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Family: Red Hat Local Security Checks --> Category: infos

RHSA-2005-474: bzip Vulnerability Scan

Vulnerability Scan Summary
Check for the version of the bzip packages

Detailed Explanation for this Vulnerability Test

Updated bzip2 packages that fix multiple issues are now available.

This update has been rated as having low security impact by the Red Hat
Security Response Team.

Bzip2 is a data compressor.

A bug was found in the way bzgrep processes file names. If a user can be
tricked into running bzgrep on a file with a carefully crafted file name,
arbitrary commands could be executed as the user running bzgrep. The Common
Vulnerabilities and Exposures project ( has assigned the name
CVE-2005-0758 to this issue.

A bug was found in the way bzip2 modifies file permissions during
decompression. If a possible hacker has write access to the directory into which
bzip2 is decompressing files, it is possible for them to modify permissions
on files owned by the user running bzip2 (CVE-2005-0953).

A bug was found in the way bzip2 decompresses files. It is possible for an
attacker to create a specially crafted bzip2 file which will cause bzip2 to
cause a denial of service (by filling disk space) if decompressed by a
victim (CVE-2005-1260).

Users of Bzip2 should upgrade to these updated packages, which contain
backported patches to correct these issues.

Solution :
Threat Level: High

Click HERE for more information and discussions on this network vulnerability scan.


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