Certain weaknesses in the implementation of version 4 of the Kerberos protocol (krb4) in…
Priority MEDIUM 40Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- Partial · Partial · Partial
- Fix status
- Fixed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat.
Summary
Certain weaknesses in the implementation of version 4 of the Kerberos protocol (krb4) in the krb5 distribution, when triple-DES keys are used to key krb4 services, allow an attacker to create krb4 tickets for unauthorized principals using a cut-and-paste attack and "ticket splicing."
Why it matters now
EPSS 0.04284 91st percentileScored 2026-11-07
Fix Fixed Red Hat: 4 advisories
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
Red Hat 4 advisories
- RHSA-2003:168 Released 2003-04-29 · Red Hat rating Critical: : : Updated kerberos packages fix various vulnerabilities
- Red Hat Linux 7.1
- RHSA-2003:091 Released 2003-04-02 · Red Hat rating Critical: Updated kerberos packages fix various vulnerabilities
- Red Hat Linux 9
- RHSA-2003:052 Released 2003-03-27 · Red Hat rating Criticalkrb5 security update
- Red Hat Enterprise Linux AS (Advanced Server) version 2.1
- Red Hat Enterprise Linux ES version 2.1
- Red Hat Enterprise Linux WS version 2.1
- Red Hat Linux Advanced Workstation 2.1
Show 1 more Red Hat advisories
- RHSA-2003:051 Released 2003-03-26 · Red Hat rating Critical: Updated kerberos packages fix various vulnerabilities
- Red Hat Linux 6.2
- Red Hat Linux 7.0
- Red Hat Linux 7.1
- Red Hat Linux 7.2
- Red Hat Linux 7.3
- Red Hat Linux 8.0
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux AS (Advanced Server) version 2.1 | Fixed | RHSA-2003:052 |
| Red Hat Enterprise Linux ES version 2.1 | Fixed | RHSA-2003:052 |
| Red Hat Enterprise Linux WS version 2.1 | Fixed | RHSA-2003:052 |
| Red Hat Linux 6.2 | Fixed | RHSA-2003:051 |
| Red Hat Linux 7.0 | Fixed | RHSA-2003:051 |
| Red Hat Linux 7.1 | Fixed | RHSA-2003:051 |
| Red Hat Linux 7.2 | Fixed | RHSA-2003:051 |
| Red Hat Linux 7.3 | Fixed | RHSA-2003:051 |
| Red Hat Linux 8.0 | Fixed | RHSA-2003:051 |
| Red Hat Linux 9 | Fixed | RHSA-2003:091 |
| Red Hat Linux Advanced Workstation 2.1 | Fixed | RHSA-2003:052 |
Timeline
- 2026-10-02 Threatist record created from CVE-2003-0139
- 2026-10-03 Alias added: GHSA-h6r9-m8w5-h766
References
More moos-ivp Kerberos vulnerabilities
- TI-2001-00539 Buffer overflow in BSD-based telnetd telnet daemon on various operating systems allows… CVSS 2.0HIGH 10.0
- TI-2000-00389 Buffer overflow in krb_rd_req function in Kerberos 4 and 5 allows remote attackers to gain root privileges. CVSS 2.0HIGH 10.0
- TI-2004-00472 Multiple buffer overflows in krb5_aname_to_localname for MIT Kerberos 5 (krb5) 1.3.3 and… CVSS 2.0HIGH 10.0
- TI-2009-03997 Multiple integer underflows in the (1) AES and (2) RC4 decryption functionality in the… CVSS 2.0HIGH 10.0
- TI-2000-00391 Buffer overflow in krshd in Kerberos 5 allows remote attackers to gain root privileges. CVSS 2.0HIGH 10.0
- TI-2000-00390 Buffer overflow in krb425_conv_principal function in Kerberos 5 allows remote attackers to gain root privileges. CVSS 2.0HIGH 10.0
Sources
- CVE-2003-0139 · CVE Program
- CVE-2003-0139 · NVD
- FIRST EPSS
- GHSA-h6r9-m8w5-h766 · GitHub Advisory Database · CC BY 4.0
- CVE-2003-0139 · Red Hat security data · CC BY 4.0
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