Bug 243262 (CVE-2007-2525)

Summary:	CVE-2007-2525 PPPoE socket PPPIOCGCHAN denial of service
Product:	[Other] Security Response	Reporter:	Marcel Holtmann <holtmann>
Component:	vulnerability	Assignee:	Jason Baron <jbaron>
Status:	CLOSED ERRATA	QA Contact:	Martin Jenner <mjenner>
Severity:	high	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	jbaron, kevin_walton, knoel, security-response-team
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	RHSA-2007-0488	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2007-06-25 18:05:52 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Marcel Holtmann 2007-06-08 10:20:19 UTC

A vulnerability has been reported in the Linux Kernel, which potentially can be
exploited by malicious, local users to cause a DoS (Denial of Service).

The vulnerability is caused due to a memory leak when releasing PPPoE sockets
after they are connected, but before the "PPPIOCGCHAN" ioctl is called. This can
be exploited to cause a DoS due to memory exhaustion.

Comment 1 Jason Baron 2007-06-12 15:49:45 UTC

 committed in stream rhel‑4.5.z build 55.0.1

Comment 3 Joshua Giles 2007-06-21 22:23:16 UTC

Jason, 

Reproducer please?

Comment 5 Red Hat Bugzilla 2007-06-25 18:05:52 UTC

An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on the solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.

http://rhn.redhat.com/errata/RHSA-2007-0488.html