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RHEL 6 / 7 : rpcbind (RHSA-2016:0005)

high Nessus Plugin ID 87805

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Synopsis

The remote Red Hat host is missing one or more security updates.

Description

Updated rpcbind packages that fix one security issue are now available for Red Hat Enterprise Linux 6 and 7.

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

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.

A use-after-free flaw related to the PMAP_CALLIT operation and TCP/UDP connections was discovered in rpcbind. A remote attacker could possibly exploit this flaw to crash the rpcbind service by performing a series of UDP and TCP calls. (CVE-2015-7236)

All rpcbind users are advised to upgrade to these updated packages, which contain a backported patch to correct this issue. If the rpcbind service is running, it will be automatically restarted after installing this update.

Solution

Update the affected rpcbind and / or rpcbind-debuginfo packages.

See Also

https://access.redhat.com/errata/RHSA-2016:0005

https://access.redhat.com/security/cve/cve-2015-7236

Plugin Details

Severity: High

ID: 87805

File Name: redhat-RHSA-2016-0005.nasl

Version: 2.15

Type: local

Agent: unix

Published: 1/8/2016

Updated: 10/24/2019

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:rpcbind-debuginfo, cpe:/o:redhat:enterprise_linux:7, cpe:/o:redhat:enterprise_linux:7.3, cpe:/o:redhat:enterprise_linux:7.4, cpe:/o:redhat:enterprise_linux:7.5, cpe:/o:redhat:enterprise_linux:6, cpe:/o:redhat:enterprise_linux:6.7, cpe:/o:redhat:enterprise_linux:7.7, cpe:/o:redhat:enterprise_linux:7.2, p-cpe:/a:redhat:enterprise_linux:rpcbind, cpe:/o:redhat:enterprise_linux:7.6

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu

Exploit Ease: No known exploits are available

Patch Publication Date: 1/7/2016

Vulnerability Publication Date: 10/1/2015

Reference Information

CVE: CVE-2015-7236

RHSA: 2016:0005