Bug 86599

Summary:	CAN-2003-0107 zlib buffer overflow
Product:	Red Hat Enterprise Linux 2.1	Reporter:	Mark J. Cox <mjc>
Component:	zlib	Assignee:	Jeff Johnson <jbj>
Status:	CLOSED ERRATA	QA Contact:	Jay Turner <jturner>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	2.1	CC:	srevivo
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2003-05-29 08:34:49 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 Mark J. Cox 2003-03-26 09:24:11 UTC

The function gzprintf within zlib, when called with a string longer than
Z_PRINTF_BUFZISE (= 4096 bytes), can overflow without giving a warning.

zlib-1.1.4 and earlier exhibit this behavior. There are no known exploits
of the gzprintf overrun, and only a few programs, including rpm2html
and gimp-print, are known to use the gzprintf function.

The problem has been fixed by checking the length of the output string
within gzprintf. 

This is CAN-2003-0107 and will be RHSA-2003:081

Comment 1 Jeff Johnson 2003-03-28 19:32:48 UTC

Needinfo so I don't have to stare at the duplicate bug.

Comment 2 Mark J. Cox 2003-05-29 08:34:49 UTC

Fixed by http://rhn.redhat.com/errata/RHSA-2003-081.html