CVE-2009-0778

CVE Details

Release Date:	2009-03-12
Impact:	Important	What is this?

Description

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.

See more information about CVE-2009-0778 from MITRE CVE dictionary and NIST NVD

NOTE: The following CVSS metrics and score provided are preliminary and subject to review.

CVSS v2 metrics

Base Score:	7.1
Vector String:	AV:N/AC:M/Au:N/C:N/I:N/A:C
Version:	2.0
Attack Vector:	Network
Attack Complexity:	Medium
Authentication:	None
Confidentiality Impact:	None
Integrity Impact:	None
Availability Impact:	Complete

Errata information

Platform	Errata	Release Date
Oracle Linux version 5 (kernel)	ELSA-2009-0326	2009-04-01
Oracle Linux version 5 (ocfs2-2.6.18-128.1.6.0.1.el5)	ELSA-2009-0326	2009-04-01
Oracle Linux version 5 (oracleasm-2.6.18-128.1.6.0.1.el5)	ELSA-2009-0326	2009-04-01