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Ubuntu Security Notice (C) 2005-2016 Canonical, Inc. / NASL script (C) 2006-2016 Tenable Network Security, Inc.
The remote Ubuntu host is missing one or more security-related
David Watson discovered that 'umount -r' removed some restrictive
mount options like the 'nosuid' flag. If /etc/fstab contains
user-mountable removable devices which specify the 'nosuid' flag
(which is common practice for such devices), a local attacker could
exploit this to execute arbitrary programs with root privileges by
calling 'umount -r' on a removable device.
This does not affect the default Ubuntu configuration. Since Ubuntu
mounts removable devices automatically, there is normally no need to
configure them manually in /etc/fstab.
Note that Tenable Network Security has extracted the preceding
description block directly from the Ubuntu security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues.
Update the affected packages.
Risk factor :
High / CVSS Base Score : 7.2
Family: Ubuntu Local Security Checks
Nessus Plugin ID: 20595 ()
CVE ID: CVE-2005-2876
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