Improper Ownership Management Affecting perf package, versions <0:4.18.0-425.19.2.el8_7


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating

    Threat Intelligence

    EPSS
    0.23% (62nd percentile)

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  • Snyk ID SNYK-RHEL8-PERF-3368310
  • published 22 Mar 2023
  • disclosed 24 Jan 2023

How to fix?

Upgrade RHEL:8 perf to version 0:4.18.0-425.19.2.el8_7 or higher.
This issue was patched in RHSA-2023:1566.

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 flaw was found in the Linux kernel, where unauthorized access to the execution of the setuid file with capabilities was found in the Linux kernel’s OverlayFS subsystem in how a user copies a capable file from a nosuid mount into another mount. This uid mapping bug allows a local user to escalate their privileges on the system.

CVSS Scores

version 3.1
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NVD

7.8 high
  • Attack Vector (AV)
    Local
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    Low
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    High
  • Integrity (I)
    High
  • Availability (A)
    High
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Red Hat

7 high
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SUSE

7.8 high