1. Gentoo Linux Security Advisory
| Advisory Reference | GLSA 200410-13 / bnc |
| Release Date | October 15, 2004 |
| Latest Revision | May 22, 2006: 02 |
| Impact | normal |
| Exploitable | remote |
| Package | Vulnerable versions | Unaffected versions | Architecture(s) |
| net-irc/bnc | < 2.8.9 | >= 2.8.9 | All supported architectures |
Related bugreports: #66912
BNC contains an input validation flaw which might allow a remote attacker to issue arbitrary IRC related commands.
BNC is an IRC proxying server
A flaw exists in the input parsing of BNC where part of the sbuf_getmsg() function handles the backspace character incorrectly.
A remote user could issue commands using fake authentication credentials and possibly gain access to scripts running on the client side.
There is no known workaround at this time.
All BNC users should upgrade to the latest version:
Code Listing 3.1: Resolution |
# emerge sync # emerge -pv ">=net-irc/bnc-2.8.9" # emerge ">=net-irc/bnc-2.8.9" |