Bug 633145 – CVE-2010-3297 kernel: drivers/net/eql.c: reading uninitialized stack memory

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Bug 633145 - (CVE-2010-3297) CVE-2010-3297 kernel: drivers/net/eql.c: reading uninitialized stack memory

Summary:	CVE-2010-3297 kernel: drivers/net/eql.c: reading uninitialized stack memory

Status:	CLOSED ERRATA

Aliases:	CVE-2010-3297

Product:	Security Response
Classification:	Other
Component:	vulnerability (Show other bugs)
Sub Component:
Version:	unspecified
Hardware:	All Linux

Priority	low Severity low
Target Milestone:	---
Target Release:	---
Assigned To:	Red Hat Product Security
QA Contact:
Docs Contact:

URL:
Whiteboard:	reported=20100913,source=lkml,impact=...
Keywords:	Security

Depends On:	633146 633147
Blocks:
	Show dependency tree / graph

Reported:	2010-09-13 00:03 EDT by Eugene Teo (Security Response)
Modified:	2015-08-22 11:23 EDT (History)
CC List:	6 users (show)

See Also:
Fixed In Version:
Doc Type:	Bug Fix
Doc Text:
Story Points:	---
Clone Of:
Environment:
Last Closed:	2015-08-22 11:23:08 EDT
Type:	---
Regression:	---
Mount Type:	---
Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

Attachments	(Terms of Use)
Add an attachment (proposed patch, testcase, etc.)

External Trackers
Tracker	ID	Priority	Status	Summary	Last Updated
Red Hat Product Errata	RHSA-2010:0771	normal	SHIPPED_LIVE	Moderate: kernel-rt security and bug fix update	2010-10-14 11:30:14 EDT

Groups: None (edit)

Description Eugene Teo (Security Response) 2010-09-13 00:03:21 EDT

Description of problem:
http://lkml.org/lkml/2010/9/11/168
The EQL_GETMASTRCFG device ioctl allows unprivileged users to read 16 bytes of uninitialized stack memory, because the "master_name" member of the master_config_t struct declared on the stack in eql_g_master_cfg() is not altered or zeroed before being copied back to the user.

Acknowledgements:

Red Hat would like to thank Dan Rosenberg for reporting this issue.

Comment 2 John Kacur 2010-09-17 08:18:19 EDT

This is 44467187dc22fdd33a1a06ea0ba86ce20be3fe3c
in David Miller's git repo

Comment 3 Eugene Teo (Security Response) 2010-10-13 00:44:45 EDT

Upstream commit:
http://git.kernel.org/linus/44467187dc22fdd33a1a06ea0ba86ce20be3fe3c

Comment 4 errata-xmlrpc 2010-10-14 11:30:34 EDT

This issue has been addressed in following products:

  MRG for RHEL-5

Via RHSA-2010:0771 https://rhn.redhat.com/errata/RHSA-2010-0771.html

Comment 5 Eugene Teo (Security Response) 2010-11-02 01:01:25 EDT

Statement:

This issue did not affect the versions of Linux kernel as shipped with Red Hat Enterprise Linux 3, 4, and 5 as they did not include support for equalizer load-balancer for serial network interfaces. This was addressed in Red Hat Enterprise Linux Enterprise MRG via https://rhn.redhat.com/errata/RHSA-2010-0771.html.

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