krb5: Memory leak caused by supplying a null principal name in request
Published Feb 13, 2016
6.5
MEDIUMCVSS 3.1
EPSS 4.64%
Description
Multiple memory leaks in kadmin/server/server_stubs.c in kadmind in MIT Kerberos 5 (aka krb5) before 1.13.4 and 1.14.x before 1.14.1 allow remote authenticated users to cause a denial of service (memory consumption) via a request specifying a NULL principal name.
Affected products
No data.
Configuration 1
- < 1.13.4
- ≥ 1.14 · < 1.14.1
Configuration 3
- 7.0
- 8.0
Configuration 4
- 6.0
- 7.0
- 6.7
- 7.2
- 7.3
- 7.4
- 7.5
- 7.6
- 7.7
- 6.0
- 7.0
- 7.2
- 7.3
- 7.4
- 7.6
- 7.7
- 7.2
- 7.3
- 7.6
- 7.7
- 6.0
- 7.0
No data.
Red Hat Enterprise Linux 6
krb5-0:1.10.3-42z1.el6_7
Fixed · RHSA-2016:0493
Red Hat Enterprise Linux 7
krb5-0:1.13.2-12.el7_2
Fixed · RHSA-2016:0532
Red Hat Enterprise Linux 5
krb5
Will not fix
Red Hat JBoss Enterprise Web Server 2
krb5
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 6 | krb5-0:1.10.3-42z1.el6_7 | Fixed | RHSA-2016:0493 |
| Red Hat Enterprise Linux 7 | krb5-0:1.13.2-12.el7_2 | Fixed | RHSA-2016:0532 |
| Red Hat Enterprise Linux 5 | krb5 | Will not fix | n/a |
| Red Hat JBoss Enterprise Web Server 2 | krb5 | Not affected | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:S/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 (15 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 4.64% (0.04643) | 91.44th | v5 (v2026.06.15) |
| Jun 15, 2026 | 4.64% (0.04643) | 90.52th | v5 (v2026.06.15) |
| Mar 30, 2025 | 2.14% (0.02141) | 82.67th | v4 (v2025.03.14) |
| Mar 29, 2025 | 5.37% (0.05368) | 83.11th | v4 (v2025.03.14) |
| Mar 17, 2025 | 2.14% (0.02141) | 83.03th | v4 (v2025.03.14) |
| Dec 12, 2024 | 6.40% (0.06404) | 93.95th | v3 (v2023.03.01) |
| Dec 5, 2023 | 6.40% (0.06404) | 92.92th | v3 (v2023.03.01) |
| Sep 30, 2023 | 6.41% (0.06411) | 92.82th | v3 (v2023.03.01) |
| May 15, 2023 | 4.84% (0.04845) | 91.51th | v3 (v2023.03.01) |
| Apr 6, 2023 | 3.48% (0.03478) | 90.08th | v3 (v2023.03.01) |
| Mar 7, 2023 | 4.84% (0.04845) | 91.47th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.65% (0.01649) | 75.99th | v2 (v2022.01.01) |
| Feb 23, 2023 | 1.65% (0.01649) | 75.95th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.65% (0.01649) | 73.90th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.65% (0.01649) | 52.77th | v2 (v2022.01.01) |
References (13)
- http://krbdev.mit.edu/rt/Ticket/Display.html?id=8343 x_refsource_CONFIRMVendor Advisory
- http://lists.opensuse.org/opensuse-updates/2016-02/msg00059.html vendor-advisoryx_refsource_SUSEMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-updates/2016-02/msg00110.html vendor-advisoryx_refsource_SUSEMailing ListThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-0493.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-0532.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- http://www.debian.org/security/2016/dsa-3466 vendor-advisoryx_refsource_DEBIANThird Party Advisory
- http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html x_refsource_CONFIRMThird Party Advisory
- http://www.securitytracker.com/id/1034916 vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
- https://access.redhat.com/security/cve/CVE-2015-8631 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1302642 Issue Tracking
- https://github.com/krb5/krb5/commit/83ed75feba32e46f736fcce0d96a0445f29b96c2 x_refsource_CONFIRMPatchThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2015-8631
- https://www.cve.org/CVERecord?id=CVE-2015-8631
Change history (0)
No recorded changes yet.