Referenced CVEs:

================================================== ========= Ubuntu Security Notice USN-519-1 September 25, 2007 elinks vulnerability CVE-2007-5034 ================================================== ========= A security issue affects the following Ubuntu releases: Ubuntu 6.06 LTS Ubuntu 6.10 Ubuntu 7.04 This advisory also applies to the corresponding versions of Kubuntu, Edubuntu, and Xubuntu. The problem can be corrected by upgrading your system to the following package versions: Ubuntu 6.06 LTS: elinks 0.10.6-1ubuntu3.2 Ubuntu 6.10: elinks 0.11.1-1ubuntu2.2 Ubuntu 7.04: elinks 0.11.1-1.2ubuntu2.2 In general, a standard system upgrade is sufficient to affect the necessary changes. Details follow: Kalle Olavi Niemitalo discovered that if elinks makes a POST request to an HTTPS URL through a proxy, information may be sent in clear-text between elinks and the proxy. Attackers with access to the network could steal sensitive information (such as passwords).