A denial of service flaw was found in the way ibacm, an InfiniBand communication manager assistant, performed management of reference counts for multicast connections. The default reference count value for multicast connection is set to zero and when the multicast connection got released, an attempt was made to free it, possibly resulting in ib_acm service / daemon crash. Upstream patch: [1] http://git.openfabrics.org/git?p=~shefty/ibacm.git;a=commit;h=c7d28b35d64333c262de3ec972c426423dadccf9
This issue affects the version of the ibacm package, as shipped with Red Hat Enterprise Linux 6.
CVE Request: [2] http://www.openwall.com/lists/oss-security/2012/10/11/6
This was assigned CVE-2012-4517.
This issue has been addressed in following products: Red Hat Enterprise Linux 6 Via RHSA-2013:0509 https://rhn.redhat.com/errata/RHSA-2013-0509.html
Statement: (none)