Description
Buffer overflow in ibserver for Firebird Database 1.0 and other versions before 1.5, and possibly other products that use the InterBase codebase, allows remote attackers to cause a denial of service (crash) via a long database name, as demonstrated using the gsec command.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 3.1 | firebird2 | 1.5.1-4sarge1 | DSA-1014-1 |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
Exploit-DB 2
- Borland Interbase 7.x - Remote Buffer Overflow EDB-303 · remote · Jun 25, 2004 · verified
- Firebird 1.0 - Remote Database Name Buffer Overrun EDB-24165 · remote · Jun 1, 2004 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Advisories 1
- DSA-1014-1 firebird2 - buffer overflow Debian Security (DSA / DLA) · Mar 9, 2026
References
- DSA-1014 vendor-advisory
- firebird-database-name-bo(16229) vdb-entry
- 19350 third-party-advisory
- 20040601 Firebird Database Remote Database Name Overflow mailing-list
- 6624 vdb-entry
- 20040602 Firebird [ AND Interbase 7 ] Database Remote Database Name Overflow mailing-list
- interbase-database-name-bo(16316) vdb-entry
- 10446 vdb-entry
- http://www.securiteam.com/unixfocus/5AP0P0UCUO.html
- 1010381 vdb-entry
- 6408 vdb-entry
- 11756 third-party-advisory