Description
Firebird is a relational database. Prior to versions 3.0.13, 4.0.6, and 5.0.3, there is an XDR message parsing NULL pointer dereference denial-of-service vulnerability in Firebird. This specific flaw exists within the parsing of xdr message from client. It leads to NULL pointer dereference and DoS. This issue has been patched in versions 3.0.13, 4.0.6, and 5.0.3.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| FirebirdSQL | firebird | < 3.0.13, < 4.0.6, < 5.0.3 | — |
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 14 | firebird3.0 | 3.0.13.ds7-1 | — |
| Debian 14 | firebird4.0 | 4.0.6.3221.ds6-1 | — |
| Debian 13 | firebird3.0 | 3.0.12.ds7-13+deb13u1 | — |
| Debian 13 | firebird4.0 | 4.0.5.3140.ds6-17+deb13u1 | DSA-5992-1 |
| Debian 12 | firebird3.0 | 3.0.11.33637.ds4-2+deb12u1 | — |
| Debian 11 | firebird3.0 | 3.0.7.33374.ds4-2+deb11u1 | DLA-4282-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.04 LTS | firebird3.0 | No fix yet | — |
| Ubuntu 25.10 | firebird3.0 +1 | No fix yet | — |
| Ubuntu 24.04 LTS | firebird3.0 | No fix yet | — |
| Ubuntu 22.04 LTS | firebird3.0 | No fix yet | — |
| Ubuntu 20.04 LTS | firebird3.0 | No fix yet | — |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | firebird3.0 | No fix yet | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP7 | firebird | 3.0.4.33054-150200.3.3.1 | SUSE-SU-2025:02991-1 |
| SLES 15 SP6 | firebird | 3.0.4.33054-150200.3.3.1 | SUSE-SU-2025:02991-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.6 | firebird | 3.0.4.33054-150200.3.3.1 | SUSE-SU-2025:02991-1 |
Advisories 4
- DSA-5992-1 firebird4.0 - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-4282-1 firebird3.0 - security update Debian Security (DSA / DLA) · Mar 9, 2026
- SUSE-SU-2025:02991-1 Security update for firebird SUSE / openSUSE Security Updates · Feb 5, 2026
- WID-SEC-2025-1857 Firebird: Mehrere Schwachstellen BSI CERT-Bund (WID) · Aug 31, 2025