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Test ID:1.3.6.1.4.1.25623.1.0.120252
Category:Amazon Linux Local Security Checks
Title:Amazon Linux: Security Advisory (ALAS-2012-45)
Summary:The remote host is missing an update announced via the referenced Security Advisory.
Description:Summary:
The remote host is missing an update announced via the referenced Security Advisory.

Vulnerability Insight:
The journal_unmap_buffer function in fs/jbd2/transaction.c in the Linux kernel before 3.3.1 does not properly handle the _Delay and _Unwritten buffer head states, which allows local users to cause a denial of service (system crash) by leveraging the presence of an ext4 filesystem that was mounted with a journal.

Solution:
Run yum update kernel to update your system. You will need to reboot your system in order for the new kernel to be running.

CVSS Score:
4.9

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

Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2011-4086
Debian Security Information: DSA-2469 (Google Search)
http://www.debian.org/security/2012/dsa-2469
RedHat Security Advisories: RHSA-2012:0571
http://rhn.redhat.com/errata/RHSA-2012-0571.html
RedHat Security Advisories: RHSA-2012:0670
http://rhn.redhat.com/errata/RHSA-2012-0670.html
http://secunia.com/advisories/48898
http://secunia.com/advisories/48964
SuSE Security Announcement: SUSE-SU-2012:0554 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2012-04/msg00021.html
SuSE Security Announcement: SUSE-SU-2012:0616 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2012-05/msg00013.html
CopyrightCopyright (C) 2015 Eero Volotinen

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