VULNERABILITY

Oracle Linux: CVE-2017-8779: ELSA-2017-1267: rpcbind security update (IMPORTANT) (Multiple Advisories)

Try Surface Command Get a continuous 360° view of your attack surface
Back to Search

Oracle Linux: CVE-2017-8779: ELSA-2017-1267: rpcbind security update (IMPORTANT) (Multiple Advisories)

Severity
8
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:C)
Published
05/03/2017
Created
07/25/2018
Added
05/22/2017
Modified
01/07/2025

Description

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. 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.

Solution(s)

  • oracle-linux-upgrade-libtirpc
  • oracle-linux-upgrade-libtirpc-devel
  • oracle-linux-upgrade-rpcbind

References

insightVM

Advanced vulnerability management analytics and reporting.
Key Features
  • Lightweight Endpoint Agent
  • Live Dashboards
  • Real Risk Prioritization
  • IT-Integrated Remediation Projects
  • Cloud, Virtual, and Container Assessment
  • Integrated Threat Feeds
  • Easy-to-Use RESTful API
  • Automation-Assisted Patching
  • Automated Containment
Free InsightVM Trial View All Features

With Rapid7 live dashboards, I have a clear view of all the assets on my network, which ones can be exploited, and what I need to do in order to reduce the risk in my environment in real-time. No other tool gives us that kind of value and insight.

– Scott Cheney, Manager of Information Security, Sierra View Medical Center

;