GLSA-200406-18 : gzip: Insecure creation of temporary files

This script is Copyright (C) 2004-2016 Tenable Network Security, Inc.

Synopsis :

The remote Gentoo host is missing one or more security-related

Description :

The remote host is affected by the vulnerability described in GLSA-200406-18
(gzip: Insecure creation of temporary files)

The script gzexe included with gzip contains a bug in the code that
handles tempfile creation. If the creation of a temp file fails when
using gzexe fails instead of bailing out it executes the command given
as argument.

Impact :

This could lead to privilege escalation by running commands under the
rights of the user running the self-extracting file.

Workaround :

There is no known workaround at this time. All users are encouraged to
upgrade to the latest available version.

See also :

Solution :

All gzip users should upgrade to the latest stable version:
# emerge sync
# emerge -pv '>=app-arch/gzip-1.3.3-r4'
# emerge '>=app-arch/gzip-1.3.3-r4'
Additionally, once the upgrade is complete, all self-extracting files
created with earlier versions gzexe should be recreated, since the
vulnerability is actually embedded in those executables.

Risk factor :

Critical / CVSS Base Score : 10.0

Family: Gentoo Local Security Checks

Nessus Plugin ID: 14529 (gentoo_GLSA-200406-18.nasl)

Bugtraq ID:

CVE ID: CVE-2004-0603

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