Vulnerability 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."
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | <= 2.6.24.7 |
| Vmware | Vcenter | 4.0 |
| Vmware | Virtualcenter | 2.0.2 |
| Microsoft | Windows | - |
| Vmware | Server | 2.0.0 |
| Vmware | Esx | 2.5.5 |
| Vmware | Vma | 4.0 |
| Redhat | Enterprise Linux | 5.0 |
References
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=
- http://openwall.com/lists/oss-security/2009/03/11/2Mailing ListThird Party Advisory
- http://secunia.com/advisories/33758Broken Link
- http://secunia.com/advisories/37471Broken Link
- http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.25Broken Link
- http://www.redhat.com/support/errata/RHSA-2009-0326.htmlBroken Link
- http://www.securityfocus.com/archive/1/507985/100/0/threadedThird Party AdvisoryVDB Entry
- http://www.securityfocus.com/bid/34084Third Party AdvisoryVDB Entry
- http://www.securitytracker.com/id?1021958Third Party AdvisoryVDB Entry
- http://www.vmware.com/security/advisories/VMSA-2009-0016.htmlThird Party Advisory
- http://www.vupen.com/english/advisories/2009/3316Broken Link
- https://bugzilla.redhat.com/show_bug.cgi?id=485163ExploitIssue TrackingThird Party Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/49199Third Party AdvisoryVDB Entry
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Third Party Advisory
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Third Party Advisory
FAQ
What is CVE-2009-0778?
CVE-2009-0778 is a vulnerability with a CVSS score of 7.1 (HIGH). 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 D...
How severe is CVE-2009-0778?
CVE-2009-0778 has been rated HIGH with a CVSS base score of 7.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2009-0778?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel, Vmware Vcenter, Vmware Virtualcenter, Microsoft Windows, Vmware Server.