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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2005.0663 -- RHSA-2005:529-01 Important: kernel security update 26 August 2005 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: kernel Publisher: Red Hat Operating System: Red Hat Enterprise Linux AS/ES/WS 2.1 Impact: Denial of Service Increased Privileges Provide Misleading Information Access: Remote/Unauthenticated Existing Account CVE Names: CAN-2005-1263 CAN-2005-0749 CAN-2005-0504 CAN-2004-1056 Ref: ESB-2005.0434 Original Bulletin: https://rhn.redhat.com/errata/RHSA-2005-529.html - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 - - --------------------------------------------------------------------- Red Hat Security Advisory Synopsis: Important: kernel security update Advisory ID: RHSA-2005:529-01 Advisory URL: https://rhn.redhat.com/errata/RHSA-2005-529.html Issue date: 2005-08-25 Updated on: 2005-08-25 Product: Red Hat Enterprise Linux CVE Names: CAN-2005-0504 CAN-2005-0749 CAN-2005-1263 CAN-2004-1056 - - --------------------------------------------------------------------- 1. Summary: Updated kernel packages that fix a number of security issues as well as other bugs are now available for Red Hat Enterprise Linux 2.1 (32 bit architectures) 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 (Advanced Server) version 2.1 - i386 Red Hat Enterprise Linux ES version 2.1 - i386 Red Hat Enterprise Linux WS version 2.1 - i386 3. Problem description: The Linux kernel handles the basic functions of the operating system. This is a kernel maintenance update to Red Hat Enterprise Linux 2.1. The following security issues were corrected: A flaw between execve() syscall handling and core dumping of ELF-format executables allowed local unprivileged users to cause a denial of service (system crash) or possibly gain privileges. The Common Vulnerabilities and Exposures project has assigned the name CAN-2005-1263 to this issue. A flaw when freeing a pointer in load_elf_library was discovered. A local user could potentially use this flaw to cause a denial of service (crash). (CAN-2005-0749) The Direct Rendering Manager (DRM) driver did not properly check the DMA lock, which could allow remote attackers or local users to cause a denial of service (X Server crash) or possibly modify the video output. (CAN-2004-1056) A flaw in the moxa serial driver could allow a local user to perform privileged operations such as replacing the firmware. (CAN-2005-0504) The following bug fixes were also made: - - - Fix a race condition that can cause a panic in __get_lease() - - - Fix a race condition that can cause a panic when reading /proc/mdstat - - - Fix incorrect ide accounting - - - Prevent non-root users from reloading moxa driver firmware - - - Fix a null-pointer-dereference bug in rpciod - - - Fix legacy-usb handoff for certain IBM platforms - - - Fix a bug that caused busy inodes after unmount - - - Provide an additional fix for a memory leak in scsi_scan_single. - - - Fix a potential kswapd/dquot deadlock. - - - Fix a potential local DoS in shmemfs. - - - Fix a random poolsize vulnerability. Red Hat Enterprise Linux 2.1 users are advised to upgrade their kernels to the packages associated with their machine 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/): 127105 - RHEL 2.1: x445 Legacy USB support workaround needed 138517 - Memory Leak in AS 2.1 and 3.0 kernels 139775 - Filesystem quota GFP_KERNEL deadlock kswapd on dqio_sem. 144389 - CAN-2004-1056 insufficient locking checks in DRM code 144534 - random poolsize sysctl handler integer overflow 146103 - CAN-2005-0504 moxa CAP_SYS_RAWIO missing 152412 - CAN-2005-0749 load_elf_library possible DoS 156636 - [IT 54907] System oopsing in __get_lease() 157452 - CAN-2005-1263 Linux kernel ELF core dump privilege elevation 6. RPMs required: Red Hat Enterprise Linux AS (Advanced Server) version 2.1: SRPMS: ftp://updates.redhat.com/enterprise/2.1AS/en/os/SRPMS/kernel-2.4.9-e.65.src.rpm 75b21788376ac66ca843550c609e7b2f kernel-2.4.9-e.65.src.rpm i386: 0115ce5492ec4690d964445d2d9d5a28 kernel-2.4.9-e.65.athlon.rpm 9177fbe85508b0871b351084b4cf2cff kernel-2.4.9-e.65.i686.rpm dbf1e8c201a371fe826c1a702790901b kernel-BOOT-2.4.9-e.65.i386.rpm 0891cd9a3a384918658ed9dd39c957f5 kernel-debug-2.4.9-e.65.i686.rpm d2c0e5ba807aa9ea06100def9e8a6d63 kernel-doc-2.4.9-e.65.i386.rpm 0bbcb37e9f86b979d5befa0088dc94ca kernel-enterprise-2.4.9-e.65.i686.rpm 183e048e76fe3a621bcc1ae58bad4ab7 kernel-headers-2.4.9-e.65.i386.rpm 7681a9e9032ca8428d91de93de8acac2 kernel-smp-2.4.9-e.65.athlon.rpm 93cf8bdce245676880fb5f69bd679a77 kernel-smp-2.4.9-e.65.i686.rpm c29148136ede778664b6ce6400a3e48a kernel-source-2.4.9-e.65.i386.rpm 595da28faf3f8de4e830479d42671f50 kernel-summit-2.4.9-e.65.i686.rpm Red Hat Enterprise Linux ES version 2.1: SRPMS: ftp://updates.redhat.com/enterprise/2.1ES/en/os/SRPMS/kernel-2.4.9-e.65.src.rpm 75b21788376ac66ca843550c609e7b2f kernel-2.4.9-e.65.src.rpm i386: 0115ce5492ec4690d964445d2d9d5a28 kernel-2.4.9-e.65.athlon.rpm 9177fbe85508b0871b351084b4cf2cff kernel-2.4.9-e.65.i686.rpm dbf1e8c201a371fe826c1a702790901b kernel-BOOT-2.4.9-e.65.i386.rpm 0891cd9a3a384918658ed9dd39c957f5 kernel-debug-2.4.9-e.65.i686.rpm d2c0e5ba807aa9ea06100def9e8a6d63 kernel-doc-2.4.9-e.65.i386.rpm 183e048e76fe3a621bcc1ae58bad4ab7 kernel-headers-2.4.9-e.65.i386.rpm 7681a9e9032ca8428d91de93de8acac2 kernel-smp-2.4.9-e.65.athlon.rpm 93cf8bdce245676880fb5f69bd679a77 kernel-smp-2.4.9-e.65.i686.rpm c29148136ede778664b6ce6400a3e48a kernel-source-2.4.9-e.65.i386.rpm Red Hat Enterprise Linux WS version 2.1: SRPMS: ftp://updates.redhat.com/enterprise/2.1WS/en/os/SRPMS/kernel-2.4.9-e.65.src.rpm 75b21788376ac66ca843550c609e7b2f kernel-2.4.9-e.65.src.rpm i386: 0115ce5492ec4690d964445d2d9d5a28 kernel-2.4.9-e.65.athlon.rpm 9177fbe85508b0871b351084b4cf2cff kernel-2.4.9-e.65.i686.rpm dbf1e8c201a371fe826c1a702790901b kernel-BOOT-2.4.9-e.65.i386.rpm 0891cd9a3a384918658ed9dd39c957f5 kernel-debug-2.4.9-e.65.i686.rpm d2c0e5ba807aa9ea06100def9e8a6d63 kernel-doc-2.4.9-e.65.i386.rpm 0bbcb37e9f86b979d5befa0088dc94ca kernel-enterprise-2.4.9-e.65.i686.rpm 183e048e76fe3a621bcc1ae58bad4ab7 kernel-headers-2.4.9-e.65.i386.rpm 7681a9e9032ca8428d91de93de8acac2 kernel-smp-2.4.9-e.65.athlon.rpm 93cf8bdce245676880fb5f69bd679a77 kernel-smp-2.4.9-e.65.i686.rpm c29148136ede778664b6ce6400a3e48a kernel-source-2.4.9-e.65.i386.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=CAN-2005-0504 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0749 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-1263 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-1056 8. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://www.redhat.com/security/team/contact/ Copyright 2005 Red Hat, Inc. - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.1 (GNU/Linux) iD8DBQFDDchYXlSAg2UNWIIRApnVAJ9PzqTKOO2t+sfmxNSBYYH/kYRKKACglH1d umOlLr3pkqThHe+E4qnOzNY= =S5lR - -----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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Previous advisories and external security bulletins can be retrieved from: http://www.auscert.org.au/render.html?cid=1980 If you believe that your computer system has been compromised or attacked in any way, we encourage you to let us know by completing the secure National IT Incident Reporting Form at: http://www.auscert.org.au/render.html?it=3192 =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQCVAwUBQw6M7ih9+71yA2DNAQLF8QP+MF/nt4fRcxRBmEE10gpeccc/8FRrLWoY 3JlB1avVdFoHp9c6zdeAxRPyW6MVRs6d+XNWEnyMA2kSY1w6QzV++CpBiR22/dhk 6ioqYD9SMxfMDFEUyuRk0RQUeuuwii9e7OuSmNwH/mMu+LVV7CACg4aFZaSOlz4/ GorCt1n6Vo4= =hhS+ -----END PGP SIGNATURE-----