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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2006.0653 -- [RedHat] Low: ncompress security update 13 September 2006 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: ncompress Publisher: Red Hat Operating System: Red Hat Enterprise Linux AS/ES/WS 4 Red Hat Enterprise Linux Desktop 4 Red Hat Enterprise Linux AS/ES/WS 3 Red Hat Desktop 3 Red Hat Enterprise Linux AS/ES/WS 2.1 Red Hat Linux Advanced Workstation 2.1 UNIX variants (UNIX, Linux, OSX) Impact: Execute Arbitrary Code/Commands Access: Remote/Unauthenticated CVE Names: CVE-2006-1168 Original Bulletin: https://rhn.redhat.com/errata/RHSA-2006-0663.html Comment: This advisory references vulnerabilities in products which may run on platforms other than Red Hat. It is recommended that administrators running systems with ncompress installed check for an updated version of the software for their operating system. - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 - - --------------------------------------------------------------------- Red Hat Security Advisory Synopsis: Low: ncompress security update Advisory ID: RHSA-2006:0663-01 Advisory URL: https://rhn.redhat.com/errata/RHSA-2006-0663.html Issue date: 2006-09-12 Updated on: 2006-09-12 Product: Red Hat Enterprise Linux CVE Names: CVE-2006-1168 - - --------------------------------------------------------------------- 1. Summary: Updated ncompress packages that address a security issue and fix bugs are now available. This update has been rated as having low security impact by the Red Hat Security Response Team. 2. Relevant releases/architectures: Red Hat Enterprise Linux AS (Advanced Server) version 2.1 - i386, ia64 Red Hat Linux Advanced Workstation 2.1 - ia64 Red Hat Enterprise Linux ES version 2.1 - i386 Red Hat Enterprise Linux WS version 2.1 - i386 Red Hat Enterprise Linux AS version 3 - i386, ia64, ppc, s390, s390x, x86_64 Red Hat Desktop version 3 - i386, x86_64 Red Hat Enterprise Linux ES version 3 - i386, ia64, x86_64 Red Hat Enterprise Linux WS version 3 - i386, ia64, x86_64 Red Hat Enterprise Linux AS version 4 - i386, ia64, ppc, s390, s390x, x86_64 Red Hat Enterprise Linux Desktop version 4 - i386, x86_64 Red Hat Enterprise Linux ES version 4 - i386, ia64, x86_64 Red Hat Enterprise Linux WS version 4 - i386, ia64, x86_64 3. Problem description: The ncompress package contains file compression and decompression utilities, which are compatible with the original UNIX compress utility (.Z file extensions). Tavis Ormandy of the Google Security Team discovered a lack of bounds checking in ncompress. An attacker could create a carefully crafted file that could execute arbitrary code if uncompressed by a victim. (CVE-2006-1168) In addition, two bugs that affected Red Hat Enterprise Linux 4 ncompress packages were fixed: * The display statistics and compression results in verbose mode were not shown when operating on zero length files. * An attempt to compress zero length files resulted in an unexpected return code. Users of ncompress are advised to upgrade to these updated packages, which contain backported patches to correct these issues. 4. Solution: Before applying this update, make sure all previously released errata relevant to your system have been applied. This update is available via Red Hat Network. To use Red Hat Network, launch the Red Hat Update Agent with the following command: up2date This will start an interactive process that will result in the appropriate RPMs being upgraded on your system. 5. Bug IDs fixed (http://bugzilla.redhat.com/): 189215 - ncompress does not display statistics when compressing 0 length files 189216 - Bad return code when compressing 0 length files 201335 - CVE-2006-1168 Possibility to underflow a .bss buffer with attacker controlled data 6. RPMs required: Red Hat Enterprise Linux AS (Advanced Server) version 2.1: SRPMS: ftp://updates.redhat.com/enterprise/2.1AS/en/os/SRPMS/ncompress-4.2.4-38.rhel2.src.rpm eb6007ec73c99cfae684316e03a60b06 ncompress-4.2.4-38.rhel2.src.rpm i386: 0c44556d4004264fc56dfc4d7881990e ncompress-4.2.4-38.rhel2.i386.rpm ia64: ad1f16ed8f253b3d952a06e97bb4cb24 ncompress-4.2.4-38.rhel2.ia64.rpm Red Hat Linux Advanced Workstation 2.1: SRPMS: ftp://updates.redhat.com/enterprise/2.1AW/en/os/SRPMS/ncompress-4.2.4-38.rhel2.src.rpm eb6007ec73c99cfae684316e03a60b06 ncompress-4.2.4-38.rhel2.src.rpm ia64: ad1f16ed8f253b3d952a06e97bb4cb24 ncompress-4.2.4-38.rhel2.ia64.rpm Red Hat Enterprise Linux ES version 2.1: SRPMS: ftp://updates.redhat.com/enterprise/2.1ES/en/os/SRPMS/ncompress-4.2.4-38.rhel2.src.rpm eb6007ec73c99cfae684316e03a60b06 ncompress-4.2.4-38.rhel2.src.rpm i386: 0c44556d4004264fc56dfc4d7881990e ncompress-4.2.4-38.rhel2.i386.rpm Red Hat Enterprise Linux WS version 2.1: SRPMS: ftp://updates.redhat.com/enterprise/2.1WS/en/os/SRPMS/ncompress-4.2.4-38.rhel2.src.rpm eb6007ec73c99cfae684316e03a60b06 ncompress-4.2.4-38.rhel2.src.rpm i386: 0c44556d4004264fc56dfc4d7881990e ncompress-4.2.4-38.rhel2.i386.rpm Red Hat Enterprise Linux AS version 3: SRPMS: ftp://updates.redhat.com/enterprise/3AS/en/os/SRPMS/ncompress-4.2.4-39.rhel3.src.rpm 5470ff0372b3eb8fa6da847646f0a3dc ncompress-4.2.4-39.rhel3.src.rpm i386: bfd9c50245674413a25f6acd53bef47b ncompress-4.2.4-39.rhel3.i386.rpm 00c0c000396c42c052e0378ce219292b ncompress-debuginfo-4.2.4-39.rhel3.i386.rpm ia64: 6e32698aab73a2cfa37198d52dbd8279 ncompress-4.2.4-39.rhel3.ia64.rpm 19b12f415a0c3a07520b753b56bccf64 ncompress-debuginfo-4.2.4-39.rhel3.ia64.rpm ppc: 16e51ba793dfaaa9c125ef97030c8202 ncompress-4.2.4-39.rhel3.ppc.rpm 3305aa2ccaafa6b2b839a6f14a083907 ncompress-debuginfo-4.2.4-39.rhel3.ppc.rpm s390: 694a79848689bf49165ffa70dbd48bfa ncompress-4.2.4-39.rhel3.s390.rpm a304fa968d23454da477ee87aac33b70 ncompress-debuginfo-4.2.4-39.rhel3.s390.rpm s390x: 7882f3e72361f310507d991cb19a2b25 ncompress-4.2.4-39.rhel3.s390x.rpm f38fff0242d9316bb9f5b0ad091aedb4 ncompress-debuginfo-4.2.4-39.rhel3.s390x.rpm x86_64: 767f6aea14635db8913d2778e57627c1 ncompress-4.2.4-39.rhel3.x86_64.rpm da1af0e9c76e10c3d82544ff6d71069f ncompress-debuginfo-4.2.4-39.rhel3.x86_64.rpm Red Hat Desktop version 3: SRPMS: ftp://updates.redhat.com/enterprise/3desktop/en/os/SRPMS/ncompress-4.2.4-39.rhel3.src.rpm 5470ff0372b3eb8fa6da847646f0a3dc ncompress-4.2.4-39.rhel3.src.rpm i386: bfd9c50245674413a25f6acd53bef47b ncompress-4.2.4-39.rhel3.i386.rpm 00c0c000396c42c052e0378ce219292b ncompress-debuginfo-4.2.4-39.rhel3.i386.rpm x86_64: 767f6aea14635db8913d2778e57627c1 ncompress-4.2.4-39.rhel3.x86_64.rpm da1af0e9c76e10c3d82544ff6d71069f ncompress-debuginfo-4.2.4-39.rhel3.x86_64.rpm Red Hat Enterprise Linux ES version 3: SRPMS: ftp://updates.redhat.com/enterprise/3ES/en/os/SRPMS/ncompress-4.2.4-39.rhel3.src.rpm 5470ff0372b3eb8fa6da847646f0a3dc ncompress-4.2.4-39.rhel3.src.rpm i386: bfd9c50245674413a25f6acd53bef47b ncompress-4.2.4-39.rhel3.i386.rpm 00c0c000396c42c052e0378ce219292b ncompress-debuginfo-4.2.4-39.rhel3.i386.rpm ia64: 6e32698aab73a2cfa37198d52dbd8279 ncompress-4.2.4-39.rhel3.ia64.rpm 19b12f415a0c3a07520b753b56bccf64 ncompress-debuginfo-4.2.4-39.rhel3.ia64.rpm x86_64: 767f6aea14635db8913d2778e57627c1 ncompress-4.2.4-39.rhel3.x86_64.rpm da1af0e9c76e10c3d82544ff6d71069f ncompress-debuginfo-4.2.4-39.rhel3.x86_64.rpm Red Hat Enterprise Linux WS version 3: SRPMS: ftp://updates.redhat.com/enterprise/3WS/en/os/SRPMS/ncompress-4.2.4-39.rhel3.src.rpm 5470ff0372b3eb8fa6da847646f0a3dc ncompress-4.2.4-39.rhel3.src.rpm i386: bfd9c50245674413a25f6acd53bef47b ncompress-4.2.4-39.rhel3.i386.rpm 00c0c000396c42c052e0378ce219292b ncompress-debuginfo-4.2.4-39.rhel3.i386.rpm ia64: 6e32698aab73a2cfa37198d52dbd8279 ncompress-4.2.4-39.rhel3.ia64.rpm 19b12f415a0c3a07520b753b56bccf64 ncompress-debuginfo-4.2.4-39.rhel3.ia64.rpm x86_64: 767f6aea14635db8913d2778e57627c1 ncompress-4.2.4-39.rhel3.x86_64.rpm da1af0e9c76e10c3d82544ff6d71069f ncompress-debuginfo-4.2.4-39.rhel3.x86_64.rpm Red Hat Enterprise Linux AS version 4: SRPMS: ftp://updates.redhat.com/enterprise/4AS/en/os/SRPMS/ncompress-4.2.4-43.rhel4.src.rpm a99ca43a68463aded1fa28d0184288ae ncompress-4.2.4-43.rhel4.src.rpm i386: 93e2cece010a5f63060d895bfbc50349 ncompress-4.2.4-43.rhel4.i386.rpm 5d7637bf393d30cfef3b4262d19ec3aa ncompress-debuginfo-4.2.4-43.rhel4.i386.rpm ia64: 35239dd95950b6622ace488bcbe9e50b ncompress-4.2.4-43.rhel4.ia64.rpm 0be7f133a43ce77859cf86635135a86e ncompress-debuginfo-4.2.4-43.rhel4.ia64.rpm ppc: e41b5bacce5d1a5115d3013b32d2f25b ncompress-4.2.4-43.rhel4.ppc.rpm 9134e58e31b06abf6bde5fadeb1c03e7 ncompress-debuginfo-4.2.4-43.rhel4.ppc.rpm s390: 37d7fffa2e8a8e24421b2e26e4f3843c ncompress-4.2.4-43.rhel4.s390.rpm dfce5613e4d2d3edcae690a1cf4155e3 ncompress-debuginfo-4.2.4-43.rhel4.s390.rpm s390x: 9f0f16b32fd0bdd5c4cea2bcfc3ad85e ncompress-4.2.4-43.rhel4.s390x.rpm 54331af9e2989a8fa82410c3dea3e66c ncompress-debuginfo-4.2.4-43.rhel4.s390x.rpm x86_64: b997549a109c544417f861c509ce2466 ncompress-4.2.4-43.rhel4.x86_64.rpm e35693ccd5bd2b496068670ef8735702 ncompress-debuginfo-4.2.4-43.rhel4.x86_64.rpm Red Hat Enterprise Linux Desktop version 4: SRPMS: ftp://updates.redhat.com/enterprise/4Desktop/en/os/SRPMS/ncompress-4.2.4-43.rhel4.src.rpm a99ca43a68463aded1fa28d0184288ae ncompress-4.2.4-43.rhel4.src.rpm i386: 93e2cece010a5f63060d895bfbc50349 ncompress-4.2.4-43.rhel4.i386.rpm 5d7637bf393d30cfef3b4262d19ec3aa ncompress-debuginfo-4.2.4-43.rhel4.i386.rpm x86_64: b997549a109c544417f861c509ce2466 ncompress-4.2.4-43.rhel4.x86_64.rpm e35693ccd5bd2b496068670ef8735702 ncompress-debuginfo-4.2.4-43.rhel4.x86_64.rpm Red Hat Enterprise Linux ES version 4: SRPMS: ftp://updates.redhat.com/enterprise/4ES/en/os/SRPMS/ncompress-4.2.4-43.rhel4.src.rpm a99ca43a68463aded1fa28d0184288ae ncompress-4.2.4-43.rhel4.src.rpm i386: 93e2cece010a5f63060d895bfbc50349 ncompress-4.2.4-43.rhel4.i386.rpm 5d7637bf393d30cfef3b4262d19ec3aa ncompress-debuginfo-4.2.4-43.rhel4.i386.rpm ia64: 35239dd95950b6622ace488bcbe9e50b ncompress-4.2.4-43.rhel4.ia64.rpm 0be7f133a43ce77859cf86635135a86e ncompress-debuginfo-4.2.4-43.rhel4.ia64.rpm x86_64: b997549a109c544417f861c509ce2466 ncompress-4.2.4-43.rhel4.x86_64.rpm e35693ccd5bd2b496068670ef8735702 ncompress-debuginfo-4.2.4-43.rhel4.x86_64.rpm Red Hat Enterprise Linux WS version 4: SRPMS: ftp://updates.redhat.com/enterprise/4WS/en/os/SRPMS/ncompress-4.2.4-43.rhel4.src.rpm a99ca43a68463aded1fa28d0184288ae ncompress-4.2.4-43.rhel4.src.rpm i386: 93e2cece010a5f63060d895bfbc50349 ncompress-4.2.4-43.rhel4.i386.rpm 5d7637bf393d30cfef3b4262d19ec3aa ncompress-debuginfo-4.2.4-43.rhel4.i386.rpm ia64: 35239dd95950b6622ace488bcbe9e50b ncompress-4.2.4-43.rhel4.ia64.rpm 0be7f133a43ce77859cf86635135a86e ncompress-debuginfo-4.2.4-43.rhel4.ia64.rpm x86_64: b997549a109c544417f861c509ce2466 ncompress-4.2.4-43.rhel4.x86_64.rpm e35693ccd5bd2b496068670ef8735702 ncompress-debuginfo-4.2.4-43.rhel4.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://www.redhat.com/security/team/key/#package 7. References: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-1168 http://www.redhat.com/security/updates/classification/#low 8. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://www.redhat.com/security/team/contact/ Copyright 2006 Red Hat, Inc. - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.1 (GNU/Linux) iD8DBQFFBuTBXlSAg2UNWIIRAgaMAJ4zCZOsNV8s+rUwAVCe7Wfg6hyI0ACeKIY1 Mh0Lrsz4T9JQ1550yP8un9Q= =NYhW - -----END PGP SIGNATURE----- - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. 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On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQCVAwUBRQdu0ih9+71yA2DNAQLqWQP/X96SZRqibjzPuCTIJlQwXLy60qYbqX6h DuCERAhAQz2SmTEILmspMKCel5YuwumzNKVD+FPHZModbAWQ4SCm58PdLA4jU5f2 RdceluRRlr8RUW43godkE2XTVkA73F/TThhN5368jjmM6OlB47DS9BWjLpmfVCC9 X7WshAJNFOU= =Cw1G -----END PGP SIGNATURE-----