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Test ID:1.3.6.1.4.1.25623.1.0.871815
Category:Red Hat Local Security Checks
Title:RedHat Update for libtirpc RHSA-2017:1263-01
Summary:The remote host is missing an update for the 'libtirpc'; package(s) announced via the referenced advisory.
Description:Summary:
The remote host is missing an update for the 'libtirpc'
package(s) announced via the referenced advisory.

Vulnerability Insight:
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)

Affected Software/OS:
libtirpc on Red Hat Enterprise Linux Server (v. 7)

Solution:
Please Install the Updated Packages.

CVSS Score:
7.8

CVSS Vector:
AV:N/AC:L/Au:N/C:N/I:N/A:C

Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2017-8779
BugTraq ID: 98325
http://www.securityfocus.com/bid/98325
Debian Security Information: DSA-3845 (Google Search)
http://www.debian.org/security/2017/dsa-3845
https://www.exploit-db.com/exploits/41974/
https://security.gentoo.org/glsa/201706-07
http://openwall.com/lists/oss-security/2017/05/03/12
http://openwall.com/lists/oss-security/2017/05/04/1
https://github.com/drbothen/GO-RPCBOMB
https://github.com/guidovranken/rpcbomb/
https://guidovranken.wordpress.com/2017/05/03/rpcbomb-remote-rpcbind-denial-of-service-patches/
RedHat Security Advisories: RHBA-2017:1497
https://access.redhat.com/errata/RHBA-2017:1497
RedHat Security Advisories: RHSA-2017:1262
https://access.redhat.com/errata/RHSA-2017:1262
RedHat Security Advisories: RHSA-2017:1263
https://access.redhat.com/errata/RHSA-2017:1263
RedHat Security Advisories: RHSA-2017:1267
https://access.redhat.com/errata/RHSA-2017:1267
RedHat Security Advisories: RHSA-2017:1268
https://access.redhat.com/errata/RHSA-2017:1268
RedHat Security Advisories: RHSA-2017:1395
https://access.redhat.com/errata/RHSA-2017:1395
http://www.securitytracker.com/id/1038532
https://usn.ubuntu.com/3759-1/
https://usn.ubuntu.com/3759-2/
CopyrightCopyright (C) 2017 Greenbone Networks GmbH

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