SB2024112831 - SUSE update for xen

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Main Vulnerability Database SB2024112831

SB2024112831 - SUSE update for xen

Published: November 28, 2024

Security Bulletin ID SB2024112831
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 3
Exploitation vector Remote access
Highest impact Information disclosure

Breakdown by Severity

Medium 67% Low 33%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 3 vulnerabilities.


1) 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.


2) Improper locking (CVE-ID: CVE-2024-45818)

CWE-ID: CWE-667 - Improper Locking

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green


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

The vulnerability exists due to improper locking in standard VGA implementation. A malicious guest can cause a deadlock and perform a denial of service attack against the entire host.


3) Memory leak (CVE-ID: CVE-2024-45819)

CWE-ID: CWE-401 - Missing release of memory after effective lifetime

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N/E:U/U:Green


The vulnerability allows a malicious guest to gain access to sensitive information.

The vulnerability exists due data leak in libxl related to how PBH guests work with ACPI tables. A malicious guest can access sensitive information pertaining to the host, control domain, or other guests.


Remediation

Install update from vendor's website.

References