NetSight
IP …
high7.1

CVE-2009-0778

The icmp_send function in net/ipv4/icmp.c in the Linux kernel before 2.6.25, when configured as a router with a REJECT route, does not properly manage the Prot…

Impact

The icmp_send function in net/ipv4/icmp.c in the Linux kernel before 2.6.25, when configured as a router with a REJECT route, does not properly manage the Protocol Independent Destination Cache (aka DST) in some situations involving transmission of an ICMP Host Unreachable message, which allows remote attackers to cause a denial of service (connectivity outage) by sending a large series of packets to many destination IP addresses within this REJECT route, related to an "rt_cache leak."

Affected products

VendorProductAffected versions
LinuxLinux Kernel
through 2.6.24.7
Versions 2.6.0, 2.6.1, 2.6.2, 2.6.3, 2.6.4
VmwareVcenter
Version 4.0
VmwareVirtualcenter
Versions 2.0.2, 2.5
VmwareServer
Version 2.0.0
VmwareEsx
Versions 2.5.5, 3.0.3, 3.5, 4.0
VmwareVma
Version 4.0

References