Fedora: lftp Buffer overflow vulnerability
Summary
LFTP is a sophisticated ftp/http file transfer program. Like bash, it
has job control and uses the readline library for input. It has
bookmarks, built-in mirroring, and can transfer several files in
parallel. It is designed with reliability in mind.
Ulf Härnhammar found a remotely-triggerable buffer overflow in lftp.
An attacker could create a carefully crafted directory on a website
such that, if a user connects to that directory using the lftp client
and subsequently issues a 'ls' or 'rels' command, the attacker could
execute arbitrary code on the users machine. The Common
Vulnerabilities and Exposures project (cve.mitre.org) has assigned
the name CAN-2003-0963 to this issue.
Users of lftp are advised to upgrade to these erratum packages, which
upgrade lftp to a version which is not vulnerable to this issue.
Red Hat would like to thank Ulf Härnhammar for discovering and
alerting us to this issue.
- update to 2.6.10, which folds in the previous patches
- configure with --with-debug so that we get useful debug info
* Tue Dec 09 2003 Nalin Dahyabhai <nalin@RedHat.com> 2.6.9-1
- include patch based on patch from Ulf Härnhammar to fix unsafe use of
sscanf when reading http directory listings (CAN-2003-0963)
- include patch based on patch from Ulf Härnhammar to fix compile warnings
modified based on input from Solar Designer
* Mon Dec 08 2003 Nalin Dahyabhai <nalin@RedHat.com>
- update to 2.6.9
b36e31c19e088ee086afc9c42dacd471 SRPMS/lftp-2.6.10-1.src.rpm
1a6ab3a0b3df685cc1354bf4740a7201 i386/lftp-2.6.10-1.i386.rpm
7c70562d0c91db1b15d21d0f56f32ea0 i386/debug/lftp-debuginfo-2.6.10-1.i386.rpm
This update can also be installed with the Update Agent; you can
launch the Update Agent with the 'up2date' command.
Change Log
References
Update Instructions
