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Gentoo Linux Security Advisory GLSA 200404-04
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http://security.gentoo.org
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Severity: Normal
Title: Multiple vulnerabilities in sysstat
Date: April 06, 2004=20
Bugs: #45159
ID: 200404-04

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Synopsis
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Multiple vulnerabilities in the way sysstat handles symlinks may allow
an attacker to execute arbitrary code or overwrite arbitrary files

Background
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sysstat is a package containing a number of performance monitoring
utilities for Linux, including sar, mpstat, iostat and sa tools

Affected packages
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Package / Vulnerable / Unaffected
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app-admin/sysstat < 5.0.2 >=3D 5.0.2

Description
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There are two vulnerabilities in the way sysstat handles symlinks:

1. The isag utility, which displays sysstat data in a graphical
format, creates a temporary file in an insecure manner.

2. Two scripts in the sysstat package, post and trigger, create
temporary files in an insecure manner.

Impact
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Both vulnerabilities may allow an attacker to overwrite arbitrary files
under the permissions of the user executing any of the affected=20
utilities.

Workaround
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A workaround is not currently known for this issue. All users are
advised to upgrade to the latest version of the affected package.

Resolution
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Systat users should upgrade to version 4.2 or later:

# emerge sync

# emerge -pv ">=3Dapp-admin/sysstat-5.0.2"
# emerge ">=3Dapp-admin/sysstat-5.0.2"

References
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[ 1 ] http://cve.mitre.org/cgi-bin/cvename...DCAN-2004-0107
[ 2 ] http://cve.mitre.org/cgi-bin/cvename...DCAN-2004-0108

Concerns?
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Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users machines is of utmost
importance to us. Any security concerns should be addressed to
security@gentoo.org or alternatively, you may file a bug at
http://bugs.gentoo.org.

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