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."
Analysis
Analysis and contextual insights are available on OpenCVE Cloud.
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| n/a | n/a | affected |
|
Configuration 1 [-]
|
Configuration 2 [-]
| AND |
|
Configuration 3 [-]
|
Configuration 4 [-]
| AND |
|
| Package | CPE | Advisory | Released Date |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | |||
| kernel-0:2.6.18-128.1.6.el5 | cpe:/o:redhat:enterprise_linux:5 | RHSA-2009:0326 | 2009-04-01T00:00:00Z |
| Red Hat Enterprise Linux 5.2 Z Stream | |||
| kernel-0:2.6.18-92.1.35.el5 | cpe:/o:redhat:rhel_eus:5.2 | RHSA-2010:0079 | 2010-02-02T00:00:00Z |
No data available yet.
Remediation
No vendor fix or workaround currently provided.
Additional remediation guidance may be available on OpenCVE Cloud.
Tracking
Sign in to view the affected projects.
Advisories
| Source | ID | Title |
|---|---|---|
 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." |
References
History
No history.
MITRE
Status: PUBLISHED
Assigner: redhat
Published:
Updated: 2024-08-07T04:48:52.114Z
Reserved: 2009-03-03T00:00:00.000Z
Link: CVE-2009-0778
Vulnrichment
No data.
NVD
Status : Modified
Published: 2009-03-12T15:20:49.780
Modified: 2026-04-23T00:35:47.467
Link: CVE-2009-0778
Redhat
OpenCVE Enrichment
No data.
Weaknesses