Detections
Analytics
RHEL 6 : kernel (RHSA-2014:1997)
high Nessus Plugin ID 80072
Language:
Synopsis
The remote Red Hat host is missing one or more security updates for kernel.Description
The remote Redhat Enterprise Linux 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2014:1997 advisory.* A flaw was found in the way the Linux kernel handled GS segment register base switching when recovering from a #SS (stack segment) fault on an erroneous return to user space. A local, unprivileged user could use this flaw to escalate their privileges on the system. (CVE-2014-9322, Important)
* A flaw was found in the way the Linux kernel's SCTP implementation handled malformed or duplicate Address Configuration Change Chunks (ASCONF). A remote attacker could use either of these flaws to crash the system. (CVE-2014-3673, CVE-2014-3687, Important)
* A flaw was found in the way the Linux kernel's SCTP implementation handled the association's output queue. A remote attacker could send specially crafted packets that would cause the system to use an excessive amount of memory, leading to a denial of service. (CVE-2014-3688, Important)
* A stack overflow flaw caused by infinite recursion was found in the way the Linux kernel's UDF file system implementation processed indirect ICBs.
An attacker with physical access to the system could use a specially crafted UDF image to crash the system. (CVE-2014-6410, Low)
* It was found that the Linux kernel's networking implementation did not correctly handle the setting of the keepalive socket option on raw sockets.
A local user able to create a raw socket could use this flaw to crash the system. (CVE-2012-6657, Low)
* It was found that the parse_rock_ridge_inode_internal() function of the Linux kernel's ISOFS implementation did not correctly check relocated directories when processing Rock Ridge child link (CL) tags. An attacker with physical access to the system could use a specially crafted ISO image to crash the system or, potentially, escalate their privileges on the system. (CVE-2014-5471, CVE-2014-5472, Low)
Red Hat would like to thank Andy Lutomirski for reporting CVE-2014-9322.
The CVE-2014-3673 issue was discovered by Liu Wei of Red Hat.
Bug fixes:
* This update fixes a race condition issue between the sock_queue_err_skb function and sk_forward_alloc handling in the socket error queue (MSG_ERRQUEUE), which could occasionally cause the kernel, for example when using PTP, to incorrectly track allocated memory for the error queue, in which case a traceback would occur in the system log. (BZ#1155427)
* The zcrypt device driver did not detect certain crypto cards and the related domains for crypto adapters on System z and s390x architectures.
Consequently, it was not possible to run the system on new crypto hardware.
This update enables toleration mode for such devices so that the system can make use of newer crypto hardware. (BZ#1158311)
* After mounting and unmounting an XFS file system several times consecutively, the umount command occasionally became unresponsive.
This was caused by the xlog_cil_force_lsn() function that was not waiting for completion as expected. With this update, xlog_cil_force_lsn() has been modified to correctly wait for completion, thus fixing this bug.
(BZ#1158325)
* When using the ixgbe adapter with disabled LRO and the tx-usec or rs-usec variables set to 0, transmit interrupts could not be set lower than the default of 8 buffered tx frames. Consequently, a delay of TCP transfer occurred. The restriction of a minimum of 8 buffered frames has been removed, and the TCP delay no longer occurs. (BZ#1158326)
* The offb driver has been updated for the QEMU standard VGA adapter, fixing an incorrect displaying of colors issue. (BZ#1158328)
* Under certain circumstances, when a discovered MTU expired, the IPv6 connection became unavailable for a short period of time. This bug has been fixed, and the connection now works as expected. (BZ#1161418)
* A low throughput occurred when using the dm-thin driver to write to unprovisioned or shared chunks for a thin pool with the chunk size bigger than the max_sectors_kb variable. (BZ#1161420)
* Large write workloads on thin LVs could cause the iozone and smallfile utilities to terminate unexpectedly. (BZ#1161421)
Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.
Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.
Solution
Update the RHEL kernel package based on the guidance in RHSA-2014:1997.See Also
http://www.nessus.org/u?dd70bf15
https://access.redhat.com/errata/RHSA-2014:1997
https://access.redhat.com/security/updates/classification/#important
https://bugzilla.redhat.com/show_bug.cgi?id=1134099
https://bugzilla.redhat.com/show_bug.cgi?id=1141742
https://bugzilla.redhat.com/show_bug.cgi?id=1141809
https://bugzilla.redhat.com/show_bug.cgi?id=1147850
https://bugzilla.redhat.com/show_bug.cgi?id=1155731
Plugin Details
Severity: High
ID: 80072
File Name: redhat-RHSA-2014-1997.nasl
Version: 1.20
Type: local
Agent: unix
Family: Red Hat Local Security Checks
Published: 12/17/2014
Updated: 11/4/2024
Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: High
Score: 8.4
Vendor
Vendor Severity: Important
CVSS v2
Risk Factor: High
Base Score: 7.2
Temporal Score: 5.6
Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C
CVSS Score Source: CVE-2014-9322
CVSS v3
Risk Factor: High
Base Score: 7.8
Temporal Score: 7
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C
Vulnerability Information
CPE: p-cpe:/a:redhat:enterprise_linux:kernel, p-cpe:/a:redhat:enterprise_linux:kernel-headers, p-cpe:/a:redhat:enterprise_linux:kernel-firmware, cpe:/o:redhat:enterprise_linux:6, p-cpe:/a:redhat:enterprise_linux:kernel-debug-devel, p-cpe:/a:redhat:enterprise_linux:kernel-kdump, p-cpe:/a:redhat:enterprise_linux:kernel-bootwrapper, p-cpe:/a:redhat:enterprise_linux:python-perf, p-cpe:/a:redhat:enterprise_linux:kernel-kdump-devel, p-cpe:/a:redhat:enterprise_linux:kernel-devel, p-cpe:/a:redhat:enterprise_linux:kernel-debug, p-cpe:/a:redhat:enterprise_linux:perf
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: 12/16/2014
Vulnerability Publication Date: 9/1/2014
Reference Information
CVE: CVE-2012-6657, CVE-2014-3673, CVE-2014-3687, CVE-2014-3688, CVE-2014-5471, CVE-2014-5472, CVE-2014-6410, CVE-2014-9322