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CVE-2003-0197: Buffer overflow gds_lock_mgr of Interbase Database 6.x allows local users to gain privileges via a long ISC_LO

41
This month
HIGH 7.2DOWNGRADEDOWNGRADE

CVE-2003-0197 is a high-severity flaw (CVSS 7.2) affecting interbase, firebird. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Buffer overflow gds_lock_mgr of Interbase Database 6.x allows local users to gain privileges via a long ISC_LOCK_ENV environment variable (INTERBASE_LOCK).

Why this priority

  • High severity
  • Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score7.2 (High)
EPSS exploit chance0.5% (top 55%)
CISA exploited listNo
Published2003-04-11
Last modified2026-06-16
Publisher (CNA): MITRE · Vendor: borland software · firebirdsql

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Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

borland software interbase DOWNGRADE
Affected: 6.0 · 6.4 · 6.5
Fixed in: no fixed release known
Safe to downgrade to: a release before 6.0
1. Check installed version
apt-cache policy interbase || rpm -q interbase || interbase --version
2. No fixed release: DOWNGRADE to a release before 6.0 (Debian / Ubuntu)
apt-cache madison interbase sudo apt install interbase=<VERSION_BEFORE_6.0> sudo apt-mark hold interbase
2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)
dnf --showduplicates list interbase sudo dnf downgrade interbase-<VERSION_BEFORE_6.0> sudo dnf versionlock add interbase
Downgrade risk
Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.
After downgrade
Restart the service, and keep the package held until a fixed release ships.
firebirdsql firebird DOWNGRADE
Affected: 1.0.2
Fixed in: no fixed release known
Safe to downgrade to: a release before 1.0.2
1. Check installed version
apt-cache policy firebird || rpm -q firebird || firebird --version
2. No fixed release: DOWNGRADE to a release before 1.0.2 (Debian / Ubuntu)
apt-cache madison firebird sudo apt install firebird=<VERSION_BEFORE_1.0.2> sudo apt-mark hold firebird
2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)
dnf --showduplicates list firebird sudo dnf downgrade firebird-<VERSION_BEFORE_1.0.2> sudo dnf versionlock add firebird
Downgrade risk
Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.
After downgrade
Restart the service, and keep the package held until a fixed release ships.
Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2003-0197?

interbase: downgrade or apply the listed mitigation; firebird: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2003-0197 being exploited?

CVE-2003-0197 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2003-0197 affect?

CVE-2003-0197 affects interbase, firebird. Severity is high (CVSS 7.2). Buffer overflow gds_lock_mgr of Interbase Database 6.x allows local users to gain privileges via a long ISC_LOCK_ENV environment variable (INTERBASE_LOCK).

How urgent is CVE-2003-0197?

Priority 41/100. High severity; Public exploit reference

Related CVEs

References

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