SB2024071649 - SUSE update for xen 

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Main Vulnerability Database SB2024071649

SB2024071649 - SUSE update for xen

Published: July 16, 2024

Security Bulletin ID SB2024071649
Severity
Medium
Patch available
YES
Number of vulnerabilities 5
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

Medium 40% Low 60%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 5 secuirty vulnerabilities.


1) Information disclosure (CVE-ID: CVE-2023-28746)

The vulnerability allows a local user to gain access to potentially sensitive information.

The vulnerability exists due to information exposure through microarchitectural state after transient execution from some register files for some Intel Atom Processors. A local user can gain access to sensitive information.


2) Input validation error (CVE-ID: CVE-2023-46842)

The vulnerability allows a malicious guest to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of register values when invoking a hypercall. A malicious HVM or PVH guest can pass specially crafted input to the hypervisor and perform a denial of service (DoS) attack.


3) Race condition (CVE-ID: CVE-2024-2193)

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a speculative race condition. A local user can exploit the race and gain unauthorized access to contents of arbitrary host memory, including memory assigned to other guests.

The vulnerability was dubbed GhostRace.


4) Processor optimization removal or modification of security-critical code (CVE-ID: CVE-2024-2201)

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.


5) Type confusion (CVE-ID: CVE-2024-31142)

The vulnerability allows a malicious guest to escalate privileges on the system.

The vulnerability exists due to a logical error caused by a branch type confusion when implementing fixes for the following vulnerabilities:

#VU65219 (CVE-2022-23816)
#VU65204 (CVE-2022-23825)
#VU65205 (CVE-2022-29900)
#VU79263 (CVE-2023-20569)

A malicious guest can gain access to sensitive information and escalate privileges on the system.


Remediation

Install update from vendor's website.

References