Bug 2388792 (CVE-2025-24975)

Summary: CVE-2025-24975 firebirdsql: Firebird Access Bypass
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
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Priority: high    
Version: unspecifiedKeywords: Security
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Hardware: All   
OS: Linux   
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A flaw has been discovered in the Firebird SQL project that can lead to an access bypass. If connections stored in the ExtConnPool are not properly verified for the CryptCallback interface upon creation, it could cause a server process segmentation fault. This vulnerability could allow an attachment to access an encrypted database without the required key if the database was previously accessed by an execute statement on external command. The segmentation fault, which could also affect unencrypted databases, can be triggered when a chain of execute statements is used.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Depends On: 2388809, 2388811, 2388813, 2388815    
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Description OSIDB Bzimport 2025-08-15 16:01:43 UTC 
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.