CVE-2005-0337
First published: Thu Feb 10 2005(Updated: )
Postfix 2.1.3, when /proc/net/if_inet6 is not available and permit_mx_backup is enabled in smtpd_recipient_restrictions, allows remote attackers to bypass e-mail restrictions and perform mail relaying by sending mail to an IPv6 hostname.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Postfix | =2.1.3 | |
| Red Hat Enterprise Linux | =4.0 | |
| SUSE Linux | =9.2 | |
| SUSE Linux | =9.0 | |
| Red Hat Enterprise Linux | =4.0 | |
| SUSE Linux | =8.2 | |
| SUSE Linux | =9.0 | |
| SUSE Linux | =8.0 | |
| SUSE Linux | =8.0 | |
| SUSE Linux | =9.1 | |
| Red Hat Enterprise Linux | =4.0 | |
| Red Hat Enterprise Linux Desktop | =4.0 | |
| SUSE Linux | =8.1 |
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Reference Links
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=267837
- http://www.securityfocus.com/bid/12445
- http://secunia.com/advisories/14137/
- http://www.redhat.com/support/errata/RHSA-2005-152.html
- http://marc.info/?l=bugtraq&m=110763358832637&w=2
- https://exchange.xforce.ibmcloud.com/vulnerabilities/19218
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11339
Frequently Asked Questions
What is the severity of CVE-2005-0337?
CVE-2005-0337 is considered a medium severity vulnerability as it allows remote attackers to bypass e-mail restrictions and perform mail relaying.
How do I fix CVE-2005-0337?
To fix CVE-2005-0337, disable the permit_mx_backup directive in the smtpd_recipient_restrictions configuration.
Which versions of Postfix are affected by CVE-2005-0337?
CVE-2005-0337 specifically affects Postfix version 2.1.3.
What should I do if I am using a system with CVE-2005-0337?
If you are using a system with CVE-2005-0337, it is recommended to update or patch your Postfix installation to mitigate the vulnerability.
Can CVE-2005-0337 affect my email server's security?
Yes, CVE-2005-0337 can significantly impact your email server's security by allowing unauthorized mail relaying.
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