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This script is Copyright (C) 2013 Tenable Network Security, Inc.
The remote Scientific Linux host is missing one or more security
A bug fix included in SLBA-2012:0264 introduced a denial of service
flaw in autofs. When using autofs with LDAP, a local user could use
this flaw to crash autofs, preventing future mount requests from being
processed until the autofs service was restarted. Note: This flaw did
not impact existing mounts (except for preventing mount expiration).
This update also fixes the following bugs :
- The autofs init script sometimes timed out waiting for
the automount daemon to exit and returned a shutdown
failure if the daemon failed to exit in time. To resolve
this problem, the amount of time that the init script
waits for the daemon has been increased to allow for
cases where servers are slow to respond or there are
many active mounts.
- Due to an omission when backporting a change, autofs
attempted to download the entire LDAP map at startup.
This mistake has now been corrected.
- A function to check the validity of a mount location was
meant to check only for a small subset of map location
errors. A recent modification in error reporting
inverted a logic test in this validating function.
Consequently, the scope of the test was widened, which
caused the automount daemon to report false positive
failures. With this update, the faulty logic test has
been corrected and false positive failures no longer
- When there were many attempts to access invalid or
non-existent keys, the automount daemon used excessive
CPU resources. As a consequence, systems sometimes
became unresponsive. The code has been improved so that
automount checks for invalid keys earlier in the process
which has eliminated a significant amount of the
- The auto.master(5) man page did not document the '-t,
--timeout' option in the FORMAT options section. This
update adds this information to the man page.
This update also adds the following enhancement :
- Previously, it was not possible to configure separate
timeout values for individual direct map entries in the
autofs master map. This update adds this functionality.
See also :
Update the affected autofs and / or autofs-debuginfo packages.
Risk factor :
Medium / CVSS Base Score : 4.9
Family: Scientific Linux Local Security Checks
Nessus Plugin ID: 63591 ()
CVE ID: CVE-2012-2697
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