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Acceptance of Extraneous Untrusted Data With Trusted Data Affecting kernel-debug-core package, versions <0:4.18.0-240.el8

Severity

 Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating

    Threat Intelligence

    EPSS
    0.05% (21st percentile)

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  • Snyk ID SNYK-RHEL8-KERNELDEBUGCORE-3824434
  • published 26 Jul 2021
  • disclosed 27 Apr 2020
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Introduced: 27 Apr 2020

CVE-2020-10751 Open this link in a new tab
CWE-349 Open this link in a new tab

How to fix?

Upgrade RHEL:8 kernel-debug-core to version 0:4.18.0-240.el8 or higher.
This issue was patched in RHSA-2020:4431.

NVD Description

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

A flaw was found in the Linux kernels SELinux LSM hook implementation before version 5.7, where it incorrectly assumed that an skb would only contain a single netlink message. The hook would incorrectly only validate the first netlink message in the skb and allow or deny the rest of the messages within the skb with the granted permission without further processing.

References

CVSS Scores

version 3.1
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NVD

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

6.1 medium
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SUSE

6.1 medium