CVEvulnerability

CVE-2009-0778

7.1 HIGH Published 2009-03-12 Modified 2026-06-16 Official page ↗
Status
Modified
Published
2009-03-12
Last modified
2026-06-16
Assigner
[email protected]
CVSS 2.0 ([email protected])
7.1 HIGH — AV:N/AC:M/Au:N/C:N/I:N/A:C

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."

Affected configurations

• linux linux kernel (<= 2.6.24.7) • linux linux kernel 2.6.0 • linux linux kernel 2.6.1 • linux linux kernel 2.6.2 • linux linux kernel 2.6.3 • linux linux kernel 2.6.4 • linux linux kernel 2.6.5 • linux linux kernel 2.6.6 • linux linux kernel 2.6.7 • linux linux kernel 2.6.8 • linux linux kernel 2.6.8.1 • linux linux kernel 2.6.9 • linux linux kernel 2.6.10 • linux linux kernel 2.6.11 • linux linux kernel 2.6.11.1 • linux linux kernel 2.6.11.2 • linux linux kernel 2.6.11.3 • linux linux kernel 2.6.11.4 • linux linux kernel 2.6.11.5 • linux linux kernel 2.6.11.6 • linux linux kernel 2.6.11.7 • linux linux kernel 2.6.11.8 • linux linux kernel 2.6.11.9 • linux linux kernel 2.6.11.10 • linux linux kernel 2.6.11.11 • linux linux kernel 2.6.11.12 • linux linux kernel 2.6.12 • linux linux kernel 2.6.12.1 • linux linux kernel 2.6.12.2 • linux linux kernel 2.6.12.3 • linux linux kernel 2.6.12.4 • linux linux kernel 2.6.12.5 • linux linux kernel 2.6.12.6 • linux linux kernel 2.6.13 • linux linux kernel 2.6.13.1 • linux linux kernel 2.6.13.2 • linux linux kernel 2.6.13.3 • linux linux kernel 2.6.13.4 • linux linux kernel 2.6.13.5 • linux linux kernel 2.6.14 • linux linux kernel 2.6.14.1 • linux linux kernel 2.6.14.2 • linux linux kernel 2.6.14.3 • linux linux kernel 2.6.14.4 • linux linux kernel 2.6.14.5 • linux linux kernel 2.6.14.6 • linux linux kernel 2.6.14.7 • linux linux kernel 2.6.15 • linux linux kernel 2.6.15.1 • linux linux kernel 2.6.15.2 • linux linux kernel 2.6.15.3 • linux linux kernel 2.6.15.4 • linux linux kernel 2.6.15.5 • linux linux kernel 2.6.15.6 • linux linux kernel 2.6.15.7 • linux linux kernel 2.6.15.8 • linux linux kernel 2.6.15.9 • linux linux kernel 2.6.15.10 • linux linux kernel 2.6.15.11 • linux linux kernel 2.6.16 … and 178 more

References