CVE-2009-0778 Affecting kernel-xen-devel package, versions <0:2.6.18-128.1.6.0.1.el5


Severity

Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
1.45% (87th percentile)

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  • Snyk IDSNYK-ORACLE5-KERNELXENDEVEL-2450666
  • published10 Apr 2022
  • disclosed12 Mar 2009

Introduced: 12 Mar 2009

CVE-2009-0778  (opens in a new tab)

How to fix?

Upgrade Oracle:5 kernel-xen-devel to version 0:2.6.18-128.1.6.0.1.el5 or higher.
This issue was patched in ELSA-2009-0326.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-xen-devel package and not the kernel-xen-devel package as distributed by Oracle. See How to fix? for Oracle:5 relevant fixed versions and status.

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 Scores

version 3.1