RHEL 6 : kernel (RHSA-2011:0498)

high Nessus Plugin ID 53867

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Synopsis

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

Description

Updated kernel packages that fix several security issues, various bugs, and add an enhancement are now available for Red Hat Enterprise Linux 6.

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.

Security fixes :

* An integer overflow flaw in ib_uverbs_poll_cq() could allow a local, unprivileged user to cause a denial of service or escalate their privileges. (CVE-2010-4649, Important)

* An integer signedness flaw in drm_modeset_ctl() could allow a local, unprivileged user to cause a denial of service or escalate their privileges. (CVE-2011-1013, Important)

* The Radeon GPU drivers in the Linux kernel were missing sanity checks for the Anti Aliasing (AA) resolve register values which could allow a local, unprivileged user to cause a denial of service or escalate their privileges on systems using a graphics card from the ATI Radeon R300, R400, or R500 family of cards. (CVE-2011-1016, Important)

* A flaw in dccp_rcv_state_process() could allow a remote attacker to cause a denial of service, even when the socket was already closed.
(CVE-2011-1093, Important)

* A flaw in the Linux kernel's Stream Control Transmission Protocol (SCTP) implementation could allow a remote attacker to cause a denial of service if the sysctl 'net.sctp.addip_enable' and 'auth_enable' variables were turned on (they are off by default). (CVE-2011-1573, Important)

* A memory leak in the inotify_init() system call. In some cases, it could leak a group, which could allow a local, unprivileged user to eventually cause a denial of service. (CVE-2010-4250, Moderate)

* A missing validation of a null-terminated string data structure element in bnep_sock_ioctl() could allow a local user to cause an information leak or a denial of service. (CVE-2011-1079, Moderate)

* An information leak in bcm_connect() in the Controller Area Network (CAN) Broadcast Manager implementation could allow a local, unprivileged user to leak kernel mode addresses in '/proc/net/can-bcm'. (CVE-2010-4565, Low)

* A flaw was found in the Linux kernel's Integrity Measurement Architecture (IMA) implementation. When SELinux was disabled, adding an IMA rule which was supposed to be processed by SELinux would cause ima_match_rules() to always succeed, ignoring any remaining rules.
(CVE-2011-0006, Low)

* A missing initialization flaw in the XFS file system implementation could lead to an information leak. (CVE-2011-0711, Low)

* Buffer overflow flaws in snd_usb_caiaq_audio_init() and snd_usb_caiaq_midi_init() could allow a local, unprivileged user with access to a Native Instruments USB audio device to cause a denial of service or escalate their privileges. (CVE-2011-0712, Low)

* The start_code and end_code values in '/proc/[pid]/stat' were not protected. In certain scenarios, this flaw could be used to defeat Address Space Layout Randomization (ASLR). (CVE-2011-0726, Low)

* A flaw in dev_load() could allow a local user who has the CAP_NET_ADMIN capability to load arbitrary modules from '/lib/modules/', instead of only netdev modules. (CVE-2011-1019, Low)

* A flaw in ib_uverbs_poll_cq() could allow a local, unprivileged user to cause an information leak. (CVE-2011-1044, Low)

* A missing validation of a null-terminated string data structure element in do_replace() could allow a local user who has the CAP_NET_ADMIN capability to cause an information leak. (CVE-2011-1080, Low)

Red Hat would like to thank Vegard Nossum for reporting CVE-2010-4250;
Vasiliy Kulikov for reporting CVE-2011-1079, CVE-2011-1019, and CVE-2011-1080; Dan Rosenberg for reporting CVE-2010-4565 and CVE-2011-0711; Rafael Dominguez Vega for reporting CVE-2011-0712; and Kees Cook for reporting CVE-2011-0726.

This update also fixes various bugs and adds an enhancement.
Documentation for these changes will be available shortly from the Technical Notes document linked to in the References section.

Users should upgrade to these updated packages, which contain backported patches to resolve these issues, and fix the bugs and add the enhancement noted in the Technical Notes. The system must be rebooted for this update to take effect.

Solution

Update the affected packages.

Plugin Details

Severity: High

ID: 53867

File Name: redhat-RHSA-2011-0498.nasl

Version: 1.20

Type: local

Agent: unix

Family: Red Hat Local Security Checks

Published: 5/11/2011

Updated: 1/14/2021

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

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

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:kernel-kdump-debuginfo, cpe:/o:redhat:enterprise_linux:6.0, p-cpe:/a:redhat:enterprise_linux:kernel-headers, p-cpe:/a:redhat:enterprise_linux:kernel-firmware, p-cpe:/a:redhat:enterprise_linux:kernel-devel, p-cpe:/a:redhat:enterprise_linux:kernel-kdump-devel, p-cpe:/a:redhat:enterprise_linux:kernel-debuginfo-common-i686, cpe:/o:redhat:enterprise_linux:6, p-cpe:/a:redhat:enterprise_linux:kernel-debug-devel, p-cpe:/a:redhat:enterprise_linux:kernel-doc, p-cpe:/a:redhat:enterprise_linux:kernel-kdump, p-cpe:/a:redhat:enterprise_linux:kernel-debug-debuginfo, p-cpe:/a:redhat:enterprise_linux:kernel-debuginfo-common-x86_64, p-cpe:/a:redhat:enterprise_linux:kernel-debuginfo-common-s390x, p-cpe:/a:redhat:enterprise_linux:kernel, p-cpe:/a:redhat:enterprise_linux:kernel-debug, p-cpe:/a:redhat:enterprise_linux:kernel-debuginfo, p-cpe:/a:redhat:enterprise_linux:perf

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

Exploit Ease: No known exploits are available

Patch Publication Date: 5/10/2011

Vulnerability Publication Date: 12/29/2010

Reference Information

CVE: CVE-2010-4250, CVE-2010-4565, CVE-2010-4649, CVE-2011-0006, CVE-2011-0711, CVE-2011-0712, CVE-2011-0726, CVE-2011-1013, CVE-2011-1016, CVE-2011-1019, CVE-2011-1044, CVE-2011-1079, CVE-2011-1080, CVE-2011-1093, CVE-2011-1573

BID: 46417, 46419, 46488, 46557, 46616, 46793, 47308, 47639, 47792

RHSA: 2011:0498

Detections

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