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CentOS Update for kernel CESA-2014:1143 centos5

Information

Severity

Severity

Low

Family

Family

CentOS Local Security Checks

CVSSv2 Base

CVSSv2 Base

3.3

CVSSv2 Vector

CVSSv2 Vector

AV:L/AC:M/Au:N/C:P/I:N/A:P

Solution Type

Solution Type

Vendor Patch

Created

Created

7 years ago

Modified

Modified

3 years ago

Summary

The remote host is missing an update for the 'kernel' package(s) announced via the referenced advisory.

Insight

Insight

The kernel packages contain the Linux kernel, the core of any Linux operating system. * An out-of-bounds memory access flaw was found in the Linux kernel's system call auditing implementation. On a system with existing audit rules defined, a local, unprivileged user could use this flaw to leak kernel memory to user space or, potentially, crash the system. (CVE-2014-3917, Moderate) This update also fixes the following bugs: * A bug in the journaling code (jbd and jbd2) could, under very heavy workload of fsync() operations, trigger a BUG_ON and result in a kernel oops. Also, fdatasync() could fail to immediately write out changes in the file size only. These problems have been resolved by backporting a series of patches that fixed these problems in the respective code on Red Hat Enterprise Linux 6. This update also improves performance of ext3 and ext4 file systems. (BZ#1116027) * Due to a bug in the ext4 code, the fdatasync() system call did not force the inode size change to be written to the disk if it was the only metadata change in the file. This could result in the wrong inode size and possible data loss if the system terminated unexpectedly. The code handling inode updates has been fixed and fdatasync() now writes data to the disk as expected in this situation. (BZ#1117665) * A workaround to a DMA read problem in the tg3 driver was incorrectly applied to the whole Broadcom 5719 and 5720 chipset family. This workaround is valid only to the A0 revision of the 5719 chips and for other revisions and chips causes occasional Tx timeouts. This update correctly applies the aforementioned workaround only to the A0 revision of the 5719 chips. (BZ#1121017) * Due to a bug in the page writeback code, the system could become unresponsive when being under memory pressure and heavy NFS load. This update fixes the code responsible for handling of dirty pages, and dirty page write outs no longer flood the work queue. (BZ#1125246) All kernel users are advised to upgrade to these updated packages, which contain backported patches to correct these issues. The system must be rebooted for this update to take effect.

Affected Software

Affected Software

kernel on CentOS 5

Solution

Solution

Please install the updated packages.

Common Vulnerabilities and Exposures (CVE)