NetSight
high7.5

CVE-2009-4272

A certain Red Hat patch for net/ipv4/route.c in the Linux kernel 2.6.18 on Red Hat Enterprise Linux (RHEL) 5 allows remote attackers to cause a denial of servi…

Impact

A certain Red Hat patch for net/ipv4/route.c in the Linux kernel 2.6.18 on Red Hat Enterprise Linux (RHEL) 5 allows remote attackers to cause a denial of service (deadlock) via crafted packets that force collisions in the IPv4 routing hash table, and trigger a routing "emergency" in which a hash chain is too long. NOTE: this is related to an issue in the Linux kernel before 2.6.31, when the kernel routing cache is disabled, involving an uninitialized pointer and a panic.

Affected products

VendorProductAffected versions
LinuxLinux Kernel
Version 2.6.18
RedhatVirtualization
Version 5.0
RedhatEnterprise Linux Desktop
Version 5.0
RedhatEnterprise Linux Eus
Version 5.4
RedhatEnterprise Linux Server
Version 5.0
RedhatEnterprise Linux Workstation
Version 5.0

Weakness classification

References