CVE-2003-0138
Version 4 of the Kerberos protocol (krb4), as used in Heimdal and other packages, allows an...
Version 4 of the Kerberos protocol (krb4), as used in Heimdal and other packages, allows an attacker to impersonate any principal in a realm via a chosen-plaintext attack.
Exploit likelihood
What each source reports
NVD Score used
Version 4 of the Kerberos protocol (krb4), as used in Heimdal and other packages, allows an attacker to impersonate any principal in a realm via a chosen-plaintext attack.
- Record
CVE-2003-0138- CVSS 2.0
- 7.5 High
AV:N/AC:L/Au:N/C:P/I:P/A:P - Updated
- 2026-11-02
CVE List No score
Version 4 of the Kerberos protocol (krb4), as used in Heimdal and other packages, allows an attacker to impersonate any principal in a realm via a chosen-plaintext attack.
- Record
CVE-2003-0138- Updated
- 2026-11-02
EUVDEUVD-2003-0134 No score
Version 4 of the Kerberos protocol (krb4), as used in Heimdal and other packages, allows an attacker to impersonate any principal in a realm via a chosen-plaintext attack.
- Record
EUVD-2003-0134- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-qxpj-m267-3648 No score
Version 4 of the Kerberos protocol (krb4), as used in Heimdal and other packages, allows an...
Version 4 of the Kerberos protocol (krb4), as used in Heimdal and other packages, allows an attacker to impersonate any principal in a realm via a chosen-plaintext attack.
- Record
GHSA-qxpj-m267-3648- Updated
- 2026-11-02
OSV No score
Version 4 of the Kerberos protocol (krb4), as used in Heimdal and other packages, allows an attacker to impersonate any principal in a realm via a chosen-plaintext attack.
- Record
CVE-2003-0138- Updated
- 2026-11-02
OSVDEBIAN-CVE-2003-0138 No score
Version 4 of the Kerberos protocol (krb4), as used in Heimdal and other packages, allows an attacker to impersonate any principal in a realm via a chosen-plaintext attack.
- Record
DEBIAN-CVE-2003-0138- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
heimdalDebian:12 |
before 0.5.2-1 | 0.5.2-1 |
heimdalDebian:13 |
before 0.5.2-1 | 0.5.2-1 |
heimdalDebian:14 |
before 0.5.2-1 | 0.5.2-1 |
krb5Debian:12 |
before 1.2.7-3 | 1.2.7-3 |
krb5Debian:13 |
before 1.2.7-3 | 1.2.7-3 |
krb5Debian:14 |
before 1.2.7-3 | 1.2.7-3 |
krb5Debian:3.0 From an advisory covering 5 CVEs |
before 1.2.4-5woody4 | 1.2.4-5woody4 |
heimdalDebian:3.0 |
before 0.4e-7.woody.8, plus listed versions 0.2l-70.2l-7.60.4e-7.woody.1 |
0.4e-7.woody.8 |
krb4Debian:3.0 From an advisory covering 2 CVEs |
before 1.1-8-2.3, plus listed versions 0.9.9-20.9.9-30.9.9-41.0-21.0-2.21.0-2.31.1-8-2 |
1.1-8-2.3 |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, facts | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2003-0138 is a high vulnerability (CVSS 7.5) in Mit Kerberos, published March 21, 2003. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 4.28%, the 91st percentile. Fixed in heimdal 0.5.2-1.
References
debian.org/security/2003/dsa-269
redhat.com/support/errata/RHSA-2003-052.html
securityfocus.com/archive/1/316960/30/25250/threaded
web.mit.edu/kerberos/www/advisories/MITKRB5-SA-2003-004-krb4.txt
oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A248
Show 9 moreShow less
kb.cert.org/vuls/id/623217
marc.info?l=bugtraq&m=104791775804776&w=2
nvd.nist.gov/vuln/detail/CVE-2003-0138
github.com/advisories/GHSA-qxpj-m267-3648
security-tracker.debian.org/tracker/CVE-2003-0138