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Diffstat (limited to 'metadata/glsa/glsa-200312-07.xml')
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diff --git a/metadata/glsa/glsa-200312-07.xml b/metadata/glsa/glsa-200312-07.xml new file mode 100644 index 000000000000..cd9870a03b29 --- /dev/null +++ b/metadata/glsa/glsa-200312-07.xml @@ -0,0 +1,73 @@ +<?xml version="1.0" encoding="utf-8"?> +<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd"> +<glsa id="200312-07"> + <title>Two buffer overflows in lftp</title> + <synopsis> + Two buffer overflow problems are found in lftp that, in case the user visits + a malicious ftp server, could lead to malicious code being executed. + </synopsis> + <product type="ebuild">lftp</product> + <announced>2003-12-13</announced> + <revised count="2">2003-12-07</revised> + <bug>35866</bug> + <access>remote</access> + <affected> + <package name="net-ftp/lftp" auto="yes" arch="*"> + <vulnerable range="lt">2.6.10</vulnerable> + <unaffected range="ge">2.6.10</unaffected> + </package> + </affected> + <background> + <p> + lftp is a multithreaded command-line based FTP client. It allows you to + execute multiple commands simultaneously or in the background. If features + mirroring capabilities, resuming downloads, etc. + </p> + </background> + <description> + <p> + Two buffer overflows exist in lftp. Both can occur when the user connects to + a malicious web server using the HTTP or HTTPS protocol and issues lftp's + "ls" or "rels" commands. + </p> + <p> + Ulf Harnhammar explains: + </p> + <p> + Technically, the problem lies in the file src/HttpDir.cc and the + functions try_netscape_proxy() and try_squid_eplf(), which both + have sscanf() calls that take data of an arbitrary length and + store it in a char array with 32 elements. (Back in version 2.3.0, + the problematic code was located in some other function, but the + problem existed back then too.) Depending on the HTML document in the + specially prepared directory, buffers will be overflown in either one + function or the other. + </p> + </description> + <impact type="low"> + <p> + When a user issues "ls" or "rels" on a malicious server, the tftp + application can be tricked into running arbitrary code on the user his + machine. + </p> + </impact> + <workaround> + <p> + There is no workaround available. + </p> + </workaround> + <resolution> + <p> + All Gentoo users who have net-ftp/lftp installed should update to use + version 2.6.0 or higher using these commands: + </p> + <code> + # emerge sync + # emerge -pv '>=net-ftp/lftp-2.6.10' + # emerge '>=net-ftp/lftp-2.6.10' + # emerge clean</code> + </resolution> + <references> + <uri link="http://www.securityfocus.com/archive/1/347587/2003-12-13/2003-12-19/0">Initial report by Ulf Harnhammar</uri> + </references> +</glsa> |