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The remote Red Hat host is missing a security update.
Updated bash packages that fix one security issue and several bugs are
now available for Red Hat Enterprise Linux 4.
The Red Hat Security Response Team has rated this update as having low
security impact. A Common Vulnerability Scoring System (CVSS) base
score, which gives a detailed severity rating, is available from the
CVE link in the References section.
Bash (Bourne-again shell) is the default shell for Red Hat Enterprise
It was found that certain scripts bundled with the Bash documentation
created temporary files in an insecure way. A malicious, local user
could use this flaw to conduct a symbolic link attack, allowing them
to overwrite the contents of arbitrary files accessible to the victim
running the scripts. (CVE-2008-5374)
This update also fixes the following bugs :
* If a child process's PID was the same as the PID of a previously
ended child process, Bash did not wait for that child process. In some
cases this caused 'Resource temporarily unavailable' errors. With this
update, Bash recycles PIDs and waits for processes with recycled PIDs.
* Bash's built-in 'read' command had a memory leak when 'read' failed
due to no input (pipe for stdin). With this update, the memory is
correctly freed. (BZ#537029)
* Bash did not correctly check for a valid multi-byte string when
setting the IFS value, causing Bash to crash. With this update, Bash
checks the multi-byte string and no longer crashes. (BZ#539536)
* Bash incorrectly set locale settings when using the built-in
'export' command and setting the locale on the same line (for example,
with 'LC_ALL=C export LC_ALL'). With this update, Bash correctly sets
locale settings. (BZ#539538)
All bash users should upgrade to these updated packages, which contain
backported patches to correct these issues.
See also :
Update the affected bash package.
Risk factor :
Medium / CVSS Base Score : 6.9
CVSS Temporal Score : 6.0
Public Exploit Available : true
Family: Red Hat Local Security Checks
Nessus Plugin ID: 52008 ()
Bugtraq ID: 32733
CVE ID: CVE-2008-5374
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