SB2021051610 - Fedora 34 update for kernel
Published: May 16, 2021
Security Bulletin ID
SB2021051610
Severity
Low
Patch available
YES
Number of vulnerabilities
2
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 2 secuirty vulnerabilities.
1) Use-after-free (CVE-ID: CVE-2021-32606)
The vulnerability allows a local user to execute arbitrary code.
The vulnerability exists due to a use-after-free error within the isotp_bind(), isotp_getname() and isotp_setsockopt() functions in net/can/isotp.c. A local user can execute arbitrary code.
2) 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.