security flaw
Published Mar 21, 2003
7.5
HIGHCVSS 2.0
EPSS 4.28%
Description
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.
Affected products
No data.
No data.
Red Hat Enterprise Linux AS (Advanced Server) version 2.1
n/a
Fixed · RHSA-2003:052
Red Hat Enterprise Linux ES version 2.1
n/a
Fixed · RHSA-2003:052
Red Hat Enterprise Linux WS version 2.1
n/a
Fixed · RHSA-2003:052
Red Hat Linux 6.2
n/a
Fixed · RHSA-2003:051
Red Hat Linux 7.0
n/a
Fixed · RHSA-2003:051
Red Hat Linux 7.1
n/a
Fixed · RHSA-2003:051
Red Hat Linux 7.1
n/a
Fixed · RHSA-2003:168
Red Hat Linux 7.2
n/a
Fixed · RHSA-2003:051
Red Hat Linux 7.3
n/a
Fixed · RHSA-2003:051
Red Hat Linux 8.0
n/a
Fixed · RHSA-2003:051
Red Hat Linux 9
n/a
Fixed · RHSA-2003:091
Red Hat Linux Advanced Workstation 2.1
n/a
Fixed · RHSA-2003:052
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux AS (Advanced Server) version 2.1 | n/a | Fixed | RHSA-2003:052 |
| Red Hat Enterprise Linux ES version 2.1 | n/a | Fixed | RHSA-2003:052 |
| Red Hat Enterprise Linux WS version 2.1 | n/a | Fixed | RHSA-2003:052 |
| Red Hat Linux 6.2 | n/a | Fixed | RHSA-2003:051 |
| Red Hat Linux 7.0 | n/a | Fixed | RHSA-2003:051 |
| Red Hat Linux 7.1 | n/a | Fixed | RHSA-2003:051 |
| Red Hat Linux 7.1 | n/a | Fixed | RHSA-2003:168 |
| Red Hat Linux 7.2 | n/a | Fixed | RHSA-2003:051 |
| Red Hat Linux 7.3 | n/a | Fixed | RHSA-2003:051 |
| Red Hat Linux 8.0 | n/a | Fixed | RHSA-2003:051 |
| Red Hat Linux 9 | n/a | Fixed | RHSA-2003:091 |
| Red Hat Linux Advanced Workstation 2.1 | n/a | Fixed | RHSA-2003:052 |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:N/C:P/I:P/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (13 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 4.28% (0.04284) | 90.80th | v5 (v2026.06.15) |
| Jun 15, 2026 | 4.28% (0.04284) | 89.80th | v5 (v2026.06.15) |
| Mar 30, 2025 | 5.64% (0.05644) | 89.41th | v4 (v2025.03.14) |
| Mar 29, 2025 | 6.82% (0.06816) | 85.19th | v4 (v2025.03.14) |
| Mar 17, 2025 | 5.64% (0.05644) | 89.66th | v4 (v2025.03.14) |
| Dec 17, 2024 | 6.96% (0.06962) | 93.87th | v3 (v2023.03.01) |
| Dec 12, 2024 | 2.59% (0.02590) | 90.66th | v3 (v2023.03.01) |
| Apr 5, 2023 | 1.84% (0.01843) | 86.49th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.59% (0.01588) | 85.28th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.54% (0.01537) | 74.52th | v2 (v2022.01.01) |
| Feb 23, 2023 | 1.54% (0.01537) | 74.48th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.54% (0.01537) | 72.41th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.54% (0.01537) | 51.33th | v2 (v2022.01.01) |
No CWE recorded.
References (16)
- http://marc.info/?l=bugtraq&m=104791775804776&w=2 mailing-listx_refsource_BUGTRAQ
- http://web.mit.edu/kerberos/www/advisories/MITKRB5-SA-2003-004-krb4.txt x_refsource_CONFIRMPatchVendor Advisory
- http://www.debian.org/security/2003/dsa-266 vendor-advisoryx_refsource_DEBIANPatchVendor Advisory
- http://www.debian.org/security/2003/dsa-269 vendor-advisoryx_refsource_DEBIAN
- http://www.debian.org/security/2003/dsa-273 vendor-advisoryx_refsource_DEBIAN
- http://www.kb.cert.org/vuls/id/623217 third-party-advisoryx_refsource_CERT-VNPatchThird Party AdvisoryUS Government Resource
- http://www.redhat.com/support/errata/RHSA-2003-051.html vendor-advisoryx_refsource_REDHAT
- http://www.redhat.com/support/errata/RHSA-2003-052.html vendor-advisoryx_refsource_REDHAT
- http://www.redhat.com/support/errata/RHSA-2003-091.html vendor-advisoryx_refsource_REDHAT
- http://www.securityfocus.com/archive/1/316960/30/25250/threaded mailing-listx_refsource_BUGTRAQ
- http://www.securityfocus.com/bid/7113 vdb-entryx_refsource_BID
- https://access.redhat.com/security/cve/CVE-2003-0138 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1616981 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2003-0138
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A248 vdb-entrysignaturex_refsource_OVAL
- https://www.cve.org/CVERecord?id=CVE-2003-0138
Change history (0)
No recorded changes yet.