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Test ID:
Category:Red Hat Local Security Checks
Title:RedHat Security Advisory RHSA-2008:0055

The remote host is missing updates announced in
advisory RHSA-2008:0055.

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

These updated kernel packages fix the following security issues:

A flaw was found in the virtual filesystem (VFS). A local unprivileged
user could truncate directories to which they had write permission
could render the contents of the directory inaccessible. (CVE-2008-0001,

A flaw was found in the implementation of ptrace. A local unprivileged user
could trigger this flaw and possibly cause a denial of service (system
hang). (CVE-2007-5500, Important)

A flaw was found in the way the Red Hat Enterprise Linux 4 kernel handled
page faults when a CPU used the NUMA method for accessing memory on Itanium
architectures. A local unprivileged user could trigger this flaw and cause
a denial of service (system panic). (CVE-2007-4130, Important)

A possible NULL pointer dereference was found in the chrp_show_cpuinfo
function when using the PowerPC architecture. This may have allowed a local
unprivileged user to cause a denial of service (crash).
(CVE-2007-6694, Moderate)

A flaw was found in the way core dump files were created. If a local user
can get a root-owned process to dump a core file into a directory, which
the user has write access to, they could gain read access to that core
file. This could potentially grant unauthorized access to sensitive
information. (CVE-2007-6206, Moderate)

Two buffer overflow flaws were found in the Linux kernel ISDN subsystem. A
local unprivileged user could use these flaws to cause a denial of
service. (CVE-2007-6063, CVE-2007-6151, Moderate)

As well, these updated packages fix the following bug:

* when moving volumes that contain multiple segments, and a mirror segment
is not the first in the mapping table, running the pvmove /dev/[device]
/dev/[device] command caused a kernel panic. A kernel: Unable to handle
kernel paging request at virtual address [address] error was logged by

Red Hat Enterprise Linux 4 users are advised to upgrade to these updated
packages, which contain backported patches to resolve these issues.

Please note that this update is available via
Red Hat Network. To use Red Hat Network, launch the Red
Hat Update Agent with the following command: up2date

Risk factor : High

CVSS Score:

Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2007-4130
BugTraq ID: 27556
RedHat Security Advisories: RHSA-2008:0055
Common Vulnerability Exposure (CVE) ID: CVE-2007-5500
BugTraq ID: 26477
Debian Security Information: DSA-1428 (Google Search)
SuSE Security Announcement: SUSE-SA:2007:063 (Google Search)
SuSE Security Announcement: SUSE-SA:2008:013 (Google Search)
SuSE Security Announcement: SUSE-SA:2008:030 (Google Search)
SuSE Security Announcement: SUSE-SA:2008:032 (Google Search)
XForce ISS Database: linux-kernel-waittaskstopped-dos(38547)
Common Vulnerability Exposure (CVE) ID: CVE-2007-6063
BugTraq ID: 26605
Debian Security Information: DSA-1436 (Google Search)
Debian Security Information: DSA-1503 (Google Search)
Debian Security Information: DSA-1504 (Google Search)
SuSE Security Announcement: SUSE-SA:2007:064 (Google Search)
SuSE Security Announcement: SUSE-SA:2008:006 (Google Search)
Common Vulnerability Exposure (CVE) ID: CVE-2007-6151
BugTraq ID: 27497
Debian Security Information: DSA-1479 (Google Search)
SuSE Security Announcement: SUSE-SA:2008:007 (Google Search)
SuSE Security Announcement: SUSE-SA:2008:017 (Google Search)
Common Vulnerability Exposure (CVE) ID: CVE-2007-6206
BugTraq ID: 26701
Bugtraq: 20080208 rPSA-2008-0048-1 kernel (Google Search)
XForce ISS Database: kernel-core-dump-information-disclosure(38841)
Common Vulnerability Exposure (CVE) ID: CVE-2007-6694
BugTraq ID: 27555
Debian Security Information: DSA-1565 (Google Search)
Common Vulnerability Exposure (CVE) ID: CVE-2008-0001
BugTraq ID: 27280
Bugtraq: 20080117 rPSA-2008-0021-1 kernel (Google Search)
XForce ISS Database: linux-directory-security-bypass(39672)
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