ubuntu Local Security Checks	2016/7/15	2024/8/27	high
92500	Debian DLA-554-1 : libarchive security update	Nessus	Debian Local Security Checks	2016/7/22	2026/1/30	high

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