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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2006.0446 -- [RedHat] Important: kernel security update 10 July 2006 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: kernel Publisher: Red Hat Operating System: Red Hat Enterprise Linux Desktop 4 Red Hat Enterprise Linux AS/ES/WS 4 Impact: Root Compromise Denial of Service Access: Existing Account CVE Names: CVE-2006-2451 Ref: ESB-2006.0359 Original Bulletin: https://rhn.redhat.com/errata/RHSA-2006-0574.html - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 - - --------------------------------------------------------------------- Red Hat Security Advisory Synopsis: Important: kernel security update Advisory ID: RHSA-2006:0574-01 Advisory URL: https://rhn.redhat.com/errata/RHSA-2006-0574.html Issue date: 2006-07-07 Updated on: 2006-07-07 Product: Red Hat Enterprise Linux Keywords: nahant kernel update Obsoletes: RHSA-2006:0493 CVE Names: CVE-2006-2451 - - --------------------------------------------------------------------- 1. Summary: Updated kernel packages that fix a privilege escalation security issue in the Red Hat Enterprise Linux 4 kernel are now available. This security advisory has been rated as having important security impact by the Red Hat Security Response Team. 2. Relevant releases/architectures: Red Hat Enterprise Linux AS version 4 - i386, ia64, noarch, ppc, s390, s390x, x86_64 Red Hat Enterprise Linux Desktop version 4 - i386, noarch, x86_64 Red Hat Enterprise Linux ES version 4 - i386, ia64, noarch, x86_64 Red Hat Enterprise Linux WS version 4 - i386, ia64, noarch, x86_64 3. Problem description: The Linux kernel handles the basic functions of the operating system. During security research, Red Hat discovered a behavioral flaw in core dump handling. A local user could create a program that would cause a core file to be dumped into a directory they would not normally have permissions to write to. This could lead to a denial of service (disk consumption), or allow the local user to gain root privileges. (CVE-2006-2451) Prior to applying this update, users can remove the ability to escalate privileges using this flaw by configuring core files to dump to an absolute location. By default, core files are created in the working directory of the faulting application, but this can be overridden by specifying an absolute location for core files in /proc/sys/kernel/core_pattern. To avoid a potential denial of service, a separate partition for the core files should be used. All Red Hat Enterprise Linux 4 users are advised to upgrade their kernels to the packages associated with their machine architectures and configurations as listed in this erratum. 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/): 195902 - CVE-2006-2451 Possible privilege escalation through prctl() and suid_dumpable 6. RPMs required: Red Hat Enterprise Linux AS version 4: SRPMS: ftp://updates.redhat.com/enterprise/4AS/en/os/SRPMS/kernel-2.6.9-34.0.2.EL.src.rpm b1525f16ed6956a8e508c0fb8ab983f6 kernel-2.6.9-34.0.2.EL.src.rpm i386: 8ae13e9c973abf31bfcf95f52107e028 kernel-2.6.9-34.0.2.EL.i686.rpm 572a28ec4bd9f90b4d608ed4d6d886e2 kernel-debuginfo-2.6.9-34.0.2.EL.i686.rpm e79ce53f8235b8f4c305de45fe7cc116 kernel-devel-2.6.9-34.0.2.EL.i686.rpm e5209b44a1786c055847755313e6582c kernel-hugemem-2.6.9-34.0.2.EL.i686.rpm c500bdf3fc096c6fc191d47337f18e4a kernel-hugemem-devel-2.6.9-34.0.2.EL.i686.rpm e38524a2c5721357b021aca299061c54 kernel-smp-2.6.9-34.0.2.EL.i686.rpm fe13001e6d26b0fb8631e731a4c07afc kernel-smp-devel-2.6.9-34.0.2.EL.i686.rpm ia64: d7387284d83394d47ef155ce885a9368 kernel-2.6.9-34.0.2.EL.ia64.rpm 5cd0daf15a572456fbd2fc1e429fcf38 kernel-debuginfo-2.6.9-34.0.2.EL.ia64.rpm ca498a4793f4cffc96dc2028de32878a kernel-devel-2.6.9-34.0.2.EL.ia64.rpm f6ccc44046248a98886f29d8b91996ac kernel-largesmp-2.6.9-34.0.2.EL.ia64.rpm f13fcad7a4596198d0adaaa223812c5e kernel-largesmp-devel-2.6.9-34.0.2.EL.ia64.rpm noarch: dad6fe0fcb7dde0869cb10d08acc1852 kernel-doc-2.6.9-34.0.2.EL.noarch.rpm ppc: 406a55f4303640565cdbcbe2b8b66525 kernel-2.6.9-34.0.2.EL.ppc64.rpm b8239e08291a35fdc08daee5d63a25a1 kernel-2.6.9-34.0.2.EL.ppc64iseries.rpm e3b903880e23cd125dd1653411e379f2 kernel-debuginfo-2.6.9-34.0.2.EL.ppc64.rpm 1ea5cf42e62b8e885e7a5b4abf3a0ae0 kernel-debuginfo-2.6.9-34.0.2.EL.ppc64iseries.rpm 8af7a011ccc78e925c2504c97710d512 kernel-devel-2.6.9-34.0.2.EL.ppc64.rpm 24858a45553903726311f203f58ccf9f kernel-devel-2.6.9-34.0.2.EL.ppc64iseries.rpm a9291ff69f733152d1be0ac45178511f kernel-largesmp-2.6.9-34.0.2.EL.ppc64.rpm b8b522f09d34dbb8b5aed21df3e8f7a5 kernel-largesmp-devel-2.6.9-34.0.2.EL.ppc64.rpm s390: 6626d6fb1bb866151add37580963a1f4 kernel-2.6.9-34.0.2.EL.s390.rpm 9032b5befe7e8530ec09a140eb8f0a4a kernel-debuginfo-2.6.9-34.0.2.EL.s390.rpm fdaac14cebdac84b536de92d5d869f57 kernel-devel-2.6.9-34.0.2.EL.s390.rpm s390x: 7f1bed602022c395bd253ff693df448f kernel-2.6.9-34.0.2.EL.s390x.rpm 3dc8b5298948cf15f770565e39a76bc3 kernel-debuginfo-2.6.9-34.0.2.EL.s390x.rpm 7348ad74dd62ecd9d3f90d862ca20b4f kernel-devel-2.6.9-34.0.2.EL.s390x.rpm x86_64: 7ecb7f19c806cbeeae4017e773ca6b95 kernel-2.6.9-34.0.2.EL.x86_64.rpm c3715718755dd621ecbf136372ec86a9 kernel-debuginfo-2.6.9-34.0.2.EL.x86_64.rpm 3ee909ed41588242f981a9aa78ad926d kernel-devel-2.6.9-34.0.2.EL.x86_64.rpm 40af50e2dfdc81483c667ee80ddc8af5 kernel-largesmp-2.6.9-34.0.2.EL.x86_64.rpm 3063ef4954c21d5da1f5f5eb73bae069 kernel-largesmp-devel-2.6.9-34.0.2.EL.x86_64.rpm b5cebc56b5288571c83d16f881c3e189 kernel-smp-2.6.9-34.0.2.EL.x86_64.rpm 1dca7ae6c082dda381ca77b46b3bfaf4 kernel-smp-devel-2.6.9-34.0.2.EL.x86_64.rpm Red Hat Enterprise Linux Desktop version 4: SRPMS: ftp://updates.redhat.com/enterprise/4Desktop/en/os/SRPMS/kernel-2.6.9-34.0.2.EL.src.rpm b1525f16ed6956a8e508c0fb8ab983f6 kernel-2.6.9-34.0.2.EL.src.rpm i386: 8ae13e9c973abf31bfcf95f52107e028 kernel-2.6.9-34.0.2.EL.i686.rpm 572a28ec4bd9f90b4d608ed4d6d886e2 kernel-debuginfo-2.6.9-34.0.2.EL.i686.rpm e79ce53f8235b8f4c305de45fe7cc116 kernel-devel-2.6.9-34.0.2.EL.i686.rpm e5209b44a1786c055847755313e6582c kernel-hugemem-2.6.9-34.0.2.EL.i686.rpm c500bdf3fc096c6fc191d47337f18e4a kernel-hugemem-devel-2.6.9-34.0.2.EL.i686.rpm e38524a2c5721357b021aca299061c54 kernel-smp-2.6.9-34.0.2.EL.i686.rpm fe13001e6d26b0fb8631e731a4c07afc kernel-smp-devel-2.6.9-34.0.2.EL.i686.rpm noarch: dad6fe0fcb7dde0869cb10d08acc1852 kernel-doc-2.6.9-34.0.2.EL.noarch.rpm x86_64: 7ecb7f19c806cbeeae4017e773ca6b95 kernel-2.6.9-34.0.2.EL.x86_64.rpm c3715718755dd621ecbf136372ec86a9 kernel-debuginfo-2.6.9-34.0.2.EL.x86_64.rpm 3ee909ed41588242f981a9aa78ad926d kernel-devel-2.6.9-34.0.2.EL.x86_64.rpm 40af50e2dfdc81483c667ee80ddc8af5 kernel-largesmp-2.6.9-34.0.2.EL.x86_64.rpm 3063ef4954c21d5da1f5f5eb73bae069 kernel-largesmp-devel-2.6.9-34.0.2.EL.x86_64.rpm b5cebc56b5288571c83d16f881c3e189 kernel-smp-2.6.9-34.0.2.EL.x86_64.rpm 1dca7ae6c082dda381ca77b46b3bfaf4 kernel-smp-devel-2.6.9-34.0.2.EL.x86_64.rpm Red Hat Enterprise Linux ES version 4: SRPMS: ftp://updates.redhat.com/enterprise/4ES/en/os/SRPMS/kernel-2.6.9-34.0.2.EL.src.rpm b1525f16ed6956a8e508c0fb8ab983f6 kernel-2.6.9-34.0.2.EL.src.rpm i386: 8ae13e9c973abf31bfcf95f52107e028 kernel-2.6.9-34.0.2.EL.i686.rpm 572a28ec4bd9f90b4d608ed4d6d886e2 kernel-debuginfo-2.6.9-34.0.2.EL.i686.rpm e79ce53f8235b8f4c305de45fe7cc116 kernel-devel-2.6.9-34.0.2.EL.i686.rpm e5209b44a1786c055847755313e6582c kernel-hugemem-2.6.9-34.0.2.EL.i686.rpm c500bdf3fc096c6fc191d47337f18e4a kernel-hugemem-devel-2.6.9-34.0.2.EL.i686.rpm e38524a2c5721357b021aca299061c54 kernel-smp-2.6.9-34.0.2.EL.i686.rpm fe13001e6d26b0fb8631e731a4c07afc kernel-smp-devel-2.6.9-34.0.2.EL.i686.rpm ia64: d7387284d83394d47ef155ce885a9368 kernel-2.6.9-34.0.2.EL.ia64.rpm 5cd0daf15a572456fbd2fc1e429fcf38 kernel-debuginfo-2.6.9-34.0.2.EL.ia64.rpm ca498a4793f4cffc96dc2028de32878a kernel-devel-2.6.9-34.0.2.EL.ia64.rpm f6ccc44046248a98886f29d8b91996ac kernel-largesmp-2.6.9-34.0.2.EL.ia64.rpm f13fcad7a4596198d0adaaa223812c5e kernel-largesmp-devel-2.6.9-34.0.2.EL.ia64.rpm noarch: dad6fe0fcb7dde0869cb10d08acc1852 kernel-doc-2.6.9-34.0.2.EL.noarch.rpm x86_64: 7ecb7f19c806cbeeae4017e773ca6b95 kernel-2.6.9-34.0.2.EL.x86_64.rpm c3715718755dd621ecbf136372ec86a9 kernel-debuginfo-2.6.9-34.0.2.EL.x86_64.rpm 3ee909ed41588242f981a9aa78ad926d kernel-devel-2.6.9-34.0.2.EL.x86_64.rpm 40af50e2dfdc81483c667ee80ddc8af5 kernel-largesmp-2.6.9-34.0.2.EL.x86_64.rpm 3063ef4954c21d5da1f5f5eb73bae069 kernel-largesmp-devel-2.6.9-34.0.2.EL.x86_64.rpm b5cebc56b5288571c83d16f881c3e189 kernel-smp-2.6.9-34.0.2.EL.x86_64.rpm 1dca7ae6c082dda381ca77b46b3bfaf4 kernel-smp-devel-2.6.9-34.0.2.EL.x86_64.rpm Red Hat Enterprise Linux WS version 4: SRPMS: ftp://updates.redhat.com/enterprise/4WS/en/os/SRPMS/kernel-2.6.9-34.0.2.EL.src.rpm b1525f16ed6956a8e508c0fb8ab983f6 kernel-2.6.9-34.0.2.EL.src.rpm i386: 8ae13e9c973abf31bfcf95f52107e028 kernel-2.6.9-34.0.2.EL.i686.rpm 572a28ec4bd9f90b4d608ed4d6d886e2 kernel-debuginfo-2.6.9-34.0.2.EL.i686.rpm e79ce53f8235b8f4c305de45fe7cc116 kernel-devel-2.6.9-34.0.2.EL.i686.rpm e5209b44a1786c055847755313e6582c kernel-hugemem-2.6.9-34.0.2.EL.i686.rpm c500bdf3fc096c6fc191d47337f18e4a kernel-hugemem-devel-2.6.9-34.0.2.EL.i686.rpm e38524a2c5721357b021aca299061c54 kernel-smp-2.6.9-34.0.2.EL.i686.rpm fe13001e6d26b0fb8631e731a4c07afc kernel-smp-devel-2.6.9-34.0.2.EL.i686.rpm ia64: d7387284d83394d47ef155ce885a9368 kernel-2.6.9-34.0.2.EL.ia64.rpm 5cd0daf15a572456fbd2fc1e429fcf38 kernel-debuginfo-2.6.9-34.0.2.EL.ia64.rpm ca498a4793f4cffc96dc2028de32878a kernel-devel-2.6.9-34.0.2.EL.ia64.rpm f6ccc44046248a98886f29d8b91996ac kernel-largesmp-2.6.9-34.0.2.EL.ia64.rpm f13fcad7a4596198d0adaaa223812c5e kernel-largesmp-devel-2.6.9-34.0.2.EL.ia64.rpm noarch: dad6fe0fcb7dde0869cb10d08acc1852 kernel-doc-2.6.9-34.0.2.EL.noarch.rpm x86_64: 7ecb7f19c806cbeeae4017e773ca6b95 kernel-2.6.9-34.0.2.EL.x86_64.rpm c3715718755dd621ecbf136372ec86a9 kernel-debuginfo-2.6.9-34.0.2.EL.x86_64.rpm 3ee909ed41588242f981a9aa78ad926d kernel-devel-2.6.9-34.0.2.EL.x86_64.rpm 40af50e2dfdc81483c667ee80ddc8af5 kernel-largesmp-2.6.9-34.0.2.EL.x86_64.rpm 3063ef4954c21d5da1f5f5eb73bae069 kernel-largesmp-devel-2.6.9-34.0.2.EL.x86_64.rpm b5cebc56b5288571c83d16f881c3e189 kernel-smp-2.6.9-34.0.2.EL.x86_64.rpm 1dca7ae6c082dda381ca77b46b3bfaf4 kernel-smp-devel-2.6.9-34.0.2.EL.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-2006-2451 http://kbase.redhat.com/faq/FAQ_52_2890.shtm http://www.redhat.com/security/updates/classification/#important 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) iD8DBQFErmfcXlSAg2UNWIIRAm+ZAKCEe4lEQrIaeB0Hgb6uNhF9Vcp+SwCcD3Hp AbjlWbk9FG2/bc6uLJjC68E= =sHi4 - -----END PGP SIGNATURE----- - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. 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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 iQCVAwUBRLGm+Ch9+71yA2DNAQI2SgP/Sr9R8wmabDoFuCqu7YujXYmENBN5BS3P LCI97+QFedpYsjksZmvmSRzYVql0gre+vQiiEe0WS0AVIwh9g+b1J4VQlaYgWJvF vI0sM/VWzd/af6eGSP6KVf16SBwryMv1P0XRQ2XSxiO/rTzYiiGkYG/8PsIfXJAa Y37IPoHvKrk= =zFyb -----END PGP SIGNATURE-----