mount in util-linux 2.19 and earlier does not remove the /etc/mtab.tmp file after a failed attempt to add a mount entry, which allows local users to trigger corruption of the /etc/mtab file via multiple invocations.
openwall.com/lists/oss-security/2011/03/04/10
openwall.com/lists/oss-security/2011/03/04/11
openwall.com/lists/oss-security/2011/03/04/12
openwall.com/lists/oss-security/2011/03/04/9
openwall.com/lists/oss-security/2011/03/05/3
openwall.com/lists/oss-security/2011/03/05/7
openwall.com/lists/oss-security/2011/03/07/9
openwall.com/lists/oss-security/2011/03/14/16
openwall.com/lists/oss-security/2011/03/14/5
openwall.com/lists/oss-security/2011/03/14/7
openwall.com/lists/oss-security/2011/03/15/6
openwall.com/lists/oss-security/2011/03/22/4
openwall.com/lists/oss-security/2011/03/22/6
openwall.com/lists/oss-security/2011/03/31/3
openwall.com/lists/oss-security/2011/03/31/4
openwall.com/lists/oss-security/2011/04/01/2
bugzilla.redhat.com/show_bug.cgi?id=688980
exchange.xforce.ibmcloud.com/vulnerabilities/66704