Red Hat Errata System 5.3 2011-03-22T12:51:28 Red Hat Enterprise Linux 5 The kernel packages contain the Linux kernel, the core of any Linux operating system. 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, Important) * 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 network cards supported by this driver could possibly result in a remote denial of service. (CVE-2009-4537, Important) 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. Important Copyright 2010 Red Hat, Inc. CVE-2007-4567 CVE-2009-4536 CVE-2009-4537 CVE-2009-4538 CVE-2007-4567 kernel: ipv6_hop_jumbo remote system crash CVE-2009-4537 kernel: r8169 issue reported at 26c3 CVE-2009-4538 kernel: e1000e frame fragment issue CVE-2009-4536 kernel: e1000 issue reported at 26c3 cpe:/o:redhat:enterprise_linux