CVE-2021-26342 Affecting kernel-firmware-bluetooth package, versions <20220509-150400.4.5.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.04% (15th percentile)

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  • Snyk IDSNYK-SLES154-KERNELFIRMWAREBLUETOOTH-2855592
  • published3 Jun 2022
  • disclosed2 Jun 2022

Introduced: 2 Jun 2022

CVE-2021-26342  (opens in a new tab)

How to fix?

Upgrade SLES:15.4 kernel-firmware-bluetooth to version 20220509-150400.4.5.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-firmware-bluetooth package and not the kernel-firmware-bluetooth package as distributed by SLES. See How to fix? for SLES:15.4 relevant fixed versions and status.

In SEV guest VMs, the CPU may fail to flush the Translation Lookaside Buffer (TLB) following a particular sequence of operations that includes creation of a new virtual machine control block (VMCB). The failure to flush the TLB may cause the microcode to use stale TLB translations which may allow for disclosure of SEV guest memory contents. Users of SEV-ES/SEV-SNP guest VMs are not impacted by this vulnerability.

CVSS Scores

version 3.1