CVE-2021-34981 Affecting kernel-vanilla-base package, versions <4.12.14-150.78.1


Severity

Recommended
0.0
high
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.07% (31st percentile)

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  • Snyk IDSNYK-SLES150-KERNELVANILLABASE-2660336
  • published14 Apr 2022
  • disclosed7 Dec 2021

Introduced: 7 Dec 2021

CVE-2021-34981  (opens in a new tab)

How to fix?

Upgrade SLES:15.0 kernel-vanilla-base to version 4.12.14-150.78.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-vanilla-base package and not the kernel-vanilla-base package as distributed by SLES. See How to fix? for SLES:15.0 relevant fixed versions and status.

Linux Kernel Bluetooth CMTP Module Double Free Privilege Escalation Vulnerability. This vulnerability allows local attackers to escalate privileges on affected installations of Linux Kernel. An attacker must first obtain the ability to execute high-privileged code on the target system in order to exploit this vulnerability.

The specific flaw exists within the CMTP module. The issue results from the lack of validating the existence of an object prior to performing further free operations on the object. An attacker can leverage this vulnerability to escalate privileges and execute code in the context of the kernel. Was ZDI-CAN-11977.

CVSS Scores

version 3.1