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Test ID:
Category:Red Hat Local Security Checks
Title:RedHat Security Advisory RHSA-2007:0347

The remote host is missing updates announced in
advisory RHSA-2007:0347.

The Linux kernel handles the basic functions of the operating system.

These new kernel packages contain fixes for the following security issues:

* a flaw in the handling of IPv6 type 0 routing headers that allowed remote
users to cause a denial of service that led to a network amplification
between two routers (CVE-2007-2242, Important).

* a flaw in the nfnetlink_log netfilter module that allowed a local user to
cause a denial of service (CVE-2007-1496, Important).

* a flaw in the flow list of listening IPv6 sockets that allowed a local
user to cause a denial of service (CVE-2007-1592, Important).

* a flaw in the handling of netlink messages that allowed a local user to
cause a denial of service (infinite recursion) (CVE-2007-1861, Important).

* a flaw in the IPv4 forwarding base that allowed a local user to cause an
out-of-bounds access (CVE-2007-2172, Important).

* a flaw in the nf_conntrack netfilter module for IPv6 that allowed remote
users to bypass certain netfilter rules using IPv6 fragments
(CVE-2007-1497, Moderate).

In addition to the security issues described above, fixes for the following
have been included:

* a regression in ipv6 routing.

* an error in memory initialization that caused gdb to output inaccurate
backtraces on ia64.

* the nmi watchdog timeout was updated from 5 to 30 seconds.

* a flaw in distributed lock management that could result in errors during
virtual machine migration.

* an omitted include in kernel-headers that led to compile failures for
some packages.

Red Hat Enterprise Linux 5 users are advised to upgrade to these packages,
which contain backported patches to correct 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-2007-1496
BugTraq ID: 22946
Debian Security Information: DSA-1289 (Google Search)
SuSE Security Announcement: SUSE-SA:2007:043 (Google Search)
Common Vulnerability Exposure (CVE) ID: CVE-2007-1497
BugTraq ID: 23976
Common Vulnerability Exposure (CVE) ID: CVE-2007-1592
BugTraq ID: 23104
Debian Security Information: DSA-1286 (Google Search)
Debian Security Information: DSA-1304 (Google Search)
Debian Security Information: DSA-1503 (Google Search)
RedHat Security Advisories: RHBA-2007-0304
RedHat Security Advisories: RHSA-2007:0436
SuSE Security Announcement: SUSE-SA:2007:029 (Google Search)
SuSE Security Announcement: SUSE-SA:2007:030 (Google Search)
SuSE Security Announcement: SUSE-SA:2007:035 (Google Search)
XForce ISS Database: kernel-tcpv6synrecvsoc-dos(33176)
Common Vulnerability Exposure (CVE) ID: CVE-2007-1861
BugTraq ID: 23677
Bugtraq: 20070508 FLEA-2007-0016-1: kernel (Google Search)
Bugtraq: 20070615 rPSA-2007-0124-1 kernel xen (Google Search)
XForce ISS Database: kernel-netlinkfiblookup-dos(34014)
Common Vulnerability Exposure (CVE) ID: CVE-2007-2172
BugTraq ID: 23447
Debian Security Information: DSA-1356 (Google Search)
Debian Security Information: DSA-1363 (Google Search)
Debian Security Information: DSA-1504 (Google Search)
RedHat Security Advisories: RHSA-2007:0488
XForce ISS Database: kernel-dnfibprops-fibprops-dos(33979)
Common Vulnerability Exposure (CVE) ID: CVE-2007-2242
BugTraq ID: 23615
CERT/CC vulnerability note: VU#267289
FreeBSD Security Advisory: FreeBSD-SA-07:03.ipv6
OpenBSD Security Advisory: [3.9] 20070423 022: SECURITY FIX: April 23, 2007
OpenBSD Security Advisory: [4.0] 20070423 012: SECURITY FIX: April 23, 2007
SuSE Security Announcement: SUSE-SA:2007:051 (Google Search)
SuSE Security Announcement: SUSE-SA:2008:006 (Google Search)
XForce ISS Database: openbsd-ipv6-type0-dos(33851)
CopyrightCopyright (c) 2007 E-Soft Inc.

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