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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2008.1137 -- [RedHat] Important: kernel security and bug fix update 18 December 2008 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: kernel Publisher: Red Hat Operating System: Red Hat Linux 3 Impact: Increased Privileges Access Privileged Data Access Confidential Data Denial of Service Reduced Security Access: Remote/Unauthenticated CVE Names: CVE-2008-4210 CVE-2008-3525 CVE-2008-3275 CVE-2008-2812 CVE-2008-2136 CVE-2008-0598 CVE-2007-6063 Ref: ESB-2008.1018 ESB-2008.0953 ESB-2008.0829 ESB-2008.0776 ESB-2008.0646 Original Bulletin: https://rhn.redhat.com/errata/RHSA-2008-0973.html - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Important: kernel security and bug fix update Advisory ID: RHSA-2008:0973-03 Product: Red Hat Enterprise Linux Advisory URL: https://rhn.redhat.com/errata/RHSA-2008-0973.html Issue date: 2008-12-16 CVE Names: CVE-2008-4210 CVE-2008-3275 CVE-2008-0598 CVE-2008-2136 CVE-2008-2812 CVE-2007-6063 CVE-2008-3525 ===================================================================== 1. Summary: Updated kernel packages that resolve several security issues and fix various bugs are now available for Red Hat Enterprise Linux 3. This update 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 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 3. Description: The kernel packages contain the Linux kernel, the core of any Linux operating system. This update addresses the following security issues: * Tavis Ormandy discovered a deficiency in the Linux kernel 32-bit and 64-bit emulation. This could allow a local, unprivileged user to prepare and run a specially-crafted binary which would use this deficiency to leak uninitialized and potentially sensitive data. (CVE-2008-0598, Important) * a possible kernel memory leak was found in the Linux kernel Simple Internet Transition (SIT) INET6 implementation. This could allow a local, unprivileged user to cause a denial of service. (CVE-2008-2136, Important) * missing capability checks were found in the SBNI WAN driver which could allow a local user to bypass intended capability restrictions. (CVE-2008-3525, Important) * the do_truncate() and generic_file_splice_write() functions did not clear the setuid and setgid bits. This could allow a local, unprivileged user to obtain access to privileged information. (CVE-2008-4210, Important) * a buffer overflow flaw was found in Integrated Services Digital Network (ISDN) subsystem. A local, unprivileged user could use this flaw to cause a denial of service. (CVE-2007-6063, Moderate) * multiple NULL pointer dereferences were found in various Linux kernel network drivers. These drivers were missing checks for terminal validity, which could allow privilege escalation. (CVE-2008-2812, Moderate) * a deficiency was found in the Linux kernel virtual filesystem (VFS) implementation. This could allow a local, unprivileged user to attempt file creation within deleted directories, possibly causing a denial of service. (CVE-2008-3275, Moderate) This update also fixes the following bugs: * the incorrect kunmap function was used in nfs_xdr_readlinkres. kunmap() was used where kunmap_atomic() should have been. As a consequence, if an NFSv2 or NFSv3 server exported a volume containing a symlink which included a path equal to or longer than the local system's PATH_MAX, accessing the link caused a kernel oops. This has been corrected in this update. * mptctl_gettargetinfo did not check if pIoc3 was NULL before using it as a pointer. This caused a kernel panic in mptctl_gettargetinfo in some circumstances. A check has been added which prevents this. * lost tick compensation code in the timer interrupt routine triggered without apparent cause. When running as a fully-virtualized client, this spurious triggering caused the 64-bit version of Red Hat Enterprise Linux 3 to present highly inaccurate times. With this update the lost tick compensation code is turned off when the operating system is running as a fully-virtualized client under Xen or VMWare®. All Red Hat Enterprise Linux 3 users should install this updated kernel which addresses these vulnerabilities and fixes these bugs. 4. Solution: Before applying this update, make sure that all previously-released errata relevant to your system have been applied. This update is available via Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at http://kbase.redhat.com/faq/docs/DOC-11259 5. Bugs fixed (http://bugzilla.redhat.com/): 392101 - CVE-2007-6063 Linux Kernel isdn_net_setcfg buffer overflow 433938 - CVE-2008-0598 kernel: linux x86_64 ia32 emulation leaks uninitialized data 438758 - wrong kunmap call in nfs_xdr_readlinkres 446031 - CVE-2008-2136 kernel: sit memory leak 453419 - CVE-2008-2812 kernel: NULL ptr dereference in multiple network drivers due to missing checks in tty code 457858 - CVE-2008-3275 Linux kernel local filesystem DoS 460401 - CVE-2008-3525 kernel: missing capability checks in sbni_ioctl() 463661 - CVE-2008-4210 kernel: open() call allows setgid bit when user is not in new file's group 6. Package List: Red Hat Enterprise Linux AS version 3: Source: ftp://updates.redhat.com/enterprise/3AS/en/os/SRPMS/kernel-2.4.21-58.EL.src.rpm i386: kernel-2.4.21-58.EL.athlon.rpm kernel-2.4.21-58.EL.i686.rpm kernel-BOOT-2.4.21-58.EL.i386.rpm kernel-debuginfo-2.4.21-58.EL.athlon.rpm kernel-debuginfo-2.4.21-58.EL.i386.rpm kernel-debuginfo-2.4.21-58.EL.i686.rpm kernel-doc-2.4.21-58.EL.i386.rpm kernel-hugemem-2.4.21-58.EL.i686.rpm kernel-hugemem-unsupported-2.4.21-58.EL.i686.rpm kernel-smp-2.4.21-58.EL.athlon.rpm kernel-smp-2.4.21-58.EL.i686.rpm kernel-smp-unsupported-2.4.21-58.EL.athlon.rpm kernel-smp-unsupported-2.4.21-58.EL.i686.rpm kernel-source-2.4.21-58.EL.i386.rpm kernel-unsupported-2.4.21-58.EL.athlon.rpm kernel-unsupported-2.4.21-58.EL.i686.rpm ia64: kernel-2.4.21-58.EL.ia64.rpm kernel-debuginfo-2.4.21-58.EL.ia64.rpm kernel-doc-2.4.21-58.EL.ia64.rpm kernel-source-2.4.21-58.EL.ia64.rpm kernel-unsupported-2.4.21-58.EL.ia64.rpm ppc: kernel-2.4.21-58.EL.ppc64iseries.rpm kernel-2.4.21-58.EL.ppc64pseries.rpm kernel-debuginfo-2.4.21-58.EL.ppc64.rpm kernel-debuginfo-2.4.21-58.EL.ppc64iseries.rpm kernel-debuginfo-2.4.21-58.EL.ppc64pseries.rpm kernel-doc-2.4.21-58.EL.ppc64.rpm kernel-source-2.4.21-58.EL.ppc64.rpm kernel-unsupported-2.4.21-58.EL.ppc64iseries.rpm kernel-unsupported-2.4.21-58.EL.ppc64pseries.rpm s390: kernel-2.4.21-58.EL.s390.rpm kernel-debuginfo-2.4.21-58.EL.s390.rpm kernel-doc-2.4.21-58.EL.s390.rpm kernel-source-2.4.21-58.EL.s390.rpm kernel-unsupported-2.4.21-58.EL.s390.rpm s390x: kernel-2.4.21-58.EL.s390x.rpm kernel-debuginfo-2.4.21-58.EL.s390x.rpm kernel-doc-2.4.21-58.EL.s390x.rpm kernel-source-2.4.21-58.EL.s390x.rpm kernel-unsupported-2.4.21-58.EL.s390x.rpm x86_64: kernel-2.4.21-58.EL.ia32e.rpm kernel-2.4.21-58.EL.x86_64.rpm kernel-debuginfo-2.4.21-58.EL.ia32e.rpm kernel-debuginfo-2.4.21-58.EL.x86_64.rpm kernel-doc-2.4.21-58.EL.x86_64.rpm kernel-smp-2.4.21-58.EL.x86_64.rpm kernel-smp-unsupported-2.4.21-58.EL.x86_64.rpm kernel-source-2.4.21-58.EL.x86_64.rpm kernel-unsupported-2.4.21-58.EL.ia32e.rpm kernel-unsupported-2.4.21-58.EL.x86_64.rpm Red Hat Desktop version 3: Source: ftp://updates.redhat.com/enterprise/3desktop/en/os/SRPMS/kernel-2.4.21-58.EL.src.rpm i386: kernel-2.4.21-58.EL.athlon.rpm kernel-2.4.21-58.EL.i686.rpm kernel-BOOT-2.4.21-58.EL.i386.rpm kernel-debuginfo-2.4.21-58.EL.athlon.rpm kernel-debuginfo-2.4.21-58.EL.i386.rpm kernel-debuginfo-2.4.21-58.EL.i686.rpm kernel-doc-2.4.21-58.EL.i386.rpm kernel-hugemem-2.4.21-58.EL.i686.rpm kernel-hugemem-unsupported-2.4.21-58.EL.i686.rpm kernel-smp-2.4.21-58.EL.athlon.rpm kernel-smp-2.4.21-58.EL.i686.rpm kernel-smp-unsupported-2.4.21-58.EL.athlon.rpm kernel-smp-unsupported-2.4.21-58.EL.i686.rpm kernel-source-2.4.21-58.EL.i386.rpm kernel-unsupported-2.4.21-58.EL.athlon.rpm kernel-unsupported-2.4.21-58.EL.i686.rpm x86_64: kernel-2.4.21-58.EL.ia32e.rpm kernel-2.4.21-58.EL.x86_64.rpm kernel-debuginfo-2.4.21-58.EL.ia32e.rpm kernel-debuginfo-2.4.21-58.EL.x86_64.rpm kernel-doc-2.4.21-58.EL.x86_64.rpm kernel-smp-2.4.21-58.EL.x86_64.rpm kernel-smp-unsupported-2.4.21-58.EL.x86_64.rpm kernel-source-2.4.21-58.EL.x86_64.rpm kernel-unsupported-2.4.21-58.EL.ia32e.rpm kernel-unsupported-2.4.21-58.EL.x86_64.rpm Red Hat Enterprise Linux ES version 3: Source: ftp://updates.redhat.com/enterprise/3ES/en/os/SRPMS/kernel-2.4.21-58.EL.src.rpm i386: kernel-2.4.21-58.EL.athlon.rpm kernel-2.4.21-58.EL.i686.rpm kernel-BOOT-2.4.21-58.EL.i386.rpm kernel-debuginfo-2.4.21-58.EL.athlon.rpm kernel-debuginfo-2.4.21-58.EL.i386.rpm kernel-debuginfo-2.4.21-58.EL.i686.rpm kernel-doc-2.4.21-58.EL.i386.rpm kernel-hugemem-2.4.21-58.EL.i686.rpm kernel-hugemem-unsupported-2.4.21-58.EL.i686.rpm kernel-smp-2.4.21-58.EL.athlon.rpm kernel-smp-2.4.21-58.EL.i686.rpm kernel-smp-unsupported-2.4.21-58.EL.athlon.rpm kernel-smp-unsupported-2.4.21-58.EL.i686.rpm kernel-source-2.4.21-58.EL.i386.rpm kernel-unsupported-2.4.21-58.EL.athlon.rpm kernel-unsupported-2.4.21-58.EL.i686.rpm ia64: kernel-2.4.21-58.EL.ia64.rpm kernel-debuginfo-2.4.21-58.EL.ia64.rpm kernel-doc-2.4.21-58.EL.ia64.rpm kernel-source-2.4.21-58.EL.ia64.rpm kernel-unsupported-2.4.21-58.EL.ia64.rpm x86_64: kernel-2.4.21-58.EL.ia32e.rpm kernel-2.4.21-58.EL.x86_64.rpm kernel-debuginfo-2.4.21-58.EL.ia32e.rpm kernel-debuginfo-2.4.21-58.EL.x86_64.rpm kernel-doc-2.4.21-58.EL.x86_64.rpm kernel-smp-2.4.21-58.EL.x86_64.rpm kernel-smp-unsupported-2.4.21-58.EL.x86_64.rpm kernel-source-2.4.21-58.EL.x86_64.rpm kernel-unsupported-2.4.21-58.EL.ia32e.rpm kernel-unsupported-2.4.21-58.EL.x86_64.rpm Red Hat Enterprise Linux WS version 3: Source: ftp://updates.redhat.com/enterprise/3WS/en/os/SRPMS/kernel-2.4.21-58.EL.src.rpm i386: kernel-2.4.21-58.EL.athlon.rpm kernel-2.4.21-58.EL.i686.rpm kernel-BOOT-2.4.21-58.EL.i386.rpm kernel-debuginfo-2.4.21-58.EL.athlon.rpm kernel-debuginfo-2.4.21-58.EL.i386.rpm kernel-debuginfo-2.4.21-58.EL.i686.rpm kernel-doc-2.4.21-58.EL.i386.rpm kernel-hugemem-2.4.21-58.EL.i686.rpm kernel-hugemem-unsupported-2.4.21-58.EL.i686.rpm kernel-smp-2.4.21-58.EL.athlon.rpm kernel-smp-2.4.21-58.EL.i686.rpm kernel-smp-unsupported-2.4.21-58.EL.athlon.rpm kernel-smp-unsupported-2.4.21-58.EL.i686.rpm kernel-source-2.4.21-58.EL.i386.rpm kernel-unsupported-2.4.21-58.EL.athlon.rpm kernel-unsupported-2.4.21-58.EL.i686.rpm ia64: kernel-2.4.21-58.EL.ia64.rpm kernel-debuginfo-2.4.21-58.EL.ia64.rpm kernel-doc-2.4.21-58.EL.ia64.rpm kernel-source-2.4.21-58.EL.ia64.rpm kernel-unsupported-2.4.21-58.EL.ia64.rpm x86_64: kernel-2.4.21-58.EL.ia32e.rpm kernel-2.4.21-58.EL.x86_64.rpm kernel-debuginfo-2.4.21-58.EL.ia32e.rpm kernel-debuginfo-2.4.21-58.EL.x86_64.rpm kernel-doc-2.4.21-58.EL.x86_64.rpm kernel-smp-2.4.21-58.EL.x86_64.rpm kernel-smp-unsupported-2.4.21-58.EL.x86_64.rpm kernel-source-2.4.21-58.EL.x86_64.rpm kernel-unsupported-2.4.21-58.EL.ia32e.rpm kernel-unsupported-2.4.21-58.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-2008-4210 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-3275 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-0598 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-2136 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-2812 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-6063 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-3525 http://www.redhat.com/security/updates/classification/#important 8. Contact: The Red Hat security contact is <secalert@redhat.com>. 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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 iQCVAwUBSUmXrCh9+71yA2DNAQII1wQAm/03Pv1MJU9Y7W17ieEifwm6LmSCDTDN Hgf2SVgzPEcoewBxbzAz81TgxLL+0kKC4ZnYNfjRxmMmFBNSfe6jMeIqdF6ApeAR VUdV3TcVoJP9cL+eBc4PdxW1d18iosS1eRmz3aU+DkRXBiiVm1EfvyIi+/U1yCYM lxTgMndr2LE= =VZZp -----END PGP SIGNATURE-----