GLSA-201706-07 : Libtirpc and RPCBind: Denial of Service

High Nessus Plugin ID 100650


The remote Gentoo host is missing one or more security-related patches.


The remote host is affected by the vulnerability described in GLSA-201706-07 (Libtirpc and RPCBind: Denial of Service)

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

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

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'

See Also

Plugin Details

Severity: High

ID: 100650

File Name: gentoo_GLSA-201706-07.nasl

Version: 3.3

Type: local

Published: 2017/06/07

Updated: 2019/04/10

Dependencies: 12634

Risk Information

Risk Factor: High

CVSS v2.0

Base Score: 7.8

Temporal Score: 6.1

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

Temporal Vector: CVSS2#E:POC/RL:OF/RC:C

CVSS v3.0

Base Score: 7.5

Temporal Score: 6.7

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:gentoo:linux:libtirpc, p-cpe:/a:gentoo:linux:rpcbind, cpe:/o:gentoo:linux

Required KB Items: Host/local_checks_enabled, Host/Gentoo/release, Host/Gentoo/qpkg-list

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2017/06/06

Reference Information

CVE: CVE-2017-8779

GLSA: 201706-07