SB2023032352 - Red Hat Enterprise Linux 9.0 Extended Update Support update for kpatch-patch
Published: March 23, 2023 Updated: May 13, 2024
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 5 secuirty vulnerabilities.
1) Use-after-free (CVE-ID: CVE-2022-3564)
The vulnerability allows an attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error within the l2cap_reassemble_sdu() function in net/bluetooth/l2cap_core.c. An attacker with physical access to device can trigger a use-after-free error and execute arbitrary code on the system.
2) Stack-based buffer overflow (CVE-ID: CVE-2022-4378)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a boundary error within the __do_proc_dointvec() function. A local user can trigger a stack-based buffer overflow and execute arbitrary code with elevated privileges.
3) Use-after-free (CVE-ID: CVE-2022-4379)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a use-after-free error within the __nfs42_ssc_open() function in fs/nfs/nfs4file.c. A remote attacker can perform a denial of service (DoS) attack.
4) Integer overflow (CVE-ID: CVE-2023-0179)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to an integer overflow within the nft_payload_copy_vlan() function in Linux kernel Netfilter. A local user can trigger an integer overflow and execute arbitrary code with elevated privileges.
5) Use-after-free (CVE-ID: CVE-2023-0266)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the snd_ctl_elem_read() function in the Linux kernel sound subsystem. A local user can trigger a use-after-free error and execute arbitrary code on the system.
Note, the vulnerability is being actively exploited in the wild.
Remediation
Install update from vendor's website.