RHEL 5 : kernel (RHSA-2010:0660)

High Nessus Plugin ID 63950


The remote Red Hat host is missing one or more security updates.


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.

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.

* 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.


Update the affected packages.

See Also




Plugin Details

Severity: High

ID: 63950

File Name: redhat-RHSA-2010-0660.nasl

Version: $Revision: 1.7 $

Type: local

Agent: unix

Published: 2013/01/24

Modified: 2016/05/13

Dependencies: 12634

Risk Information

Risk Factor: High


Base Score: 7.2

Temporal Score: 6.3

Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C

Temporal Vector: CVSS2#E:ND/RL:OF/RC:C

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:kernel, p-cpe:/a:redhat:enterprise_linux:kernel-PAE, p-cpe:/a:redhat:enterprise_linux:kernel-PAE-devel, p-cpe:/a:redhat:enterprise_linux:kernel-debug, p-cpe:/a:redhat:enterprise_linux:kernel-debug-devel, p-cpe:/a:redhat:enterprise_linux:kernel-devel, p-cpe:/a:redhat:enterprise_linux:kernel-doc, p-cpe:/a:redhat:enterprise_linux:kernel-headers, p-cpe:/a:redhat:enterprise_linux:kernel-kdump, p-cpe:/a:redhat:enterprise_linux:kernel-kdump-devel, p-cpe:/a:redhat:enterprise_linux:kernel-xen, p-cpe:/a:redhat:enterprise_linux:kernel-xen-devel, cpe:/o:redhat:enterprise_linux:5.3

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list

Exploit Available: false

Exploit Ease: No known exploits are available

Patch Publication Date: 2010/08/30

Reference Information

CVE: CVE-2010-2240, CVE-2010-2798

BID: 42124

RHSA: 2010:0660