1. Gentoo Linux Security Advisory
| Advisory Reference | GLSA 200503-36 / netkit-telnetd |
| Release Date | March 31, 2005 |
| Latest Revision | March 31, 2005: 01 |
| Impact | normal |
| Exploitable | remote |
| Package | Vulnerable versions | Unaffected versions | Architecture(s) |
| net-misc/netkit-telnetd | < 0.17-r6 | >= 0.17-r6 | All supported architectures |
Related bugreports: #87211
The netkit-telnetd telnet client is vulnerable to a buffer overflow, which could allow a malicious telnet server operator to execute arbitrary code.
netkit-telnetd provides standard Linux telnet client and server.
A buffer overflow has been identified in the slc_add_reply() function of netkit-telnetd client, where a large number of SLC commands can overflow a fixed size buffer.
Successful explotation would require a vulnerable user to connect to an attacker-controlled host using telnet, potentially executing arbitrary code with the permissions of the telnet user.
There is no known workaround at this time.
All netkit-telnetd users should upgrade to the latest version:
Code Listing 3.1: Resolution |
# emerge --sync # emerge --ask --oneshot --verbose ">=net-misc/netkit-telnetd-0.17-r6" |