CVE-2023-41038: Server crash when using specific form of SET BIND statement

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-03-20 · updated 2026-06-17
Weakness: CWE-770

Description

Firebird is a relational database. Versions 4.0.0 through 4.0.3 and version 5.0 beta1 are vulnerable to a server crash when a user uses a specific form of SET BIND statement. Any non-privileged user with minimum access to a server may type a statement with a long `CHAR` length, which causes the server to crash due to stack corruption. Versions 4.0.4.2981 and 5.0.0.117 contain fixes for this issue. No known workarounds are available.

Affected products

FirebirdSQL firebird: from 4.0.0 through 4.0.3; 5.0-beta1

References

https://firebirdsql.org/en/snapshot-builds
https://github.com/FirebirdSQL/firebird/security/advisories/GHSA-6fv8-8rwr-9692
https://firebirdsql.org/en/snapshot-builds
https://github.com/FirebirdSQL/firebird/security/advisories/GHSA-6fv8-8rwr-9692

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