CVE-2012-4518: ibacm 1.0.7 creates files with world-writable permissions, which allows local users to overwrite the ib_acm da

Routine

LOW 3.6DOWNGRADE

CVE-2012-4518 is a low-severity flaw (CVSS 3.6) affecting ibacm. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

ibacm 1.0.7 creates files with world-writable permissions, which allows local users to overwrite the ib_acm daemon log or ibacm.port file.

Why this priority

No elevated risk signals yet

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	3.6 (Low)
EPSS exploit chance	0.4% (top 70%)
CISA exploited list	No
Weakness	CWE-264
Published	2012-10-22
Last modified	2026-06-16

Publisher (CNA): Red Hat, Inc. · Vendor: openfabrics

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2012-10-22 23:55 UTCPublished CVE record published
2026-06-16 23:45 UTCUpdated Record last modified

openfabrics ibacm DOWNGRADE

Affected: 1.0.7

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.0.7

1. Check installed version

apt-cache policy ibacm || rpm -q ibacm || ibacm --version

2. No fixed release: DOWNGRADE to a release before 1.0.7 (Debian / Ubuntu)

apt-cache madison ibacm sudo apt install ibacm=<VERSION_BEFORE_1.0.7> sudo apt-mark hold ibacm

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list ibacm sudo dnf downgrade ibacm-<VERSION_BEFORE_1.0.7> sudo dnf versionlock add ibacm

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2012-4518?

ibacm: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2012-4518 being exploited?

CVE-2012-4518 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2012-4518 affect?

CVE-2012-4518 affects ibacm. Severity is low (CVSS 3.6). ibacm 1.0.7 creates files with world-writable permissions, which allows local users to overwrite the ib_acm daemon log or ibacm.port file.

How urgent is CVE-2012-4518?

Priority 20/100. No elevated risk signals yet.

Related CVEs

CVE-2012-4517 MEDIUM 5.0 UPGRADE ibacm before 1.0.6 does not properly manage reference counts for multicast connections, which allows remote at

References

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