Zlib Compression Library gzprintf() Buffer Overrun Vulnerability

BID:6913

Info

Zlib Compression Library gzprintf() Buffer Overrun Vulnerability

Bugtraq ID: 6913
Class: Boundary Condition Error
CVE: CVE-2003-0107
Remote: Yes
Local: No
Published: Feb 23 2003 12:00AM
Updated: Apr 06 2007 02:52AM
Credit: The discovery of this vulnerability has been credited to Richard Kettlewell <[email protected]>.
Vulnerable: zlib zlib 1.1.4
+ Caldera OpenLinux Server 3.1.1
+ Caldera OpenLinux Server 3.1
+ Caldera OpenLinux Workstation 3.1.1
+ Caldera OpenLinux Workstation 3.1
+ GLT GLT 0.6
+ NetBSD NetBSD 1.6
+ NetBSD NetBSD 1.5.3
+ NetBSD NetBSD 1.5.2
+ NetBSD NetBSD 1.5.1
+ NetBSD NetBSD 1.5
- NullSoft Winamp 2.79
+ OpenPKG OpenPKG 1.2
+ OpenPKG OpenPKG 1.1
+ Redhat Enterprise Linux AS 2.1 IA64
 + Redhat Enterprise Linux AS 2.1
 + Redhat Enterprise Linux ES 2.1 IA64
 + Redhat Enterprise Linux ES 2.1
 + Redhat Enterprise Linux WS 2.1 IA64
 + Redhat Enterprise Linux WS 2.1
 + Redhat Linux Advanced Work Station 2.1
+ Sun Cobalt Qube 3
+ Sun Cobalt Qube3 4000WG
+ Sun Cobalt Qube3 Japanese 4000WGJ
+ Sun Cobalt Qube3 Japanese w/ Caching and RAID 4100WGJ
+ Sun Cobalt Qube3 Japanese w/Caching 4010WGJ
+ Sun Cobalt Qube3 w/ Caching and RAID 4100WG
+ Sun Cobalt Qube3 w/Caching 4010WG
+ Sun Cobalt RaQ 4
+ Sun Cobalt RaQ XTR
+ Sun Cobalt RaQ XTR 3500R
+ Sun Cobalt RaQ XTR Japanese 3500R-ja
+ Sun Cobalt RaQ4 3001R
+ Sun Cobalt RaQ4 Japanese RAID 3100R-ja
+ Sun Cobalt RaQ4 RAID 3100R
+ Sun Linux 5.0
VMWare ESX Server 3.0.1
VMWare ESX Server 3.0
Sun SunOS 5.9 _x86
Sun SunOS 5.9
SGI ProPack 2.3
SGI ProPack 2.2.1
SCO Open Server 5.0.7
SCO Open Server 5.0.6
SCO Open Server 5.0.5
Not Vulnerable:

Discussion

Zlib Compression Library gzprintf() Buffer Overrun Vulnerability

A buffer-overrun vulnerability has been reported in the Zlib compression library. Due to the use of 'vsprintf()' by an internal Zlib function, an attacker can cause memory to become corrupted. This buffer overrun occurs becuase the software fails to check the boundaries of user-supplied data given to the 'gzprintf()' function.

Successful exploitation of this vulnerability may allow an attacker to execute arbitrary instructions.

Note that only Zlib 1.1.4 has been reported vulnerable to this issue. It is not yet known whether earlier versions are also affected.

Solution / Fix

Zlib Compression Library gzprintf() Buffer Overrun Vulnerability

Solution:
Please see the references for more information.


zlib zlib 1.1.4

Sun SunOS 5.9

Sun SunOS 5.9 _x86

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