Access of Resource Using Incompatible Type ('Type Confusion') Affecting perf package, versions <0:4.18.0-240.1.1.el8_3


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating

    Threat Intelligence

    EPSS
    0.26% (67th percentile)

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  • Snyk ID SNYK-RHEL8-PERF-3858867
  • published 26 Jul 2021
  • disclosed 3 Nov 2020

How to fix?

Upgrade RHEL:8 perf to version 0:4.18.0-240.1.1.el8_3 or higher.
This issue was patched in RHSA-2020:4685.

NVD Description

Note: Versions mentioned in the description apply only to the upstream perf package and not the perf package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

A Red Hat only CVE-2020-12351 regression issue was found in the way the Linux kernel's Bluetooth implementation handled L2CAP packets with A2MP CID. This flaw allows a remote attacker in an adjacent range to crash the system, causing a denial of service or potentially executing arbitrary code on the system by sending a specially crafted L2CAP packet. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

CVSS Scores

version 3.1
Expand this section

NVD

8.8 high
  • Attack Vector (AV)
    Adjacent
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    High
  • Integrity (I)
    High
  • Availability (A)
    High
Expand this section

Red Hat

8.8 high