SB2022072112 - Multiple vulnerabilities in Linux kernel
Published: July 21, 2022 Updated: August 7, 2023
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 3 secuirty vulnerabilities.
1) Buffer overflow (CVE-ID: CVE-2022-2078)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a boundary error within the nft_set_desc_concat_parse() function in Linux kernel. A local user can trigger memory corruption and execute arbitrary code with elevated privileges.
2) Use-after-free (CVE-ID: CVE-2022-1973)
The vulnerability allows a local user to perform a denial of service attack.
The vulnerability exists due to a use-after-free error within the NTFS file system implementation in the Linux
kernel. A local user can trigger a use-after-free error and crash the system or gain access to sensitive information.
3) Double Free (CVE-ID: CVE-2022-34495)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary error within the rpmsg_probe() function in drivers/rpmsg/virtio_rpmsg_bus.c in Linux kernel. A local user can trigger a double free error in the virtio RPMSG bus driver and crash the system.
Remediation
Install update from vendor's website.