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."
Published: 2009-03-12
Score: 7.1 High
EPSS: 1.5% Low
KEV: No
Impact: n/a
Action: n/a
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Advisories
Source ID Title
EUVD EUVD EUVD-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 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."
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Linux Linux Kernel
Microsoft Windows
Redhat Enterprise Linux Rhel Eus
Vmware Esx Server Vcenter Virtualcenter Vma
cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2024-08-07T04:48:52.114Z

Reserved: 2009-03-03T00:00:00.000Z

Link: CVE-2009-0778

cve-icon Vulnrichment

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cve-icon NVD

Status : Deferred

Published: 2009-03-12T15:20:49.780

Modified: 2025-04-09T00:30:58.490

Link: CVE-2009-0778

cve-icon Redhat

Severity : Important

Publid Date: 2008-03-26T00:00:00Z

Links: CVE-2009-0778 - Bugzilla

cve-icon OpenCVE Enrichment

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