security flaw
Published Oct 13, 2000
5.0
MEDIUMCVSS 2.0
EPSS 2.28%
Description
Kerberos 4 KDC program does not properly check for null termination of AUTH_MSG_KDC_REQUEST requests, which allows remote attackers to cause a denial of service via a malformed request.
Affected products
No data.
- 4.0
- 5.0
- 4.0
- 1.0
- 1.1
- 1.1.1
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
Red Hat statement
This issue was fixed in the following product: - Red Hat Linux 6.2 - RHSA-2000:031 (2000-06-09)
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:N/I:N/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 (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.28% (0.02284) | 82.54th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.28% (0.02284) | 80.84th | v5 (v2026.06.15) |
| Mar 17, 2025 | 1.33% (0.01332) | 78.62th | v4 (v2025.03.14) |
| Dec 12, 2024 | 1.03% (0.01030) | 84.52th | v3 (v2023.03.01) |
| Apr 4, 2024 | 1.03% (0.01030) | 83.55th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.03% (0.01030) | 81.55th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.21% (0.01213) | 66.61th | v2 (v2022.01.01) |
| Feb 17, 2023 | 1.21% (0.01213) | 66.22th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.21% (0.01213) | 64.21th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.21% (0.01213) | 40.54th | v2 (v2022.01.01) |
No CWE recorded.
References (9)
- http://archives.neohapsis.com/archives/bugtraq/2000-06/0064.html mailing-listx_refsource_BUGTRAQExploitPatchVendor Advisory
- http://ciac.llnl.gov/ciac/bulletins/k-051.shtml third-party-advisorygovernment-resourcex_refsource_CIAC
- http://web.mit.edu/kerberos/www/advisories/krb4kdc.txt x_refsource_CONFIRM
- http://www.cert.org/advisories/CA-2000-11.html third-party-advisoryx_refsource_CERTPatchThird Party AdvisoryUS Government Resource
- http://www.redhat.com/support/errata/RHSA-2000-031.html vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/security/cve/CVE-2000-0549 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1616492 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2000-0549
- https://www.cve.org/CVERecord?id=CVE-2000-0549
| Link | Providers | Tags |
|---|---|---|
| http://archives.neohapsis.com/archives/bugtraq/2000-06/0064.html | mailing-listx_refsource_BUGTRAQExploitPatchVendor Advisory | |
| http://ciac.llnl.gov/ciac/bulletins/k-051.shtml | third-party-advisorygovernment-resourcex_refsource_CIAC | |
| http://web.mit.edu/kerberos/www/advisories/krb4kdc.txt | x_refsource_CONFIRM | |
| http://www.cert.org/advisories/CA-2000-11.html | third-party-advisoryx_refsource_CERTPatchThird Party AdvisoryUS Government Resource | |
| http://www.redhat.com/support/errata/RHSA-2000-031.html | vendor-advisoryx_refsource_REDHAT | |
| https://access.redhat.com/security/cve/CVE-2000-0549 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1616492 | Issue Tracking | |
| https://nvd.nist.gov/vuln/detail/CVE-2000-0549 | ||
| https://www.cve.org/CVERecord?id=CVE-2000-0549 |
Change history (0)
No recorded changes yet.