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Firebird Environment Variable Buffer Overflow Vulnerabilities
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Secunia Advisory:
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SA8758
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Release Date:
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2003-05-12
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Last Update:
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2004-05-24
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Critical:
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Less critical
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Impact:
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Privilege escalation
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Where:
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Local system
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Solution Status:
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Vendor Patch
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| Software: | Firebird 1.x
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Description:
Some vulnerabilities have been identified in Firebird, which can be exploited by malicious, local users to escalate privileges on a vulnerable system.
The vulnerabilities are caused due to boundary errors when the binaries "gds_inet_server", "gds_drop", and "gds_lock_mgr" use the environment variable "INTERBASE". This can be exploited by setting an overly long, specially crafted value for "INTERBASE", which will cause a buffer overflow and allow execution of arbitrary code with escalated privileges.
The vulnerabilities have been confirmed in version 1.0.0 and 1.0.2. Other versions may also be affected.
An exploit has been released.
Do you have this product installed on your home computer? Scan using the free Personal Software Inspector. Check if a vulnerable version is installed on computers in your corporate network, scan using the Network Software Inspector.
Solution:
The vulnerabilities have reportedly been fixed in version 1.5.0.
http://firebird.sourceforge.net/index.php?op=files
Provided and/or discovered by:
bob@dtors.net
kokanin@dtors.net
Changelog:
2004-05-24: Updated "Solution" section.
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
Secunia collects, validates, and verifies all vulnerability reports issued by security research groups, vendors, and others.
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6 Related Secunia Security Advisories
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1. Firebird 1 Unspecified Path Disclosure Weakness
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2. Firebird Multiple Vulnerabilities
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3. Firebird 1 Multiple Buffer Overflow Vulnerabilities
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4. Firebird Multiple Vulnerabilities
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5. Borland Interbase / Firebird Database Name Buffer Overflow Vulnerability
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6. Firebird External Table Vulnerability
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