PT-2009-3389 · Linux+1 · Linux Kernel+1

Hector Herrera

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Published

2009-03-12

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Updated

2023-02-13

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CVE-2009-0778

CVSS v2.0

7.1

High

VectorAV:N/AC:M/Au:N/C:N/I:N/A:C
Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 2.6.25
Description The issue is related to the icmp send function in the Linux kernel, which does not properly manage the Protocol Independent Destination Cache (DST) when configured as a router with a REJECT route. This can be exploited by 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, resulting in an "rt cache leak."
Recommendations For Linux kernel versions prior to 2.6.25, update to version 2.6.25 or later to resolve the issue.

Exploit

Fix

Related Identifiers

CVE-2009-0778
RHSA-2009:0326
RHSA-2009_0326
RHSA-2010:0079

Affected Products

Linux Kernel
Red Hat