Heap-based Buffer Overflow Affecting kernel-tools package, versions <0:3.10.0-693.5.2.el7


Severity

Recommended
0.0
high
0
10

Based on CentOS security rating.

Threat Intelligence

EPSS
0.15% (53rd percentile)

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  • Snyk IDSNYK-CENTOS7-KERNELTOOLS-2093328
  • published26 Jul 2021
  • disclosed29 Mar 2017

Introduced: 29 Mar 2017

CVE-2017-7184  (opens in a new tab)
CWE-122  (opens in a new tab)

How to fix?

Upgrade Centos:7 kernel-tools to version 0:3.10.0-693.5.2.el7 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-tools package and not the kernel-tools package as distributed by Centos. See How to fix? for Centos:7 relevant fixed versions and status.

The xfrm_replay_verify_len function in net/xfrm/xfrm_user.c in the Linux kernel through 4.10.6 does not validate certain size data after an XFRM_MSG_NEWAE update, which allows local users to obtain root privileges or cause a denial of service (heap-based out-of-bounds access) by leveraging the CAP_NET_ADMIN capability, as demonstrated during a Pwn2Own competition at CanSecWest 2017 for the Ubuntu 16.10 linux-image-* package 4.8.0.41.52.

CVSS Scores

version 3.1