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Test ID:
Category:Red Hat Local Security Checks
Title:RedHat Update for kernel RHSA-2012:1064-01
Summary:The remote host is missing an update for the 'kernel'; package(s) announced via the referenced advisory.
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.

This update fixes the following security issues:

* A NULL pointer dereference flaw was found in the nf_ct_frag6_reasm()
function in the Linux kernel's netfilter IPv6 connection tracking
implementation. A remote attacker could use this flaw to send
specially-crafted packets to a target system that is using IPv6 and also
has the nf_conntrack_ipv6 kernel module loaded, causing it to crash.
(CVE-2012-2744, Important)

* A flaw was found in the way the Linux kernel's key management facility
handled replacement session keyrings on process forks. A local,
unprivileged user could use this flaw to cause a denial of service.
(CVE-2012-2745, Moderate)

Red Hat would like to thank an anonymous contributor working with the
Beyond Security SecuriTeam Secure Disclosure program for reporting

This update also fixes the following bugs:

* Previously introduced firmware files required for new Realtek chipsets
contained an invalid prefix ('rtl_nic_') in the file names, for example
'/lib/firmware/rtl_nic/rtl_nic_rtl8168d-1.fw'. This update corrects these
file names. For example, the aforementioned file is now correctly named
'/lib/firmware/rtl_nic/rtl8168d-1.fw'. (BZ#832359)

* This update blacklists the ADMA428M revision of the 2GB ATA Flash Disk
device. This is due to data corruption occurring on the said device when
the Ultra-DMA 66 transfer mode is used. When the
'libata.force=5:pio0, 6:pio0' kernel parameter is set, the aforementioned
device works as expected. (BZ#832363)

* On Red Hat Enterprise Linux 6, mounting an NFS export from a server
running Windows Server 2012 Release Candidate returned the
NFS4ERR_MINOR_VERS_MISMATCH error because Windows Server 2012 Release
Candidate supports NFSv4.1 only. Red Hat Enterprise Linux 6 did not
properly handle the returned error and did not fall back to using NFSv3,
which caused the mount operation to fail. With this update, when the
NFS4ERR_MINOR_VERS_MISMATCH error is returned, the mount operation properly
falls back to using NFSv3 and no longer fails. (BZ#832365)

* On ext4 file systems, when fallocate() failed to allocate blocks due to
the ENOSPC condition (no space left on device) for a file larger than 4 GB,
the size of the file became corrupted and, consequently, caused file system
corruption. This was due to a mi ...

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

Affected Software/OS:
kernel on Red Hat Enterprise Linux Desktop (v. 6),
Red Hat Enterprise Linux Server (v. 6),
Red Hat Enterprise Linux Workstation (v. 6)

Please Install the Updated Packages.

CVSS Score:

CVSS Vector:

Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2012-2744
BugTraq ID: 54367
RedHat Security Advisories: RHSA-2012:1064
RedHat Security Advisories: RHSA-2012:1148
Common Vulnerability Exposure (CVE) ID: CVE-2012-2745
BugTraq ID: 54365
CopyrightCopyright (c) 2012 Greenbone Networks GmbH

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