From 4f2d7949f03e1c198bc888f2d05f421d35c57e21 Mon Sep 17 00:00:00 2001 From: V3n3RiX Date: Mon, 9 Oct 2017 18:53:29 +0100 Subject: reinit the tree, so we can have metadata --- metadata/glsa/glsa-200312-07.xml | 73 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 73 insertions(+) create mode 100644 metadata/glsa/glsa-200312-07.xml (limited to 'metadata/glsa/glsa-200312-07.xml') diff --git a/metadata/glsa/glsa-200312-07.xml b/metadata/glsa/glsa-200312-07.xml new file mode 100644 index 000000000000..90346eccf602 --- /dev/null +++ b/metadata/glsa/glsa-200312-07.xml @@ -0,0 +1,73 @@ + + + + Two buffer overflows in lftp + + 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. + + lftp + 2003-12-13 + 2003-12-07: 2 + 35866 + remote + + + 2.6.10 + 2.6.10 + + + +

+ 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. +

+
+ +

+ 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. +

+

+ Ulf Harnhammar explains: +

+

+ 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. +

+
+ +

+ 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. +

+
+ +

+ There is no workaround available. +

+
+ +

+ All Gentoo users who have net-ftp/lftp installed should update to use + version 2.6.0 or higher using these commands: +

+ + # emerge sync + # emerge -pv '>=net-ftp/lftp-2.6.10' + # emerge '>=net-ftp/lftp-2.6.10' + # emerge clean +
+ + Initial report by Ulf Harnhammar + +
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