CVE-2011-3982

Severity: low (CVSS 2.1 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2011-10-05 · updated 2026-06-16
Weakness: CWE-399

Description

The Fibre Channel driver for QLogic adapters in IBM AIX 6.1 and 7.1 does not properly handle DMA resource limitations, which allows local users to cause a denial of service (system hang) via vectors that generate a large amount of DMA I/O, related to a deadlock in timer processing across CPUs.

Affected products

IBM AIX: 6.1, 7.1

References

http://www-01.ibm.com/support/docview.wss?uid=isg1IZ94222
http://www-01.ibm.com/support/docview.wss?uid=isg1IZ94383
http://www-01.ibm.com/support/docview.wss?uid=isg1IZ94593
http://www-01.ibm.com/support/docview.wss?uid=isg1IZ94675
http://www-01.ibm.com/support/docview.wss?uid=isg1IZ96761
http://www.vupen.com/english/advisories/2011/0275
http://www.vupen.com/english/advisories/2011/0691
https://exchange.xforce.ibmcloud.com/vulnerabilities/67292
http://www-01.ibm.com/support/docview.wss?uid=isg1IZ94222
http://www-01.ibm.com/support/docview.wss?uid=isg1IZ94383
http://www-01.ibm.com/support/docview.wss?uid=isg1IZ94593
http://www-01.ibm.com/support/docview.wss?uid=isg1IZ94675

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