SB2021061827 - SUSE update for the Linux Kernel (Live Patch 39 for SLE 12 SP3) 

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Main Vulnerability Database SB2021061827

SB2021061827 - SUSE update for the Linux Kernel (Live Patch 39 for SLE 12 SP3)

Published: June 18, 2021

Security Bulletin ID SB2021061827
Severity
Low
Patch available
YES
Number of vulnerabilities 3
Exploitation vector Local access
Highest impact Code execution

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 3 secuirty vulnerabilities.


1) Use-after-free (CVE-ID: CVE-2020-0429)

The vulnerability allows a local privileged user to execute arbitrary code.

In l2tp_session_delete and related functions of l2tp_core.c, there is possible memory corruption due to a use after free. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-152735806


2) Improper Initialization (CVE-ID: CVE-2021-28688)

The vulnerability allows a local user to perform a denial of service attack.

The vulnerability exists due to improper initialization of pointers such that subsequent cleanup code wouldn't use uninitialized or stale values. A local user can perform a denial of service attack.


3) Use-after-free (CVE-ID: CVE-2021-33034)

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a use-after-free error in net/bluetooth/hci_event.c when destroying an hci_chan. A local user can escalate privileges on the system.



Remediation

Install update from vendor's website.

References