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Home >> Browse Vulnerability Assessment Database >> Ubuntu Local Security Checks >> USN148-1 : zlib vulnerability


Vulnerability Assessment Details

USN148-1 : zlib vulnerability

Vulnerability Assessment Summary
zlib vulnerability

Detailed Explanation for this Vulnerability Assessment

Summary :

These remote packages are missing security patches :
- zlib-bin
- zlib1g
- zlib1g-dev


Description :

Tavis Ormandy discovered that zlib did not properly verify data
streams. Decompressing certain invalid compressed files caused
corruption of internal data structures, which caused applications
which link to zlib to crash. Specially crafted input might even have
permited arbitrary code execution.

zlib is used by hundreds of server and client applications, so this
vulnerability could be exploited to cause Denial of Service attacks to
almost all services provided by an Ubuntu system.

Solution :

Upgrade to :
- zlib-bin-1.2.2-4ubuntu1.1 (Ubuntu 5.04)
- zlib1g-1.2.2-4ubuntu1.1 (Ubuntu 5.04)
- zlib1g-dev-1.2.2-4ubuntu1.1 (Ubuntu 5.04)



Network Security Threat Level: High


Networks Security ID:

Vulnerability Assessment Copyright: Ubuntu Security Notice (C) 2005 Canonical, Inc. / NASL script (C) 2005 Michel Arboi

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