CVE-2009-2939
First published: Mon Sep 21 2009(Updated: )
The postfix.postinst script in the Debian GNU/Linux and Ubuntu postfix 2.5.5 package grants the postfix user write access to /var/spool/postfix/pid, which might allow local users to conduct symlink attacks that overwrite arbitrary files.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Plone | =2.5.5 | |
| Debian | =6.06 | |
| Ubuntu Linux | =4.0 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2009-2939?
CVE-2009-2939 has a medium severity rating due to the potential for local users to conduct symlink attacks.
How do I fix CVE-2009-2939?
To fix CVE-2009-2939, upgrade to a patched version of Postfix or modify permissions to restrict write access for the postfix user.
Which systems are affected by CVE-2009-2939?
CVE-2009-2939 affects the Postfix package version 2.5.5 on Debian GNU/Linux and Ubuntu systems.
What are the potential exploits of CVE-2009-2939?
Exploiting CVE-2009-2939 allows local users to create symlinks that could be used to overwrite arbitrary files.
Is CVE-2009-2939 related to any specific software versions?
Yes, CVE-2009-2939 specifically affects Postfix version 2.5.5 in Debian and Ubuntu systems.
- collector/nvd-historical
- agent/references
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- vendor/postfix
- canonical/plone
- version/plone/2.5.5
- vendor/debian
- canonical/debian
- version/debian/6.06
- vendor/ubuntu
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- version/ubuntu linux/4.0