Execution with Unnecessary Privileges Affecting kernel-rt package, versions <0:3.10.0-1160.rt56.1131.el7


Severity

Recommended
high

Based on Red Hat Enterprise Linux security rating

    Threat Intelligence

    EPSS
    0.11% (46th percentile)

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  • Snyk ID SNYK-RHEL7-KERNELRT-1531047
  • published 26 Jul 2021
  • disclosed 20 Sep 2019

How to fix?

Upgrade RHEL:7 kernel-rt to version 0:3.10.0-1160.rt56.1131.el7 or higher.
This issue was patched in RHSA-2020:4062.

NVD Description

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

ieee802154_create in net/ieee802154/socket.c in the AF_IEEE802154 network module in the Linux kernel through 5.3.2 does not enforce CAP_NET_RAW, which means that unprivileged users can create a raw socket, aka CID-e69dbd4619e7.

CVSS Scores

version 3.1
Expand this section

NVD

3.3 low
  • Attack Vector (AV)
    Local
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    Low
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    None
  • Integrity (I)
    Low
  • Availability (A)
    None