Bug 231071 – CVE-2007-1217 Overflow in CAPI subsystem

Bugzilla will be upgraded to version 5.0. The upgrade date is tentatively scheduled for 2 December 2018, pending final testing and feedback.

Bug 231071 - CVE-2007-1217 Overflow in CAPI subsystem

Summary:	CVE-2007-1217 Overflow in CAPI subsystem

Status:	CLOSED ERRATA

Aliases:	None

Product:	Red Hat Enterprise Linux 2.1
Classification:	Red Hat
Component:	kernel (Show other bugs)
Sub Component:
Version:	2.1
Hardware:	ia64 Linux

Priority	medium Severity medium
Target Milestone:	---
Target Release:	---
Assigned To:	Don Howard
QA Contact:	Martin Jenner
Docs Contact:

URL:
Whiteboard:	impact=moderate,source=vendorsec,repo...
Keywords:	Security

Duplicates:	402761 (view as bug list)
Depends On:
Blocks:
	Show dependency tree / graph

Reported:	2007-03-05 17:18 EST by Marcel Holtmann
Modified:	2007-11-30 17:06 EST (History)
CC List:	3 users (show)

See Also:
Fixed In Version:	RHSA-2007-0673
Doc Type:	Bug Fix
Doc Text:
Story Points:	---
Clone Of:
Environment:
Last Closed:	2007-08-08 14:54:33 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)
BZ 230563 RHEL 2.1AS ia64 patch, only compilation tested, need to test with real hardware (17.26 KB, patch) 2007-04-06 06:59 EDT, Radovan Augustin	no flags	Details \| Diff
CVS repository patch, adds CONFIG_CAPI_TRACE option (383 bytes, text/x-patch) 2007-04-06 07:00 EDT, Radovan Augustin	no flags	Details
CVS repository patch, adds CONFIG_CAPI_TRACE option (383 bytes, patch) 2007-04-06 07:00 EDT, Radovan Augustin	no flags	Details \| Diff
Add an attachment (proposed patch, testcase, etc.)

External Trackers
Tracker	ID	Priority	Status	Summary	Last Updated
Red Hat Product Errata	RHSA-2007:0673	normal	SHIPPED_LIVE	Important: kernel security update	2007-08-08 14:54:27 EDT

Groups: None (edit)

Description Marcel Holtmann 2007-03-05 17:18:31 EST

The bufprint routine used by capi_cmsg2str does an unbounded vsprintf into a
8192 byte buffer, perhaps hoping it's big enough.

If the content of that vsprintf can be controlled by remote peers, this may lead
to a remote security hole for daemons using CAPI (pppd-capi-plugin,
asterisk-chan-capi, capi4hylafax, ...). Or a DoS.

If the content of that vsprintf can be controlled by local users making use of a
system service (such as sending a fax, making a phone call, ...) that uses CAPI,
this is a privilege escalation or remote authenticated user security hole, or a DoS.

Comment 3 Radovan Augustin 2007-04-06 06:59:23 EDT

Created attachment 151863 [details]
BZ 230563 RHEL 2.1AS ia64 patch, only compilation tested, need to test with real hardware

Comment 4 Radovan Augustin 2007-04-06 07:00:27 EDT

Created attachment 151865 [details]
CVS repository patch, adds CONFIG_CAPI_TRACE option

Comment 5 Radovan Augustin 2007-04-06 07:00:34 EDT

Created attachment 151866 [details]
CVS repository patch, adds CONFIG_CAPI_TRACE option

Comment 6 Don Howard 2007-07-07 02:36:19 EDT

A patch addressing this issue has been included in kernel-2.4.18-e.65.

Comment 9 Red Hat Bugzilla 2007-08-08 14:54:33 EDT

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-2007-0673.html

Comment 10 Jan Lieskovsky 2007-11-29 09:05:41 EST

*** Bug 402761 has been marked as a duplicate of this bug. ***

Note You need to log in before you can comment on or make changes to this bug.