Gentoo: 201611-05 Normal: tnftp Arbitrary Code Execution Advisory
gentoo
November 15, 2016
tnftp is vulnerable to remote code execution if output file is not specified.
Summary
The fetch_url function in usr.bin/ftp/fetch.c allows remote attackersto execute arbitrary commands via a | (pipe) character at the end of an HTTP redirect.
Resolution
All tnftp users should upgrade to the latest version:
# emerge --sync
# emerge --ask --verbose --oneshot ">=net-ftp/tnftp-20141104"
References
[ 1 ] CVE-2014-8517 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2014-8517
Availability
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
https://security.gentoo.org/glsa/201611-05
style>.gentoo_availability{display:block;}
Concerns
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 https://bugs.gentoo.org.
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Severity: Normal
Title: tnftp: Arbitrary code execution
Date: November 15, 2016
Bugs: #527302
ID: 201611-05
Background
tnftp is a NetBSD FTP client with several advanced features.
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Affected Packages
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 net-ftp/tnftp < 20141104 >= 20141104
Impact
=====
A remote attacker could possibly execute arbitrary code with the
privileges of the process.
Workaround
There is no known workaround at this time.
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