SB2024092468 - SUSE update for xen
Published: September 24, 2024
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 5 vulnerabilities.
1) Processor optimization removal or modification of security-critical code (CVE-ID: CVE-2024-2201)
CWE-ID: CWE-1037 - Processor optimization removal or modification of security-critical code
CVSSv4: CVSS:4.0/AV:A/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 native branch history injection on x86 systems. A malicious guest can infer the contents of arbitrary host memory, including memory assigned to other guests and compromise the affected system.
2) Improper locking (CVE-ID: CVE-2024-31143)
CWE-ID: CWE-667 - Improper Locking
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:H/E:U/U:Green
The vulnerability allows a malicious guest to perform a denial of service (DoS) attack.
The vulnerability exists due to double unlock in x86 guest IRQ handling. An optional feature of PCI MSI called "Multiple Message" allows a device to use multiple consecutive interrupt vectors. A malicious guest can crash the hypervisor.
3) Improper error handling (CVE-ID: CVE-2024-31145)
CWE-ID: CWE-388 - Error Handling
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a malicious guest to escalate privileges on the system.
The vulnerability exists due to improper error handling in x86 IOMMU identity mapping. A malicious guest can access memory regions related to other guests or the hypervisor.
4) Resource management error (CVE-ID: CVE-2024-31146)
CWE-ID: CWE-399 - Resource Management Errors
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a malicious guest to escalate privileges on the system.
The vulnerability exists due to improper management of shared resources when using PCI pass-through. A malicious guest can escalate privileges on the system.
5) Deadlock (CVE-ID: CVE-2024-45817)
CWE-ID: CWE-833 - Deadlock
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local user to perform a denial of service attack (DoS) on the target system.
The vulnerability exists due to a deadlock within the vlapic_error() function. A buggy or malicious HVM or PVH guest can deadlock Xen and perform a denial of service attack.
Remediation
Install update from vendor's website.