Integer Underflow Affecting kernel-rt-debug-modules-extra package, versions <0:5.14.0-284.59.1.rt14.344.el9_2


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating

    Threat Intelligence

    EPSS
    0.04% (11th percentile)

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  • Snyk ID SNYK-RHEL9-KERNELRTDEBUGMODULESEXTRA-6501973
  • published 27 Mar 2024
  • disclosed 18 Dec 2023

How to fix?

Upgrade RHEL:9 kernel-rt-debug-modules-extra to version 0:5.14.0-284.59.1.rt14.344.el9_2 or higher.
This issue was patched in RHSA-2024:1533.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-rt-debug-modules-extra package and not the kernel-rt-debug-modules-extra package as distributed by RHEL. See How to fix? for RHEL:9 relevant fixed versions and status.

An out-of-bounds memory read flaw was found in receive_encrypted_standard in fs/smb/client/smb2ops.c in the SMB Client sub-component in the Linux Kernel. This issue occurs due to integer underflow on the memcpy length, leading to a denial of service.

CVSS Scores

version 3.1
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NVD

7.4 high
  • Attack Vector (AV)
    Adjacent
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    Low
  • User Interaction (UI)
    Required
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    High
  • Integrity (I)
    High
  • Availability (A)
    High
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Red Hat

6.8 medium
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SUSE

7.5 high