CVE-2025-24975: Firebird Non-Authorized Access to Encrypted Database Using Execute Statement on External
Firebird is a relational database. Prior to snapshot versions 4.0.6.3183, 5.0.2.1610, and 6.0.0.609, Firebird is vulnerable if ExtConnPoolSize is not set equal to 0. If connections stored in ExtConnPool are not verified for presence and suitability of the CryptCallback interface is used when created versus what is available could result in a segfault in the server process. Encrypted databases, accessed by execute statement on external, may be accessed later by an attachment missing a key to that database. In a case when execute statement are chained, segfault may happen. Additionally, the segfault may affect unencrypted databases. This issue has been patched in snapshot versions 4.0.6.3183, 5.0.2.1610, and 6.0.0.609 and point releases 4.0.6 and 5.0.2. A workaround for this issue involves setting ExtConnPoolSize equal to 0 in firebird.conf.
Affected Software
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Event History
Frequently Asked Questions
What is the severity of CVE-2025-24975?
CVE-2025-24975 is considered a high-severity vulnerability due to potential unauthorized access to database connections.
How do I fix CVE-2025-24975?
To fix CVE-2025-24975, set the ExtConnPoolSize parameter to 0 to prevent unsafe external connection pooling.
What products are affected by CVE-2025-24975?
CVE-2025-24975 affects Firebird versions prior to 4.0.6, 5.0.2, and 6.0.0.
What could happen if CVE-2025-24975 is exploited?
Exploitation of CVE-2025-24975 could allow attackers to access sensitive data through unsecured database connections.
Is there a patch available for CVE-2025-24975?
Yes, upgrading to Firebird versions 4.0.6.3183, 5.0.2.1610, or 6.0.0.609 will patch CVE-2025-24975.