(OpenBSD Issues Fix) zlib Buffer Overflow in 'inftrees.c' Lets Remote Users Deny Service
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SecurityTracker Alert ID: 1014560
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SecurityTracker URL: http://securitytracker.com/id?1014560
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CVE Reference: CAN-2005-1849
(Links to External Site)
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Updated: Jul 23 2005
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Original Entry Date: Jul 23 2005
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Impact: Denial of service via local system, Denial of service via network
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Fix Available: Yes
Vendor Confirmed: Yes
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Advisory: OpenBSD Errata
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Version(s): 1.2.2
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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.
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Impact: A remote or local user may be able to cause an affected application to crash.
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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
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Vendor URL: www.zlib.org/ (Links to External Site)
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Cause: Boundary error
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Underlying OS: UNIX (OpenBSD)
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Underlying OS Comments: 3.6, 3.7
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Message History:
This archive entry is a follow-up to the message listed below.
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Source Message Contents
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Date: Fri, 22 Jul 2005 22:09:00 -0400
Subject: [none]
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> SECURITY FIX: July 21, 2005 All architectures
> A buffer overflow has been found in compress(3) which may be exploitable.
> Please note that this fixes a different buffer overflow than the previous zlib patch.
> A source code patch exists which remedies this problem.
ftp://ftp.openbsd.org/pub/OpenBSD/patches/3.7/common/005_libz.patch
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