Use After Free Affecting kernel-rt-debug package, versions <0:3.10.0-862.rt56.804.el7


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

Exploit Maturity
Proof of Concept
EPSS
0.74% (72nd percentile)

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  • Snyk IDSNYK-RHEL7-KERNELRTDEBUG-4849694
  • published26 Jul 2021
  • disclosed5 Dec 2017

Introduced: 5 Dec 2017

CVE-2017-8824  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade RHEL:7 kernel-rt-debug to version 0:3.10.0-862.rt56.804.el7 or higher.
This issue was patched in RHSA-2018:0676.

NVD Description

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

The dccp_disconnect function in net/dccp/proto.c in the Linux kernel through 4.14.3 allows local users to gain privileges or cause a denial of service (use-after-free) via an AF_UNSPEC connect system call during the DCCP_LISTEN state.

CVSS Base Scores

version 3.1