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PostgreSQL Multiple Connections Denial of Service Vulnerability
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Secunia Advisory:
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SA18419
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Release Date:
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2006-01-12
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Last Update:
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2006-02-20
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Popularity:
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7,953 views
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Critical:
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Less critical
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Impact:
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Security Bypass
DoS
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Where:
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From local network
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Solution Status:
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Vendor Patch
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| Software: | PostgreSQL 8.x
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| CVE reference: | CVE-2006-0105
CVE-2006-0591
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Description:
A vulnerability and a weakness has been reported in PostgreSQL, which potentially can be exploited by malicious, local users to bypass certain security restrictions and by malicious people to cause a DoS (Denial of Service).
1) An error exists in the handling of multiple concurrent connections. This can be exploited to shutdown the postmaster process.
Successful exploitation causes a situation where new connections can't be established until the service is manually restarted.
The vulnerability has been reported in versions 8.0.0 through 8.0.5 and 8.1.0 through 8.1.1. This only affects the Microsoft Windows platform.
2) Signedness errors in the cryptographic library may increase the probability that certain password hashes are generated using the same salt.
For more information:
SA18772
Solution:
Update to version 8.0.6 or 8.1.2.
http://www.postgresql.org/ftp/
Provided and/or discovered by:
1) The vendor credits Yoshiyuki Asaba.
Changelog:
2006-02-09: Updated "Description", "Other References" sections and added CVE reference.
2006-02-20: Updated "Description" section.
Original Advisory:
http://archives.postgresql.org/pgsql-announce/2006-01/msg00001.php
Other References:
SA18772:
http://secunia.com/advisories/18772/
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About this Secunia Advisory
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
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