New libtirpc packages are available for Slackware 14.2 and -current to fix a security issue.

An update for rpcbind is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

[Updated 16 June 2017] The packages distributed with this errata have a bug that can cause the rpcbind utility to terminate unexpectedly at start. RHBA-2017:1436 was released on 13 June 2017 to address this issue.

The rpcbind utility is a server that converts Remote Procedure Call (RPC) program numbers into universal addresses. It must be running on the host to be able to make RPC calls on a server on that machine.

Security Fix(es) :

* 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)

Note that Tenable Network Security has attempted to extract the preceding description block directly from the corresponding Red Hat security advisory. Virtuozzo provides no description for VZLSA advisories. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

This update for libtirpc fixes the following issues :

  - CVE-2017-8779: crafted UDP packaged could lead rpcbind     to denial-of-service (bsc#1037559)

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

This update for rpcbind fixes the following issues :

  - CVE-2017-8779: A crafted UDP package could lead rcpbind     to remote denial-of-service (bsc#1037559)

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

An update for libtirpc is now available for Red Hat Enterprise Linux 6.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

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.

Security Fix(es) :

* 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)

Security Fix(es) :

  - 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)

This update for libtirpc and rpcbind fixes the following issues :

  - CVE-2017-8779: A crafted UDP package could lead rpcbind     to remote denial-of-service. (bsc#1037559)

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

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)

According to the version of the libtirpc package installed, the EulerOS installation on the remote host is affected by the following vulnerability :

  - 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)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

An update for libntirpc is now available for Red Hat Gluster Storage 3.2 for RHEL 6 and Red Hat Gluster Storage 3.2 for RHEL 7.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

This package contains a new implementation of the original libtirpc, transport-independent RPC (TI-RPC) library for NFS-Ganesha.

Security Fix(es) :

* 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)

Security fix for CVE-2017-8779

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website.
Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote MiracleLinux 4 host has a package installed that is affected by a vulnerability as referenced in the AXSA:2017-1657:02 advisory.

    The rpcbind utility is a server that converts RPC program numbers into     universal addresses.  It must be running on the host to be able to make     RPC calls on a server on that machine.
    Security issues fixed with this release:
    CVE-2017-8779     rpcbind through 0.2.4, LIBTIRPC through 1.0.1 and 1.0.2-rc through     1.0.2-rc3, and NTIRPC through 1.4.3 do not consider the maximum RPC     data size during memory allocation for XDR strings, which allows remote     attackers to cause a denial of service (memory consumption with no     subsequent free) via a crafted UDP packet to port 111, aka rpcbomb.

Tenable has extracted the preceding description block directly from the MiracleLinux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Published	Updated	Severity
101358	Slackware 14.2 / current : libtirpc (SSA:2017-191-01)	Nessus	Slackware Local Security Checks	7/11/2017	12/12/2025	high
101466	Virtuozzo 7 : rpcbind (VZLSA-2017-1262)	Nessus	Virtuozzo Local Security Checks	7/13/2017	12/11/2025	high
100241	SUSE SLED12 / SLES12 Security Update : libtirpc (SUSE-SU-2017:1306-1)	Nessus	SuSE Local Security Checks	5/17/2017	12/18/2025	high
100244	SUSE SLED12 / SLES12 Security Update : libtirpc (SUSE-SU-2017:1314-1)	Nessus	SuSE Local Security Checks	5/17/2017	12/18/2025	high
100289	SUSE SLED12 / SLES12 Security Update : rpcbind (SUSE-SU-2017:1328-1)	Nessus	SuSE Local Security Checks	5/19/2017	12/18/2025	high
100371	RHEL 6 : libtirpc (RHSA-2017:1268)	Nessus	Red Hat Local Security Checks	5/24/2017	12/18/2025	high
100372	Scientific Linux Security Update : libtirpc on SL6.x i386/x86_64 (20170523)	Nessus	Scientific Linux Local Security Checks	5/24/2017	12/18/2025	high
100569	SUSE SLES11 Security Update : libtirpc, rpcbind (SUSE-SU-2017:1468-1)	Nessus	SuSE Local Security Checks	6/1/2017	12/17/2025	high
100642	Amazon Linux AMI : rpcbind (ALAS-2017-841)	Nessus	Amazon Linux Local Security Checks	6/7/2017	12/17/2025	high
100690	EulerOS 2.0 SP2 : libtirpc (EulerOS-SA-2017-1097)	Nessus	Huawei Local Security Checks	6/9/2017	12/16/2025	high
100716	RHEL 6 / 7 : Storage Server (RHSA-2017:1395)	Nessus	Red Hat Local Security Checks	6/9/2017	12/16/2025	high
101609	Fedora 26 : rpcbind (2017-36cba32910)	Nessus	Fedora Local Security Checks	7/17/2017	12/10/2025	high
289319	MiracleLinux 4 : rpcbind-0.2.0-13.0.1.AXS4 (AXSA:2017-1657:02)	Nessus	Miracle Linux Local Security Checks	1/16/2026	1/16/2026	high

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