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CVE-2009-4272

Publication date 27 January 2010

Last updated 24 July 2024

Ubuntu priority

Low

Why this priority?

Cvss 3 Severity Score

7.5 · High

Score breakdown

A certain Red Hat patch for net/ipv4/route.c in the Linux kernel 2.6.18 on Red Hat Enterprise Linux (RHEL) 5 allows remote attackers to cause a denial of service (deadlock) via crafted packets that force collisions in the IPv4 routing hash table, and trigger a routing "emergency" in which a hash chain is too long. NOTE: this is related to an issue in the Linux kernel before 2.6.31, when the kernel routing cache is disabled, involving an uninitialized pointer and a panic.

Read the notes from the security team

Status

Package Ubuntu Release Status
linux 9.10 karmic
Not affected
9.04 jaunty
Not affected
8.10 intrepid
Not affected
8.04 LTS hardy
Not affected
6.06 LTS dapper Not in release
linux-source-2.6.15 9.10 karmic Not in release
9.04 jaunty Not in release
8.10 intrepid Not in release
8.04 LTS hardy Not in release
6.06 LTS dapper
Not affected

Notes

kees

Eugene noted it was Introduced via: c6153b5b77650879d78dec76414213c76dd8d574 v2.6.27-rc4~39^2~41 1080d709fb9d8cd4392f93476ee46a9d6ea05a5b v2.6.29-rc1~581^2~973 no Ubuntu kernels are affected.

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
linux

Severity score breakdown

Parameter Value
Base score 7.5 · High
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H