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Category:   Application (Generic)  >   Zlib Vendors:   GNU [multiple authors]
(OpenBSD Issues Fix) zlib Buffer Overflow in 'inftrees.c' Lets Remote Users Deny Service
SecurityTracker Alert ID:  1014560
SecurityTracker URL:  http://securitytracker.com/id/1014560
CVE Reference:   CVE-2005-1849   (Links to External Site)
Updated:  Jul 23 2005
Original Entry Date:  Jul 23 2005
Impact:   Denial of service via local system, Denial of service via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 1.2.2
Description:   A vulnerability was reported in zlib. A remote user may be able to cause denial of service conditions.

The zlib library contains a buffer overflow that can be triggered when opening an invalid file, potentially causing the affected application to crash.

Markus Oberhumer is credited with discovering this vulnerability.

Impact:   A remote or local user may be able to cause an affected application to crash.
Solution:   OpenBSD has issued the following fixes:

ftp://ftp.openbsd.org/pub/OpenBSD/patches/3.6/common/020_libz.patch
ftp://ftp.openbsd.org/pub/OpenBSD/patches/3.7/common/005_libz.patch

Vendor URL:  www.zlib.org/ (Links to External Site)
Cause:   Boundary error
Underlying OS:  UNIX (OpenBSD)
Underlying OS Comments:  3.6, 3.7

Message History:   This archive entry is a follow-up to the message listed below.
Jul 21 2005 zlib Buffer Overflow in 'inftrees.c' Lets Remote Users Deny Service



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