SB2023082071 - Fedora 38 update for xen
Published: August 20, 2023
Security Bulletin ID
SB2023082071
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Untrusted Pointer Dereference (CVE-ID: CVE-2022-42335)
CWE-ID: CWE-822 - Untrusted Pointer Dereference
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:U/U:Green
The vulnerability allows a malicious guest to escalate privileges on the system.
The vulnerability exists due to an arbitrary pointer dereference. A malicious guest running in shadow mode and having a PCI device passed through can execute arbitrary code on the hypervisor.
Remediation
Install update from vendor's website.