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Vulnerability Assessment & Network Security Forums |
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If through a vulnerability assessment, a network security issue is detected for the vulnerability below, applying the appropriate security patches in a timely matter is very important. If you have detected that your system has already been compromised, following CERT's Network Security recovery document will assist with recommended steps for system recovery. Home >> Browse Vulnerability Assessment Database >> Gentoo Local Security Checks >> [GLSA-200504-01] telnet-bsd: Multiple buffer overflows Vulnerability Assessment Details
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[GLSA-200504-01] telnet-bsd: Multiple buffer overflows |
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telnet-bsd: Multiple buffer overflows Detailed Explanation for this Vulnerability Assessment The remote host is affected by the vulnerability described in GLSA-200504-01 (telnet-bsd: Multiple buffer overflows) A buffer overflow has been identified in the env_opt_add() function of telnet-bsd, where a response requiring excessive escaping can cause a heap-based buffer overflow. Another issue has been identified in the slc_add_reply() function, where a large number of SLC commands can overflow a fixed size buffer. Impact Successful exploitation would require a vulnerable user to connect to a possible hacker-controlled host using telnet, potentially executing arbitrary code with the permissions of the telnet user. Workaround There is no known workaround at this time. References: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-0468 http://www.idefense.com/application/poi/display?id=221&type=vulnerabilities http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-0469 http://www.idefense.com/application/poi/display?id=220&type=vulnerabilities Solution: All telnet-bsd users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=net-misc/telnet-bsd-1.0-r1" Network Security Threat Level: Medium Networks Security ID: Vulnerability Assessment Copyright: (C) 2005 Michel Arboi |
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