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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2015.1572 Important: kernel security and bug fix update 17 June 2015 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: kernel Publisher: Red Hat Operating System: Red Hat Enterprise Linux Server 5 Impact/Access: Root Compromise -- Existing Account Denial of Service -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2015-1805 Reference: ESB-2015.1497 ESB-2015.1440 Original Bulletin: https://rhn.redhat.com/errata/RHSA-2015-1120.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-2015:1120-01 Product: Red Hat Enterprise Linux Advisory URL: https://rhn.redhat.com/errata/RHSA-2015-1120.html Issue date: 2015-06-16 CVE Names: CVE-2015-1805 ===================================================================== 1. Summary: Updated kernel packages that fix one security issue and one bug are now available for Red Hat Enterprise Linux 5.9 Advanced Update Support. Red Hat Product Security has rated this update as having Important security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section. 2. Relevant releases/architectures: Red Hat Enterprise Linux AUS (v. 5.9 server) - i386, ia64, noarch, ppc, s390x, x86_64 3. Description: The kernel packages contain the Linux kernel, the core of any Linux operating system. * It was found that the Linux kernel's implementation of vectored pipe read and write functionality did not take into account the I/O vectors that were already processed when retrying after a failed atomic access operation, potentially resulting in memory corruption due to an I/O vector array overrun. A local, unprivileged user could use this flaw to crash the system or, potentially, escalate their privileges on the system. (CVE-2015-1805, Important) The security impact of this issue was discovered by Red Hat. This update also fixes the following bug: * Previously, the signal delivery paths did not clear the TS_USEDFPU flag, which could confuse the switch_to() function and lead to floating-point unit (FPU) corruption. With this update, TS_USEDFPU is cleared as expected, and FPU is no longer under threat of corruption. (BZ#1214239) All kernel users are advised to upgrade to these updated packages, which contain backported patches to correct these issues. The system must be rebooted for this update to take effect. 4. Solution: Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258 5. Bugs fixed (https://bugzilla.redhat.com/): 1202855 - CVE-2015-1805 kernel: pipe: iovec overrun leading to memory corruption 6. Package List: Red Hat Enterprise Linux AUS (v. 5.9 server): Source: kernel-2.6.18-348.31.2.el5.src.rpm i386: kernel-2.6.18-348.31.2.el5.i686.rpm kernel-PAE-2.6.18-348.31.2.el5.i686.rpm kernel-PAE-debuginfo-2.6.18-348.31.2.el5.i686.rpm kernel-PAE-devel-2.6.18-348.31.2.el5.i686.rpm kernel-debug-2.6.18-348.31.2.el5.i686.rpm kernel-debug-debuginfo-2.6.18-348.31.2.el5.i686.rpm kernel-debug-devel-2.6.18-348.31.2.el5.i686.rpm kernel-debuginfo-2.6.18-348.31.2.el5.i686.rpm kernel-debuginfo-common-2.6.18-348.31.2.el5.i686.rpm kernel-devel-2.6.18-348.31.2.el5.i686.rpm kernel-headers-2.6.18-348.31.2.el5.i386.rpm kernel-xen-2.6.18-348.31.2.el5.i686.rpm kernel-xen-debuginfo-2.6.18-348.31.2.el5.i686.rpm kernel-xen-devel-2.6.18-348.31.2.el5.i686.rpm ia64: kernel-2.6.18-348.31.2.el5.ia64.rpm kernel-debug-2.6.18-348.31.2.el5.ia64.rpm kernel-debug-debuginfo-2.6.18-348.31.2.el5.ia64.rpm kernel-debug-devel-2.6.18-348.31.2.el5.ia64.rpm kernel-debuginfo-2.6.18-348.31.2.el5.ia64.rpm kernel-debuginfo-common-2.6.18-348.31.2.el5.ia64.rpm kernel-devel-2.6.18-348.31.2.el5.ia64.rpm kernel-headers-2.6.18-348.31.2.el5.ia64.rpm kernel-xen-2.6.18-348.31.2.el5.ia64.rpm kernel-xen-debuginfo-2.6.18-348.31.2.el5.ia64.rpm kernel-xen-devel-2.6.18-348.31.2.el5.ia64.rpm noarch: kernel-doc-2.6.18-348.31.2.el5.noarch.rpm ppc: kernel-2.6.18-348.31.2.el5.ppc64.rpm kernel-debug-2.6.18-348.31.2.el5.ppc64.rpm kernel-debug-debuginfo-2.6.18-348.31.2.el5.ppc64.rpm kernel-debug-devel-2.6.18-348.31.2.el5.ppc64.rpm kernel-debuginfo-2.6.18-348.31.2.el5.ppc64.rpm kernel-debuginfo-common-2.6.18-348.31.2.el5.ppc64.rpm kernel-devel-2.6.18-348.31.2.el5.ppc64.rpm kernel-headers-2.6.18-348.31.2.el5.ppc.rpm kernel-headers-2.6.18-348.31.2.el5.ppc64.rpm kernel-kdump-2.6.18-348.31.2.el5.ppc64.rpm kernel-kdump-debuginfo-2.6.18-348.31.2.el5.ppc64.rpm kernel-kdump-devel-2.6.18-348.31.2.el5.ppc64.rpm s390x: kernel-2.6.18-348.31.2.el5.s390x.rpm kernel-debug-2.6.18-348.31.2.el5.s390x.rpm kernel-debug-debuginfo-2.6.18-348.31.2.el5.s390x.rpm kernel-debug-devel-2.6.18-348.31.2.el5.s390x.rpm kernel-debuginfo-2.6.18-348.31.2.el5.s390x.rpm kernel-debuginfo-common-2.6.18-348.31.2.el5.s390x.rpm kernel-devel-2.6.18-348.31.2.el5.s390x.rpm kernel-headers-2.6.18-348.31.2.el5.s390x.rpm kernel-kdump-2.6.18-348.31.2.el5.s390x.rpm kernel-kdump-debuginfo-2.6.18-348.31.2.el5.s390x.rpm kernel-kdump-devel-2.6.18-348.31.2.el5.s390x.rpm x86_64: kernel-2.6.18-348.31.2.el5.x86_64.rpm kernel-debug-2.6.18-348.31.2.el5.x86_64.rpm kernel-debug-debuginfo-2.6.18-348.31.2.el5.x86_64.rpm kernel-debug-devel-2.6.18-348.31.2.el5.x86_64.rpm kernel-debuginfo-2.6.18-348.31.2.el5.x86_64.rpm kernel-debuginfo-common-2.6.18-348.31.2.el5.x86_64.rpm kernel-devel-2.6.18-348.31.2.el5.x86_64.rpm kernel-headers-2.6.18-348.31.2.el5.x86_64.rpm kernel-xen-2.6.18-348.31.2.el5.x86_64.rpm kernel-xen-debuginfo-2.6.18-348.31.2.el5.x86_64.rpm kernel-xen-devel-2.6.18-348.31.2.el5.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-2015-1805 https://access.redhat.com/security/updates/classification/#important 8. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/ Copyright 2015 Red Hat, Inc. - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iD8DBQFVgD9+XlSAg2UNWIIRAiIlAJ9Ym4LlZANhYITTSwI3VXYHnCtbRgCeN//g QtifwlBizlaXcGcTfQX/Jis= =xFk6 - -----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. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AusCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: http://www.auscert.org.au/render.html?cid=1980 =========================================================================== 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 iQIVAwUBVYCp4n6ZAP0PgtI9AQJbbQ//b4yzKW+8nsMdTs5/I25TLCxfUx8UUlTy jtfZsMV0o9LW6Lmua9EJvnYcFYj57rPzkI/xWLry1xOiTuU/Bp1g0V8dUYlfMU8j 0Y2U+5FDYsENIShrSWlsisSC5PaFbAYqFOHJ6eazWj+XoMRTyOH+myVTDuLLjzFn Ym2wTJcgMf3iyhbTwT9ziG1EaSWMQ5ezLgc2kCqP+UU/Td7aQoahwbyCvfIX3U1E LWPpjwvFp3uxKrqPs9NDDwq6b7NUst2+1zZR05U27nofsfzDGdQqECg42Zua39x5 HwToO6Lz1osPj16xoZKyRVCgHil9/8o3P7AnI6VGoEwLVJY+ybZngARWWyJ1dr7Z q+7TArwRlAuepINvI9cNRJj+YZ/wMrTT+X1EhOS3bfHQuUVznsJGt8eYhbrfGXvd 0cD73JM6daW6D6ZTb7E7+mhRDuujWoyDPWlSDSm9eIAZz2O8Z3stax6tWyrJW/K6 Ev4Sn/O2apyyP5CxfypS3sf0PEAtiXdOILI6kISibGajpgkldIpKITln1t2Qsu/1 sXZsP7ph4v+Flqe9d2vBRBi5A5JynIpaR0BO9a8SaZvMP+mbskWbDZGefemWwnts Snz1qFcI0d/noaWh4kGyrt2ZtI3xDwTjXAZygoMyVKAU6gMSX1rRLI90SRAsMjBA VSvC22VgzwY= =b3Af -----END PGP SIGNATURE-----