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The remote Red Hat host is missing one or more security updates.
Updated kernel packages that fix multiple security issues and two bugs
are now available for Red Hat Enterprise Linux 5.3 Extended Update
This update has been rated as having important security impact by the
Red Hat Security Response Team.
The kernel packages contain the Linux kernel, the core of any Linux
This update fixes the following security issues :
* a flaw was found in the IPv6 Extension Header (EH) handling
implementation in the Linux kernel. The skb->dst data structure was
not properly validated in the ipv6_hop_jumbo() function. This could
possibly lead to a remote denial of service. (CVE-2007-4567,
* a flaw was found in each of the following Intel PRO/1000 Linux
drivers in the Linux kernel: e1000 and e1000e. A remote attacker using
packets larger than the MTU could bypass the existing fragment check,
resulting in partial, invalid frames being passed to the network
stack. These flaws could also possibly be used to trigger a remote
denial of service. (CVE-2009-4536, CVE-2009-4538, Important)
* a flaw was found in the Realtek r8169 Ethernet driver in the Linux
kernel. Receiving overly-long frames with a certain revision of the
network cards supported by this driver could possibly result in a
remote denial of service. (CVE-2009-4537, Important)
This update also fixes the following bugs :
* on certain hardware, the igb driver was unable to detect link
statuses correctly for Serializer-Deserializer (SERDES) interface
Ethernet ports. This may have caused problems for network interface
bonding, such as failover not occurring. (BZ#548023)
* in certain situations, kdump occasionally dumped a vmcore file with
no registers on Intel Itanium systems that were under high disk I/O
load. In these cases, this prevented the kernel stack backtrace in the
vmcore from being viewed with the crash utility. (BZ#542581)
Users should upgrade to these updated packages, which contain
backported patches to correct these issues. The system must be
rebooted for this update to take effect.
See also :
Update the affected packages.
Risk factor :
Critical / CVSS Base Score : 10.0
CVSS Temporal Score : 7.8
Public Exploit Available : true
Family: Red Hat Local Security Checks
Nessus Plugin ID: 63913 ()
Bugtraq ID: 375193752137523
CVE ID: CVE-2007-4567CVE-2009-4536CVE-2009-4537CVE-2009-4538
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