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- # This script was automatically generated from
- # http://www.gentoo.org/security/en/glsa/glsa-200410-03.xml
- # It is released under the Nessus Script Licence.
- # The messages are release under the Creative Commons - Attribution /
- # Share Alike license. See http://creativecommons.org/licenses/by-sa/2.0/
- #
- # Avisory is copyright 2001-2004 Gentoo Foundation, Inc.
- # GLSA2nasl Convertor is copyright 2004 Michel Arboi
-
- if (! defined_func('bn_random')) exit(0);
-
- if (description)
- {
- script_id(15424);
- script_version("$Revision: 1.1 $");
- script_xref(name: "GLSA", value: "200410-03");
-
- desc = 'The remote host is affected by the vulnerability described in GLSA-200410-03
- (NetKit-telnetd: buffer overflows in telnet and telnetd)
-
-
- A possible buffer overflow exists in the parsing of option strings by the
- telnet daemon, where proper bounds checking is not applied when writing to
- a buffer. Additionaly, another possible buffer overflow has been found by
- Josh Martin in the handling of the environment variable HOME.
-
- Impact
-
- A remote attacker sending a specially-crafted options string to the telnet
- daemon could be able to run arbitrary code with the privileges of the user
- running the telnet daemon, usually root. Furthermore, an attacker could
- make use of an overlong HOME variable to cause a buffer overflow in the
- telnet client, potentially leading to the local execution of arbitrary
- code.
-
- Workaround
-
- There is no known workaround at this time.
-
- References:
- http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2001-0554
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=264846
-
-
- Solution:
- All NetKit-telnetd users should upgrade to the latest version:
- # emerge sync
- # emerge -pv ">=net-misc/netkit-telnetd-0.17-r4"
- # emerge ">=net-misc/netkit-telnetd-0.17-r4"
-
-
- Risk factor : High
- ';
- script_description(english: desc);
- script_copyright(english: "(C) 2004 Michel Arboi");
- script_name(english: "[GLSA-200410-03] NetKit-telnetd: buffer overflows in telnet and telnetd");
- script_category(ACT_GATHER_INFO);
- script_family(english: "Gentoo Local Security Checks");
- script_dependencies("ssh_get_info.nasl");
- script_require_keys('Host/Gentoo/qpkg-list');
- script_summary(english: 'NetKit-telnetd: buffer overflows in telnet and telnetd');
- exit(0);
- }
-
- include('qpkg.inc');
- if (qpkg_check(package: "net-misc/netkit-telnetd", unaffected: make_list("ge 0.17-r4"), vulnerable: make_list("le 0.17-r3")
- )) { security_hole(0); exit(0); }
-