CVE-2009-4272

2010-01-2700:00:00

ubuntu.com

CVSS2

7.8

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

AV:N/AC:L/Au:N/C:N/I:N/A:C

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS

0.028

Percentile

90.6%

JSON

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.

Notes

Author	Note
kees	Eugene noted it was Introduced via: c6153b5b77650879d78dec76414213c76dd8d574 v2.6.27-rc4~39^2~41 1080d709fb9d8cd4392f93476ee46a9d6ea05a5b v2.6.29-rc1~581^2~973 no Ubuntu kernels are affected.