-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Important: libarchive security update Advisory ID: RHSA-2016:1850-01 Product: Red Hat Enterprise Linux Advisory URL: https://rhn.redhat.com/errata/RHSA-2016-1850.html Issue date: 2016-09-12 CVE Names: CVE-2015-8920 CVE-2015-8921 CVE-2015-8932 CVE-2016-4809 CVE-2016-5418 CVE-2016-5844 CVE-2016-7166 ===================================================================== 1. Summary: An update for libarchive is now available for Red Hat Enterprise Linux 6. 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 Desktop (v. 6) - i386, x86_64 Red Hat Enterprise Linux Desktop Optional (v. 6) - i386, x86_64 Red Hat Enterprise Linux HPC Node Optional (v. 6) - x86_64 Red Hat Enterprise Linux Server (v. 6) - i386, ppc64, s390x, x86_64 Red Hat Enterprise Linux Server Optional (v. 6) - i386, ppc64, s390x, x86_64 Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64 Red Hat Enterprise Linux Workstation Optional (v. 6) - i386, 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 read flaws were found in libarchive. Specially crafted AR or MTREE 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-2015-8920, CVE-2015-8921) * A denial of service vulnerability was found in libarchive's handling of GZIP streams. A crafted GZIP file could cause libarchive to allocate an excessive amount of memory, eventually leading to a crash. (CVE-2016-7166) * 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) * Multiple instances of undefined behavior due to arithmetic overflow were found in libarchive. Specially crafted Compress streams or ISO9660 volumes could potentially cause the application to fail to read the archive, or to crash. (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/): 1347084 - CVE-2016-4809 libarchive: Memory allocate error with symbolic links in cpio archives 1347086 - CVE-2016-7166 libarchive: Denial of service using a crafted gzip file 1348416 - CVE-2015-8920 libarchive: Stack out of bounds read in ar parser 1348772 - CVE-2015-8921 libarchive: Global out of bounds read in mtree parser 1348780 - CVE-2015-8932 libarchive: Undefined behavior / invalid shiftleft in TAR parser 1350280 - CVE-2016-5844 libarchive: undefined behaviour (integer overflow) in iso parser 6. Package List: Red Hat Enterprise Linux Desktop (v. 6): Source: libarchive-2.8.3-7.el6_8.src.rpm i386: libarchive-2.8.3-7.el6_8.i686.rpm libarchive-debuginfo-2.8.3-7.el6_8.i686.rpm x86_64: libarchive-2.8.3-7.el6_8.i686.rpm libarchive-2.8.3-7.el6_8.x86_64.rpm libarchive-debuginfo-2.8.3-7.el6_8.i686.rpm libarchive-debuginfo-2.8.3-7.el6_8.x86_64.rpm Red Hat Enterprise Linux Desktop Optional (v. 6): i386: libarchive-debuginfo-2.8.3-7.el6_8.i686.rpm libarchive-devel-2.8.3-7.el6_8.i686.rpm x86_64: libarchive-debuginfo-2.8.3-7.el6_8.i686.rpm libarchive-debuginfo-2.8.3-7.el6_8.x86_64.rpm libarchive-devel-2.8.3-7.el6_8.i686.rpm libarchive-devel-2.8.3-7.el6_8.x86_64.rpm Red Hat Enterprise Linux HPC Node Optional (v. 6): Source: libarchive-2.8.3-7.el6_8.src.rpm x86_64: libarchive-2.8.3-7.el6_8.i686.rpm libarchive-2.8.3-7.el6_8.x86_64.rpm libarchive-debuginfo-2.8.3-7.el6_8.i686.rpm libarchive-debuginfo-2.8.3-7.el6_8.x86_64.rpm libarchive-devel-2.8.3-7.el6_8.i686.rpm libarchive-devel-2.8.3-7.el6_8.x86_64.rpm Red Hat Enterprise Linux Server (v. 6): Source: libarchive-2.8.3-7.el6_8.src.rpm i386: libarchive-2.8.3-7.el6_8.i686.rpm libarchive-debuginfo-2.8.3-7.el6_8.i686.rpm ppc64: libarchive-2.8.3-7.el6_8.ppc.rpm libarchive-2.8.3-7.el6_8.ppc64.rpm libarchive-debuginfo-2.8.3-7.el6_8.ppc.rpm libarchive-debuginfo-2.8.3-7.el6_8.ppc64.rpm s390x: libarchive-2.8.3-7.el6_8.s390.rpm libarchive-2.8.3-7.el6_8.s390x.rpm libarchive-debuginfo-2.8.3-7.el6_8.s390.rpm libarchive-debuginfo-2.8.3-7.el6_8.s390x.rpm x86_64: libarchive-2.8.3-7.el6_8.i686.rpm libarchive-2.8.3-7.el6_8.x86_64.rpm libarchive-debuginfo-2.8.3-7.el6_8.i686.rpm libarchive-debuginfo-2.8.3-7.el6_8.x86_64.rpm Red Hat Enterprise Linux Server Optional (v. 6): i386: libarchive-debuginfo-2.8.3-7.el6_8.i686.rpm libarchive-devel-2.8.3-7.el6_8.i686.rpm ppc64: libarchive-debuginfo-2.8.3-7.el6_8.ppc.rpm libarchive-debuginfo-2.8.3-7.el6_8.ppc64.rpm libarchive-devel-2.8.3-7.el6_8.ppc.rpm libarchive-devel-2.8.3-7.el6_8.ppc64.rpm s390x: libarchive-debuginfo-2.8.3-7.el6_8.s390.rpm libarchive-debuginfo-2.8.3-7.el6_8.s390x.rpm libarchive-devel-2.8.3-7.el6_8.s390.rpm libarchive-devel-2.8.3-7.el6_8.s390x.rpm x86_64: libarchive-debuginfo-2.8.3-7.el6_8.i686.rpm libarchive-debuginfo-2.8.3-7.el6_8.x86_64.rpm libarchive-devel-2.8.3-7.el6_8.i686.rpm libarchive-devel-2.8.3-7.el6_8.x86_64.rpm Red Hat Enterprise Linux Workstation (v. 6): Source: libarchive-2.8.3-7.el6_8.src.rpm i386: libarchive-2.8.3-7.el6_8.i686.rpm libarchive-debuginfo-2.8.3-7.el6_8.i686.rpm x86_64: libarchive-2.8.3-7.el6_8.i686.rpm libarchive-2.8.3-7.el6_8.x86_64.rpm libarchive-debuginfo-2.8.3-7.el6_8.i686.rpm libarchive-debuginfo-2.8.3-7.el6_8.x86_64.rpm Red Hat Enterprise Linux Workstation Optional (v. 6): i386: libarchive-debuginfo-2.8.3-7.el6_8.i686.rpm libarchive-devel-2.8.3-7.el6_8.i686.rpm x86_64: libarchive-debuginfo-2.8.3-7.el6_8.i686.rpm libarchive-debuginfo-2.8.3-7.el6_8.x86_64.rpm libarchive-devel-2.8.3-7.el6_8.i686.rpm libarchive-devel-2.8.3-7.el6_8.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-2015-8920 https://access.redhat.com/security/cve/CVE-2015-8921 https://access.redhat.com/security/cve/CVE-2015-8932 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-2016-7166 https://access.redhat.com/security/updates/classification/#important 8. Contact: The Red Hat security contact is . More contact details at https://access.redhat.com/security/team/contact/ Copyright 2016 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iD8DBQFX1wxlXlSAg2UNWIIRAiK3AJoDa+37CtcxIy2UFieXxeNXLotiCgCcD411 h4H/7wKipV7MTN2z247GmnM= =RwwI -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://www.redhat.com/mailman/listinfo/rhsa-announce