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Security update for BZIP2


(Last modified: 29JUL2002)

solutions Security update for BZIP2 SuSE Linux Maintenance Web (6e8cc5a72d3d746459f4f497b93e7d55)

Applies to

Product(s): SuSE Linux Database Server
SuSE Linux Admin-CD for Firewall
SuSE Linux Enterprise Server 7 for IBM zSeries
SuSE eMail Server III
SuSE Linux Enterprise Server 7 for PowerPC

SuSE Linux Enterprise Server 7 for IA32
SuSE Linux Enterprise Server 7 for IA64
SuSE Linux Enterprise Server 7 for S/390 and zSeries
SuSE Linux Enterprise Server for S/390
SuSE eMail Server 3.1
SuSE Linux Office Server
SuSE Firewall Adminhost VPN
SuSE Linux Connectivity Server

Package: bzip
Release: 20020729
Obsoletes: none


This update should be installed.



Problem description

This update fixes some security bugs of the bzip2 utility:
When decompressing archive the utility failed to use the O_EXCL flag which could lead to the utility overwriting files without warning.
In addition the utility did not securely create new files causing a race condition between creating the file and setting the correct permissions.
When compressing a file pointed to by a symbolic link, the
bzip2 utility incorrectly stored the permissions of
the symbolic link instead of the file. This may result in potentially
lax file permissions (rwxr-xr-x), causing the decompressed file to be


Please install the updates provided at the location noted below.

Installation notes

This update is provided as an RPM package that can easily be installed onto a running system by using this command:
rpm -Uvh bzip.rpm

links to download packages

Download Source Packages

Download the source code of the patches for maintained products.


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