REDHAT-BUG-492104
First published: Wed Mar 25 2009(Updated: )
A security flaw was found in the screen utility in the way it used to create one particular temporary file. An attacker could use this flaw to perform a symlink attack. References: <a href="https://bugs.launchpad.net/ubuntu/+source/screen/+bug/315993">https://bugs.launchpad.net/ubuntu/+source/screen/+bug/315993</a> <a href="http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=521123">http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=521123</a>
| Affected Software | Affected Version | How to fix |
|---|---|---|
| GNU Screen |
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Reference Links
- https://bugs.launchpad.net/ubuntu/+source/screen/+bug/315993
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=521123
- https://bugs.launchpad.net/ubuntu/+source/screen/+bug/315993/comments/1
- http://www.redhat.com/security/updates/classification/
- https://access.redhat.com/security/cve/CVE-2009-1214
- http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-1214
- http://www.openwall.com/lists/oss-security/2009/03/25/7
- http://savannah.gnu.org/bugs/?25296
- https://access.redhat.com/security/cve/CVE-2009-1215
- http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-1215
- http://sunsite.ualberta.ca/Documentation/Gnu/screen-3.9.4/html_node/screen_82.html#SEC82
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=492104#c6
- http://savannah.gnu.org/bugs/index.php?25296#comment4
- https://bugzilla.redhat.com/show_bug.cgi?id=492104
Frequently Asked Questions
What is the severity of REDHAT-BUG-492104?
The severity of REDHAT-BUG-492104 is considered to be medium due to its potential for symlink attacks.
How do I fix REDHAT-BUG-492104?
To fix REDHAT-BUG-492104, update to the latest version of GNU Screen that addresses the symlink vulnerability.
What is the nature of the vulnerability in REDHAT-BUG-492104?
The vulnerability in REDHAT-BUG-492104 involves a flaw in how the screen utility creates temporary files, potentially leading to symlink attacks.
Who is affected by REDHAT-BUG-492104?
Users of the GNU Screen utility are affected by REDHAT-BUG-492104 if they use versions vulnerable to the symlink attack.
Is there a workaround for REDHAT-BUG-492104?
A possible workaround for REDHAT-BUG-492104 is to avoid using the vulnerable features of the GNU Screen utility until an update is applied.
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