The Nova scheduler in OpenStack Compute (Nova) Folsom (2012.2) and Essex (2012.1), when DifferentHostFilter or SameHostFilter is enabled, allows remote authenticated users to cause a denial of service (excessive database lookup calls and server hang) via a request with many repeated IDs in the os:scheduler_hints section.
📦
compute
Vendor: openstack
Actively Exploited
0
CISA KEV List
PoC / Exploits
0
Code Available
Total RCEs
0
Remote Access
Total CVEs
51
Total Indexed
Avg. EPSS
1.55%
Exploit Prob.
Security Vulnerability Index
Page 2 / 6
3.5
CVSS
Severity: LOW
4.3
CVSS
The (1) EC2 and (2) OS APIs in OpenStack Compute (Nova) Folsom (2012.2), Essex (2012.1), and Diablo (2011.3) do not properly check the protocol when security groups are created and the network protocol is not specified entirely in lowercase, which allows remote attackers to bypass intended access restrictions.
Severity: MEDIUM