Rapid7 Vulnerability & Exploit Database

CentOS Linux: CVE-2017-15129: Important: kernel-alt security, bug fix, and enhancement update (Multiple Advisories)

Free InsightVM Trial No Credit Card Necessary
Watch Demo See how it all works
Back to Search

CentOS Linux: CVE-2017-15129: Important: kernel-alt security, bug fix, and enhancement update (Multiple Advisories)

Severity
5
CVSS
(AV:L/AC:L/Au:N/C:N/I:N/A:C)
Published
01/09/2018
Created
08/29/2019
Added
08/28/2019
Modified
02/09/2024

Description

A use-after-free vulnerability was found in network namespaces code affecting the Linux kernel before 4.14.11. The function get_net_ns_by_id() in net/core/net_namespace.c does not check for the net::count value after it has found a peer network in netns_ids idr, which could lead to double free and memory corruption. This vulnerability could allow an unprivileged local user to induce kernel memory corruption on the system, leading to a crash. Due to the nature of the flaw, privilege escalation cannot be fully ruled out, although it is thought to be unlikely.

Solution(s)

  • centos-upgrade-kernel
  • centos-upgrade-kernel-rt

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

;