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CVE-2012-4517

18
FAUCET Score

CVE-2012-4517 describes a denial-of-service vulnerability in ibacm before version 1.0.6, affecting openfabrics ibacm. This flaw allows remote attackers to crash the ibacm service by sending a specially crafted join response due to improper management of reference counts for multicast connections. With a CVSS score of 5.0 (AV:N/AC:L/Au:N/C:N/I:N/A:P), it represents a medium-severity issue with low attack complexity and no authentication required, leading to a partial availability impact. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.0.5CPE matchmatch criteria
cpe:2.3:a:openfabrics:ibacm:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

AV:N/AC:L/Au:N/C:N/I:N/A:P

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
2.82%
Probability of exploitation in next 30 days
EPSS Percentile
85.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0282 is in the 79th percentile among its peer group of 23,690 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 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 (12)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: ibacm-0:1.0.8-0.git7a3adb7.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: ibsim-0:0.5-7.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: ibutils-0:1.5.7-7.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: infiniband-diags-0:1.5.12-5.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: infinipath-psm-0:3.0.1-115.1015_open.1.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: libibmad-0:1.3.9-1.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: libibumad-0:1.3.8-1.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: libibverbs-0:1.1.6-5.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: libmlx4-0:1.0.4-1.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: librdmacm-0:1.0.17-0.git4b5c1aa.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: opensm-0:3.3.15-1.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: rdma-0:3.6-1.el6
View patch

Vendor Advisories (1)

redhatCVE-2012-4517Low

ibacm: DoS (ibacm deamon crash) by joining responses for multicast destinations

Apr 4, 2012

References

comments.gmane.org / gmane.linux.drivers.rdma/11659
Patch
git.openfabrics.org / git
rhn.redhat.com / errata/RHSA-2013-0509.html
bugzilla.redhat.com / show_bug.cgi
exchange.xforce.ibmcloud.com / vulnerabilities/79396
openwall.com / lists/oss-security/2012/10/11/6
openwall.com / lists/oss-security/2012/10/11/9
securityfocus.com / bid/55890