BNC contains a buffer overflow vulnerability that may lead to Denial of Service and execution of arbitrary code.
| Package | Arch | Vulnerable | Unaffected |
|---|---|---|---|
| net-irc/bnc | * | < 2.9.1 | >= 2.9.1 |
BNC (BouNCe) is an IRC proxy server.
Leon Juranic discovered that BNC fails to do proper bounds checking when checking server response.
An attacker could exploit this to cause a Denial of Service and potentially execute arbitary code with the permissions of the user running BNC.
There is no known workaround at this time.
All BNC users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=net-irc/bnc-2.9.1"
BNC contains an input validation flaw which might allow a remote attacker to issue arbitrary IRC related commands.
| Package | Arch | Vulnerable | Unaffected |
|---|---|---|---|
| net-irc/bnc | * | < 2.8.9 | >= 2.8.9 |
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:
# emerge sync # emerge -pv ">=net-irc/bnc-2.8.9" # emerge ">=net-irc/bnc-2.8.9"