漏洞类别：RedHat
漏洞等级： 
漏洞信息
The libtirpc packages contain SunLib's implementation of transport-independent remote procedure call (TI-RPC) documentation, which includes a library required by programs in the nfs-utils and rpcbind packages.
It was found that due to the way rpcbind uses libtirpc (libntirpc), a memory leak can occur when parsing specially crafted XDR messages. An attacker sending thousands of messages to rpcbind could cause its memory usage to grow without bound, eventually causing it to be terminated by the OOM killer. (CVE-2017-8779)
Affected Products
Red Hat Enterprise Linux Server 6 x86_64
Red Hat Enterprise Linux Server 6 i386
Red Hat Enterprise Linux Workstation 6 x86_64
Red Hat Enterprise Linux Workstation 6 i386
Red Hat Enterprise Linux Desktop 6 x86_64
Red Hat Enterprise Linux Desktop 6 i386
Red Hat Enterprise Linux for IBM z Systems 6 s390x
Red Hat Enterprise Linux for Power, big endian 6 ppc64
Red Hat Enterprise Linux for Scientific Computing 6 x86_64
漏洞危害
An attacker sending thousands of messages to rpcbind could cause its memory usage to grow without bound, eventually causing it to be terminated by the OOM killer.
解决方案
Upgrade to the latest packages which contain a patch. Refer to Applying Package Updates to RHEL system for details.
Refer to Red Hat security advisory RHSA-2017:1268 to address this issue and obtain more information.
Patch:
Following are links for downloading patches to fix the vulnerabilities:
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