Incorrect calculation in Firebird - CVE-2025-65104

Vulnerability identifier: #VU126558

CSH Severity: Low

CVSS v4: 6.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:L/SC:N/SI:N/SA:N]

CVE-ID: CVE-2025-65104

CWE-ID: CWE-682

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local user to disclose sensitive information and modify data.

The vulnerability exists due to improper data length handling in XSQLDA fields when processing responses from a Firebird 4 or higher server. A local user can use the firebird3 client with a newer server to disclose sensitive information and modify data.

The issue occurs when the firebird3 client is used with a Firebird 4 or higher server.

Firebird
SUSE Linux Enterprise Desktop 15
SUSE Linux Enterprise Real Time 15
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Package Hub 15
firebird
firebird-debugsource
libib_util
firebird-examples
libfbclient2
libib_util-debuginfo
firebird-utils
firebird-server
libib_util-devel
libfbclient2-debuginfo
firebird-server-debuginfo
firebird-utils-debuginfo
libfbclient-devel
firebird-debuginfo

Install security update from vendor's website.

Firebird - update to 3.0.14
firebird - update to 3.0.14.33856-150200.3.9.1
firebird-debugsource - update to 3.0.14.33856-150200.3.9.1
libib_util - update to 3.0.14.33856-150200.3.9.1
firebird-examples - update to 3.0.14.33856-150200.3.9.1
libfbclient2 - update to 3.0.14.33856-150200.3.9.1
libib_util-debuginfo - update to 3.0.14.33856-150200.3.9.1
firebird-utils - update to 3.0.14.33856-150200.3.9.1
firebird-server - update to 3.0.14.33856-150200.3.9.1
libib_util-devel - update to 3.0.14.33856-150200.3.9.1
libfbclient2-debuginfo - update to 3.0.14.33856-150200.3.9.1
firebird-server-debuginfo - update to 3.0.14.33856-150200.3.9.1
firebird-utils-debuginfo - update to 3.0.14.33856-150200.3.9.1
libfbclient-devel - update to 3.0.14.33856-150200.3.9.1
firebird-debuginfo - update to 3.0.14.33856-150200.3.9.1

• https://github.com/FirebirdSQL/firebird/security/advisories/GHSA-mfpr-9886-xjhg

• Multiple vulnerabilities in Firebird
• SUSE update for firebird