Resource exhaustion in Xen - #VU49909
Published: January 21, 2021
Vulnerability identifier: #VU49909
CSH Severity: Medium
CVSS v4: 8.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H]
CVE-ID: N/A
CWE-ID: CWE-400
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to perform a denial of service (DoS) attack.
The vulnerability exists due to application does not properly control consumption of internal resources. An HVM guests with PCI pass through devices can perform a denial of service attack by exhausting all IRQ vectors on the system.
Affected software
Xen
Remediation
Install updates from vendor's website.