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CVE-2012-2101

16
FAUCET Score

CVE-2012-2101 describes a denial-of-service vulnerability in OpenStack Compute (Nova) versions Folsom, 2012.1, and 2011.3. The flaw allows remote authenticated users with specific permissions to exhaust CPU and hard drive resources by creating an excessive number of security group rules, leading to a large volume of iptables entries. This vulnerability has a CVSS score of 3.5, indicating a medium attack complexity and partial availability impact, with no confidentiality or integrity impact. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
2011.3CPE matchmatch criteria
cpe:2.3:a:openstack:nova:2011.3:*:*:*:*:*:*:*
2012.1CPE matchmatch criteria
cpe:2.3:a:openstack:nova:2012.1:*:*:*:*:*:*:*
folsomCPE matchmatch criteria
cpe:2.3:a:openstack:nova:folsom:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

3.5LOW

AV:N/AC:M/Au:S/C:N/I:N/A:P

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
SINGLE
Exploitability Score
6.8
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.48%
Probability of exploitation in next 30 days
EPSS Percentile
71.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0148 is in the 76th percentile among its peer group of 1,637 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

pippatch availablevia ghsa
Product: novaFixed in: 12.0.0a0

Vendor Advisories (1)

pipGHSA-hq3f-9gf7-73r8low

Openstack Compute (Nova) Denial of service via network request that triggers large number of iptables rules

May 17, 2022

References

lists.fedoraproject.org / pipermail/package-announce/2012-May/079434.html
lists.fedoraproject.org / pipermail/package-announce/2012-May/079551.html
bugs.launchpad.net / nova/+bug/969545
secunia.com / advisories/49034
Vendor Advisory
secunia.com / advisories/49048
Vendor Advisory
exchange.xforce.ibmcloud.com / vulnerabilities/75243
github.com / openstack/nova/commit/1f644d210557b1254f7c7b39424b09a45329ade7
github.com / openstack/nova/commit/8c8735a73afb16d5856f0aa6088e9ae406c52beb
github.com / openstack/nova/commit/a67db4586f70ed881d65e80035b2a25be195ce64
lists.launchpad.net / openstack/msg10268.html
ubuntu.com / usn/usn-1438-1
osvdb.org / 81641