Bug 173342

Summary:	CVE-2005-3662 netpbm off by one error
Product:	Red Hat Enterprise Linux 3	Reporter:	Josh Bressers <bressers>
Component:	netpbm	Assignee:	Jindrich Novy <jnovy>
Status:	CLOSED ERRATA	QA Contact:	Ben Levenson <benl>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	3.0	CC:	pknirsch
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:	impact=moderate,public=20051112,reported=20051112,source=vendorsec
Fixed In Version:	RHSA-2005-843	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2005-12-20 14:39:03 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 Josh Bressers 2005-11-16 14:19:29 UTC

Netpbm off my one error

The latest release of pnmtopng fixed an off by one error in the
alphas_of_color[] array.

--- pnmtopng-2.38/pnmtopng.c    2002-06-16 17:38:48.000000000 -0700
+++ pnmtopng-2.39/pnmtopng.c    2005-11-12 19:40:45.000000000 -0800
@@ -389,8 +419,8 @@
int alpha_rows;
int alpha_cols;
int alpha_trans;
-  gray *alphas_of_color[MAXCOLORS];
-  int alphas_of_color_cnt[MAXCOLORS];
+  gray *alphas_of_color[MAXCOLORS+1];
+  int alphas_of_color_cnt[MAXCOLORS+1];
int alphas_first_index[MAXCOLORS+1];
int mapping[MAXCOLORS];      /* mapping[old_index] = new_index */
int colors;


This issue also affects RHEL2.1

Comment 1 Jindrich Novy 2005-11-17 17:45:51 UTC

The fix is now applied in both 3 and 2.1.
The patch isn't cleanly applicable though.

Comment 5 Red Hat Bugzilla 2005-12-20 14:39:03 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-2005-843.html