Double free vulnerability in the authentication and authentication
token alteration code in PAM-MySQL 0.6.x before 0.6.2 and 0.7.x before
0.7pre3 allows remote attackers to cause a denial of service
(application crash) and possibly execute arbitrary code via crafted
passwords, which lead to a double free of a pointer that was created
by the pam_get_item function. NOTE: this issue only occurs in certain
configurations in which there are multiple PAM modules, PAM-MySQL is
not evaluated first, and there are no requisite modules before
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