RHEL 6 : MRG (RHSA-2013:1264)

high Nessus Plugin ID 76665

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Synopsis

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

Description

Updated kernel-rt packages that fix several security issues and multiple bugs are now available for Red Hat Enterprise MRG 2.3.

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-rt packages contain the Linux kernel, the core of any Linux operating system.

This update fixes the following security issues :

* A heap-based buffer overflow flaw was found in the Linux kernel's iSCSI target subsystem. A remote attacker could use a specially crafted iSCSI request to cause a denial of service on a system or, potentially, escalate their privileges on that system. (CVE-2013-2850, Important)

* A flaw was found in the Linux kernel's Performance Events implementation. On systems with certain Intel processors, a local, unprivileged user could use this flaw to cause a denial of service by leveraging the perf subsystem to write into the reserved bits of the OFFCORE_RSP_0 and OFFCORE_RSP_1 model-specific registers.
(CVE-2013-2146, Moderate)

* An invalid pointer dereference flaw was found in the Linux kernel's TCP/IP protocol suite implementation. A local, unprivileged user could use this flaw to crash the system or, potentially, escalate their privileges on the system by using sendmsg() with an IPv6 socket connected to an IPv4 destination. (CVE-2013-2232, Moderate)

* Two flaws were found in the way the Linux kernel's TCP/IP protocol suite implementation handled IPv6 sockets that used the UDP_CORK option. A local, unprivileged user could use these flaws to cause a denial of service. (CVE-2013-4162, CVE-2013-4163, Moderate)

* A flaw was found in the Linux kernel's Chipidea USB driver. A local, unprivileged user could use this flaw to cause a denial of service.
(CVE-2013-2058, Low)

* Information leak flaws in the Linux kernel could allow a privileged, local user to leak kernel memory to user-space. (CVE-2013-2147, CVE-2013-2164, CVE-2013-2234, CVE-2013-2237, Low)

* Information leak flaws in the Linux kernel could allow a local, unprivileged user to leak kernel memory to user-space. (CVE-2013-2141, CVE-2013-2148, Low)

* A format string flaw was found in the Linux kernel's block layer. A privileged, local user could potentially use this flaw to escalate their privileges to kernel level (ring0). (CVE-2013-2851, Low)

* A format string flaw was found in the b43_do_request_fw() function in the Linux kernel's b43 driver implementation. A local user who is able to specify the 'fwpostfix' b43 module parameter could use this flaw to cause a denial of service or, potentially, escalate their privileges. (CVE-2013-2852, Low)

* A NULL pointer dereference flaw was found in the Linux kernel's ftrace and function tracer implementations. A local user who has the CAP_SYS_ADMIN capability could use this flaw to cause a denial of service. (CVE-2013-3301, Low)

Red Hat would like to thank Kees Cook for reporting CVE-2013-2850, CVE-2013-2851, and CVE-2013-2852; and Hannes Frederic Sowa for reporting CVE-2013-4162 and CVE-2013-4163.

This update also fixes the following bugs :

* The following drivers have been updated, fixing a number of bugs:
myri10ge, bna, enic, mlx4, bgmac, bcma, cxgb3, cxgb4, qlcnic, r8169, be2net, e100, e1000, e1000e, igb, ixgbe, brcm80211, cpsw, pch_gbe, bfin_mac, bnx2x, bnx2, cnic, tg3, and sfc. (BZ#974138)

* The realtime kernel was not built with the CONFIG_NET_DROP_WATCH kernel configuration option enabled. As such, attempting to run the dropwatch command resulted in the following error :

Unable to find NET_DM family, dropwatch can't work Cleaning up on socket creation error

With this update, the realtime kernel is built with the CONFIG_NET_DROP_WATCH option, allowing dropwatch to work as expected.
(BZ#979417)

Users should upgrade to these updated packages, which upgrade the kernel-rt kernel to version kernel-rt-3.6.11.5-rt37, and correct these issues. The system must be rebooted for this update to take effect.

Solution

Update the affected packages.

Plugin Details

Severity: High

ID: 76665

File Name: redhat-RHSA-2013-1264.nasl

Version: 1.17

Type: local

Agent: unix

Family: Red Hat Local Security Checks

Published: 7/22/2014

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: 7.9

Temporal Score: 6.2

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

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:kernel-rt, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-devel, p-cpe:/a:redhat:enterprise_linux:kernel-rt-devel, p-cpe:/a:redhat:enterprise_linux:kernel-rt-trace-debuginfo, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-debuginfo, cpe:/o:redhat:enterprise_linux:6, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debuginfo-common-x86_64, p-cpe:/a:redhat:enterprise_linux:kernel-rt-trace-devel, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debuginfo, p-cpe:/a:redhat:enterprise_linux:kernel-rt-vanilla-debuginfo, p-cpe:/a:redhat:enterprise_linux:kernel-rt-vanilla-devel, p-cpe:/a:redhat:enterprise_linux:kernel-rt-firmware, p-cpe:/a:redhat:enterprise_linux:mrg-rt-release, p-cpe:/a:redhat:enterprise_linux:kernel-rt-trace, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug, p-cpe:/a:redhat:enterprise_linux:kernel-rt-doc, p-cpe:/a:redhat:enterprise_linux:kernel-rt-vanilla

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 9/16/2013

Vulnerability Publication Date: 4/29/2013

Reference Information

CVE: CVE-2013-2058, CVE-2013-2141, CVE-2013-2146, CVE-2013-2147, CVE-2013-2148, CVE-2013-2164, CVE-2013-2232, CVE-2013-2234, CVE-2013-2237, CVE-2013-2850, CVE-2013-2851, CVE-2013-2852, CVE-2013-3301, CVE-2013-4162, CVE-2013-4163

BID: 59055, 59638, 60243, 60254, 60280, 60324, 60341, 60375, 60409, 60410, 60874, 60893, 60953, 61411, 61412

RHSA: 2013:1264

Detections

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