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Family: Gentoo Local Security Checks --> Category: infos

[GLSA-200406-18] gzip: Insecure creation of temporary files Vulnerability Scan

Vulnerability Scan Summary
gzip: Insecure creation of temporary files

Detailed Explanation for this Vulnerability Test
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.


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


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

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.

Threat Level: Medium

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


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