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Test ID:1.3.6.1.4.1.25623.1.0.871363
Category:Red Hat Local Security Checks
Title:RedHat Update for kernel RHSA-2015:0987-01
Summary:The remote host is missing an update for the 'kernel'; package(s) announced via the referenced advisory.
Description:Summary:
The remote host is missing an update for the 'kernel'
package(s) announced via the referenced advisory.

Vulnerability Insight:
The kernel packages contain the Linux kernel, the core of any Linux
operating system.

* A buffer overflow flaw was found in the way the Linux kernel's Intel
AES-NI instructions optimized version of the RFC4106 GCM mode decryption
functionality handled fragmented packets. A remote attacker could use this
flaw to crash, or potentially escalate their privileges on, a system over a
connection with an active AEC-GCM mode IPSec security association.
(CVE-2015-3331, Important)

This update also fixes the following bugs:

* Previously, the kernel audit subsystem did not correctly track file path
names which could lead to empty, or '(null)' path names in the PATH audit
records. This update fixes the bug by correctly tracking file path names
and displaying the names in the audit PATH records. (BZ#1197746)

* Due to a change in the internal representation of field types,
AUDIT_LOGINUID set to -1 (4294967295) by the audit API was asymmetrically
converted to an AUDIT_LOGINUID_SET field with a value of 0, unrecognized by
an older audit API. To fix this bug, the kernel takes note about the way
the rule has been formulated and reports the rule in the originally given
form. As a result, older versions of audit provide a report as expected, in
the AUDIT_LOGINUID field type form, whereas the newer versions can migrate
to the new AUDIT_LOGINUID_SET filed type. (BZ#1197748)

* The GFS2 file system 'Splice Read' operation, which is used for the
sendfile() function, was not properly allocating a required multi-block
reservation structure in memory. Consequently, when the GFS2 block
allocator was called to assign blocks of data, it attempted to dereference
the structure, which resulted in a kernel panic. With this update, 'Splice
read' operation properly allocates the necessary reservation structure in
memory prior to calling the block allocator, and sendfile() thus works
properly for GFS2. (BZ#1201256)

* Moving an Open vSwitch (OVS) internal vport to a different net name space
and subsequently deleting that name space led to a kernel panic. This bug
has been fixed by removing the OVS internal vport at net name space
deletion. (BZ#1202357)

* Previously, the kernel audit subsystem was not correctly handling file
and directory moves, leading to audit records that did not match the audit
file watches. This fix correctly handles moves such that the audit file
watches work correctly. (BZ#1202358)

* Due to a regression, the crypto adapter could not be set online. A patch
has been provided that fixes the device registration process so that the
device can be used also before the registration pro ...

Description truncated, please see the referenced URL(s) for more information.

Affected Software/OS:
kernel on Red Hat Enterprise Linux Server (v. 7)

Solution:
Please Install the Updated Packages.

CVSS Score:
9.3

CVSS Vector:
AV:N/AC:M/Au:N/C:C/I:C/A:C

Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2015-3331
Debian Security Information: DSA-3237 (Google Search)
http://www.debian.org/security/2015/dsa-3237
http://www.openwall.com/lists/oss-security/2015/04/14/16
RedHat Security Advisories: RHSA-2015:1081
http://rhn.redhat.com/errata/RHSA-2015-1081.html
RedHat Security Advisories: RHSA-2015:1199
http://rhn.redhat.com/errata/RHSA-2015-1199.html
http://www.securitytracker.com/id/1032416
SuSE Security Announcement: SUSE-SU-2015:1478 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00004.html
SuSE Security Announcement: SUSE-SU-2015:1487 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00007.html
SuSE Security Announcement: SUSE-SU-2015:1488 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00008.html
SuSE Security Announcement: SUSE-SU-2015:1489 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00009.html
SuSE Security Announcement: SUSE-SU-2015:1491 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00011.html
http://www.ubuntu.com/usn/USN-2631-1
http://www.ubuntu.com/usn/USN-2632-1
CopyrightCopyright (C) 2015 Greenbone Networks GmbH

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