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


Severity

Recommended
high

Based on Rocky Linux security rating.

Threat Intelligence

EPSS
0.08% (37th percentile)

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  • Snyk IDSNYK-ROCKY8-KERNELRTKVM-3195816
  • published5 Jan 2023
  • disclosed4 Mar 2022

Introduced: 4 Mar 2022

CVE-2021-3744  (opens in a new tab)
CWE-401  (opens in a new tab)

How to fix?

Upgrade Rocky-Linux:8 kernel-rt-kvm to version 0:4.18.0-372.9.1.rt7.166.el8 or higher.
This issue was patched in RLSA-2022:1975.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-rt-kvm package and not the kernel-rt-kvm package as distributed by Rocky-Linux. See How to fix? for Rocky-Linux: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

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