SB2023060666 - Red Hat Virtualization 4 for Red Hat Enterprise Linux 8 update for redhat-release-virtualization-host and redhat-virtualization-host
Published: June 6, 2023
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 6 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) Use of a broken or risky cryptographic algorithm (CVE-ID: CVE-2022-38023)
The vulnerability allows a remote attacker to compromise the target system.
The vulnerability exists due to security features bypass in Netlogon RPC. A remote attacker can bypass the Netlogon cryptography feature for signing and sealing traffic during Netlogon authentication.
3) Use-after-free (CVE-ID: CVE-2022-41222)
The vulnerability allows a local user to gain access to sensitive information.
The vulnerability exists due to a use-after-free error caused by a stale TLB in mm/mremap.c, because an rmap lock is not held during a PUD move. A local user can gain access to sensitive information.
4) 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.
5) Use-after-free (CVE-ID: CVE-2023-0461)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the Upper Level Protocol (ULP) subsystem in Linux kernel caused by improper handling of sockets entering the LISTEN state in certain protocols. A local user can trigger a use-after-free error and execute arbitrary code with elevated privileges.
6) Input validation error (CVE-ID: CVE-2023-1668)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input when processing IP packets. A remote attacker can send specially crafted IP packets with "ip proto" set to "0" and perform a denial of service (DoS) attack.
Successful exploitation of the vulnerability requires that flow rules contain 'set' actions on other fields in the IP protocol header.
Remediation
Install update from vendor's website.