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===================================================================== Red Hat Security Advisory
Synopsis: Important: kernel security and bug fix update Advisory ID: RHSA-2010:0660-01 Product: Red Hat Enterprise Linux Advisory URL: https://rhn.redhat.com/errata/RHSA-2010-0660.html Issue date: 2010-08-30 CVE Names: CVE-2010-2240 CVE-2010-2798 =====================================================================
1. Summary:
Updated kernel packages that fix two security issues and multiple bugs are now available for Red Hat Enterprise Linux 5.3 Extended Update Support.
The Red Hat Security Response Team has rated this update as having important security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.
2. Relevant releases/architectures:
Red Hat Enterprise Linux (v. 5.3.z server) - i386, ia64, noarch, ppc, s390x, x86_64
3. Description:
The kernel packages contain the Linux kernel, the core of any Linux operating system.
This update fixes the following security issues:
* when an application has a stack overflow, the stack could silently overwrite another memory mapped area instead of a segmentation fault occurring, which could cause an application to execute arbitrary code, possibly leading to privilege escalation. It is known that the X Window System server can be used to trigger this flaw. (CVE-2010-2240, Important)
* a miscalculation of the size of the free space of the initial directory entry in a directory leaf block was found in the Linux kernel Global File System 2 (GFS2) implementation. A local, unprivileged user with write access to a GFS2-mounted file system could perform a rename operation on that file system to trigger a NULL pointer dereference, possibly resulting in a denial of service or privilege escalation. (CVE-2010-2798, Important)
Red Hat would like to thank the X.Org security team for reporting CVE-2010-2240, with upstream acknowledging Rafal Wojtczuk as the original reporter; and Grant Diffey of CenITex for reporting CVE-2010-2798.
This update also fixes the following bugs:
* the Red Hat Enterprise Linux 5.3 General Availability (GA) release introduced a regression in iSCSI failover time. While there was heavy I/O on the iSCSI layer, attempting to log out of an iSCSI connection at the same time a network problem was occurring, such as a switch dying or a cable being pulled out, resulted in iSCSI failover taking several minutes. With this update, failover occurs as expected. (BZ#583898)
* a bug was found in the way the megaraid_sas driver (for SAS based RAID controllers) handled physical disks and management IOCTLs. All physical disks were exported to the disk layer, allowing an oops in megasas_complete_cmd_dpc() when completing the IOCTL command if a timeout occurred. One possible trigger for this bug was running "mkfs". This update resolves this issue by updating the megaraid_sas driver to version 4.31. (BZ#619362)
* this update upgrades the bnx2x driver to version 1.52.1-6, and the bnx2x firmware to version 1.52.1-6, incorporating multiple bug fixes and enhancements. These fixes include: A race condition on systems using the bnx2x driver due to multiqueue being used to transmit data, but only a single queue transmit ON/OFF scheme being used (only a single queue is used with this update); a bug that could have led to a kernel panic when using iSCSI offload; and a bug that caused a firmware crash, causing network devices using the bnx2x driver to lose network connectivity. When this firmware crash occurred, errors such as "timeout polling for state" and "Stop leading failed!" were logged. A system reboot was required to restore network connectivity. (BZ#620663, BZ#620668, BZ#620669, BZ#620665)
Users should 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.
This update is available via the 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
To install kernel packages manually, use "rpm -ivh [package]". Do not use "rpm -Uvh" as that will remove the running kernel binaries from your system. You may use "rpm -e" to remove old kernels after determining that the new kernel functions properly on your system.
5. Bugs fixed (http://bugzilla.redhat.com/):
583898 - REGRESSION: Fix iscsi failover time [rhel-5.3.z] 606611 - CVE-2010-2240 kernel: mm: keep a guard page below a grow-down stack segment 620300 - CVE-2010-2798 kernel: gfs2: rename causes kernel panic 620663 - [Broadcom 5.4 FEAT] Update bnx2x to 1.48.105 [rhel-5.3.z] 620665 - [Broadcom 5.5 FEAT] Update bnx2x to 1.52.1-5 [rhel-5.3.z] 620668 - [Broadcom 5.5 feat] Update bnx2x firmware [rhel-5.3.z] 620669 - [Broadcom 5.5 bug] bnx2x: net device is in XON state while the Tx ring is full [rhel-5.3.z]
6. Package List:
Red Hat Enterprise Linux (v. 5.3.z server):
Source: kernel-2.6.18-128.23.1.el5.src.rpm
i386: kernel-2.6.18-128.23.1.el5.i686.rpm kernel-PAE-2.6.18-128.23.1.el5.i686.rpm kernel-PAE-debuginfo-2.6.18-128.23.1.el5.i686.rpm kernel-PAE-devel-2.6.18-128.23.1.el5.i686.rpm kernel-debug-2.6.18-128.23.1.el5.i686.rpm kernel-debug-debuginfo-2.6.18-128.23.1.el5.i686.rpm kernel-debug-devel-2.6.18-128.23.1.el5.i686.rpm kernel-debuginfo-2.6.18-128.23.1.el5.i686.rpm kernel-debuginfo-common-2.6.18-128.23.1.el5.i686.rpm kernel-devel-2.6.18-128.23.1.el5.i686.rpm kernel-headers-2.6.18-128.23.1.el5.i386.rpm kernel-xen-2.6.18-128.23.1.el5.i686.rpm kernel-xen-debuginfo-2.6.18-128.23.1.el5.i686.rpm kernel-xen-devel-2.6.18-128.23.1.el5.i686.rpm
ia64: kernel-2.6.18-128.23.1.el5.ia64.rpm kernel-debug-2.6.18-128.23.1.el5.ia64.rpm kernel-debug-debuginfo-2.6.18-128.23.1.el5.ia64.rpm kernel-debug-devel-2.6.18-128.23.1.el5.ia64.rpm kernel-debuginfo-2.6.18-128.23.1.el5.ia64.rpm kernel-debuginfo-common-2.6.18-128.23.1.el5.ia64.rpm kernel-devel-2.6.18-128.23.1.el5.ia64.rpm kernel-headers-2.6.18-128.23.1.el5.ia64.rpm kernel-xen-2.6.18-128.23.1.el5.ia64.rpm kernel-xen-debuginfo-2.6.18-128.23.1.el5.ia64.rpm kernel-xen-devel-2.6.18-128.23.1.el5.ia64.rpm
noarch: kernel-doc-2.6.18-128.23.1.el5.noarch.rpm
ppc: kernel-2.6.18-128.23.1.el5.ppc64.rpm kernel-debug-2.6.18-128.23.1.el5.ppc64.rpm kernel-debug-debuginfo-2.6.18-128.23.1.el5.ppc64.rpm kernel-debug-devel-2.6.18-128.23.1.el5.ppc64.rpm kernel-debuginfo-2.6.18-128.23.1.el5.ppc64.rpm kernel-debuginfo-common-2.6.18-128.23.1.el5.ppc64.rpm kernel-devel-2.6.18-128.23.1.el5.ppc64.rpm kernel-headers-2.6.18-128.23.1.el5.ppc.rpm kernel-headers-2.6.18-128.23.1.el5.ppc64.rpm kernel-kdump-2.6.18-128.23.1.el5.ppc64.rpm kernel-kdump-debuginfo-2.6.18-128.23.1.el5.ppc64.rpm kernel-kdump-devel-2.6.18-128.23.1.el5.ppc64.rpm
s390x: kernel-2.6.18-128.23.1.el5.s390x.rpm kernel-debug-2.6.18-128.23.1.el5.s390x.rpm kernel-debug-debuginfo-2.6.18-128.23.1.el5.s390x.rpm kernel-debug-devel-2.6.18-128.23.1.el5.s390x.rpm kernel-debuginfo-2.6.18-128.23.1.el5.s390x.rpm kernel-debuginfo-common-2.6.18-128.23.1.el5.s390x.rpm kernel-devel-2.6.18-128.23.1.el5.s390x.rpm kernel-headers-2.6.18-128.23.1.el5.s390x.rpm kernel-kdump-2.6.18-128.23.1.el5.s390x.rpm kernel-kdump-debuginfo-2.6.18-128.23.1.el5.s390x.rpm kernel-kdump-devel-2.6.18-128.23.1.el5.s390x.rpm
x86_64: kernel-2.6.18-128.23.1.el5.x86_64.rpm kernel-debug-2.6.18-128.23.1.el5.x86_64.rpm kernel-debug-debuginfo-2.6.18-128.23.1.el5.x86_64.rpm kernel-debug-devel-2.6.18-128.23.1.el5.x86_64.rpm kernel-debuginfo-2.6.18-128.23.1.el5.x86_64.rpm kernel-debuginfo-common-2.6.18-128.23.1.el5.x86_64.rpm kernel-devel-2.6.18-128.23.1.el5.x86_64.rpm kernel-headers-2.6.18-128.23.1.el5.x86_64.rpm kernel-xen-2.6.18-128.23.1.el5.x86_64.rpm kernel-xen-debuginfo-2.6.18-128.23.1.el5.x86_64.rpm kernel-xen-devel-2.6.18-128.23.1.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://www.redhat.com/security/team/key/#package
7. References:
https://www.redhat.com/security/data/cve/CVE-2010-2240.html https://www.redhat.com/security/data/cve/CVE-2010-2798.html 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/
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