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Memory Leak Affecting kernel-rt-debug-modules-extra package, versions <0:4.18.0-372.9.1.rt7.166.el8

Severity

 Recommended
high

Based on CentOS security rating

    Threat Intelligence

    EPSS
    0.08% (34th percentile)

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  • Snyk ID SNYK-CENTOS8-KERNELRTDEBUGMODULESEXTRA-1969422
  • published 13 Sep 2021
  • disclosed 20 Aug 2021
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Introduced: 20 Aug 2021

CVE-2021-3744 Open this link in a new tab
CWE-401 Open this link in a new tab

How to fix?

Upgrade Centos:8 kernel-rt-debug-modules-extra to version 0:4.18.0-372.9.1.rt7.166.el8 or higher.

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 Centos. See How to fix? for Centos:8 relevant fixed versions and status.

A memory leak flaw was found in the Linux kernel in the ccp_run_aes_gcm_cmd() function in drivers/crypto/ccp/ccp-ops.c, which allows attackers to cause a denial of service (memory consumption). This vulnerability is similar with the older CVE-2019-18808.

References

CVSS Scores

version 3.1
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NVD

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

5.5 medium
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SUSE

5.5 medium