Virtuozzo 7 : libtirpc / libtirpc-devel (VZLSA-2017-1263)

This script is Copyright (C) 2017 Tenable Network Security, Inc.


Synopsis :

The remote Virtuozzo host is missing a security update.

Description :

An update for libtirpc 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.

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)

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.

See also :

http://www.nessus.org/u?28058abb
https://rhn.redhat.com/errata/RHSA-2017-1263.html

Solution :

Update the affected libtirpc / libtirpc-devel package.

Risk factor :

High / CVSS Base Score : 7.8
(CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C)
CVSS Temporal Score : 7.4
(CVSS2#E:F/RL:U/RC:ND)
Public Exploit Available : true

Family: Virtuozzo Local Security Checks

Nessus Plugin ID: 101467 ()

Bugtraq ID:

CVE ID: CVE-2017-8779

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