Libtirpc and RPCBind: Denial of Service

Libtirpc and RPCBind: Denial of Service A vulnerability has been found in Libtirpc and RPCBind which may allow a remote attacker to cause a Denial of Service condition. RPCBind,Libtirpc 2017-06-06 2017-06-06 617472 remote 0.2.4-r1 0.2.4-r1 1.0.1-r1 1.0.1-r1

The RPCBind utility is a server that converts RPC program numbers into universal addresses.

Libtirpc is a port of Suns Transport-Independent RPC library to Linux.

It was found that due to the way RPCBind uses libtirpc (libntirpc), a memory leak can occur when parsing specially crafted XDR messages.

A remote attacker could send thousands of messages to RPCBind, possibly resulting in a Denial of Service condition.

There is no known workaround at this time.

All RPCBind users should upgrade to the latest version:


      # emerge --sync
      # emerge --ask --oneshot --verbose ">=net-nds/rpcbind-0.2.4-r1"

All Libtirpc users should upgrade to the latest version:


      # emerge --sync
      # emerge --ask --oneshot --verbose ">=net-libs/libtirpc-1.0.1-r1"

CVE-2017-8779 BlueKnight whissi