SB2022112243 - Multiple vulnerabilities in Red Hat Virtualization 4 for RHEL 8
Published: November 22, 2022 Updated: December 15, 2022
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 5 secuirty vulnerabilities.
1) Integer overflow (CVE-ID: CVE-2022-3515)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to integer overflow within the CRL parser in libksba. A remote attacker can pass specially crafted data to the application, trigger an integer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
2) Memory leak (CVE-ID: CVE-2022-38177)
The vulnerability allows a remote attacker to perform DoS attack on the target system.
The vulnerability exists due memory leak in the DNSSEC verification code for the ECDSA algorithm. A remote attacker can spoof the target resolver with responses that have a malformed ECDSA signature and perform denial of service attack.
3) Memory leak (CVE-ID: CVE-2022-38178)
The vulnerability allows a remote attacker to perform DoS attack on the target system.
The vulnerability exists due memory leak in the DNSSEC verification code for the EdDSA algorithm. A remote attacker can spoof the target resolver with responses that have a malformed EdDSA signature and perform denial of service attack.
4) Use-after-free (CVE-ID: CVE-2022-40674)
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error in the doContent() function in xmlparse.c. A remote attacker can pass specially crafted input to the application that is using the affected library, trigger a use-after-free error and execute arbitrary code on the system.
Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.
5) Improper Authorization (CVE-ID: CVE-2022-41974)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to incorrectly implemented authorization process within multipathd daemon. A local unprivileged user can bypass build-in authorization and execute privileged commands on the system.
Remediation
Install update from vendor's website.