CVE-2009-0778
Published: 12 March 2009
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."
Notes
| Author | Note |
|---|---|
| smb | The commit which (according to the commit message) introduced the problem was in v2.6.25-rc1, the fix in v2.6.25-rc8. So Dapper and Hardy are not affected. |
Priority
Status
| Package | Release | Status |
|---|---|---|
|
linux Launchpad, Ubuntu, Debian |
dapper |
Does not exist
|
| gutsy |
Does not exist
|
|
| hardy |
Not vulnerable
|
|
| intrepid |
Not vulnerable
(2.6.27)
|
|
| jaunty |
Not vulnerable
(2.6.28)
|
|
| upstream |
Needs triage
|
|
|
linux-source-2.6.15 Launchpad, Ubuntu, Debian |
dapper |
Not vulnerable
|
| gutsy |
Does not exist
|
|
| hardy |
Does not exist
|
|
| intrepid |
Does not exist
|
|
| jaunty |
Does not exist
|
|
| upstream |
Needs triage
|
|
|
linux-source-2.6.22 Launchpad, Ubuntu, Debian |
dapper |
Does not exist
|
| gutsy |
Ignored
(end of life, was needed)
|
|
| hardy |
Does not exist
|
|
| intrepid |
Does not exist
|
|
| jaunty |
Does not exist
|
|
| upstream |
Needs triage
|