Resource exhaustion in Xapi
CVE-2022-33749
XAPI open file limit DoS It is possible for an unauthenticated client on the network to cause XAPI to hit its file-descriptor limit. This causes XAPI to be unable to accept new requests for other (trusted) clients, and blocks XAPI from carrying out any tasks that require the opening of file descriptors.
EPSS: 0.009 (56.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security@xen.org (Patch, Vendor Advisory)
- security@xen.org (Patch, Vendor Advisory)
- security@xen.org (mailing-list, Patch, Mailing List, Third Party Advisory)
- security@xen.org (vendor-advisory)
Frequently asked questions
- What is CVE-2022-33749?
- CVE-2022-33749 is a medium-severity vulnerability in Xapi, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 5.3/10. Published 2022-10-11.
- How severe is CVE-2022-33749?
- Medium severity. CVSS v3 base score is 5.3 out of 10.
- Is CVE-2022-33749 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.