krb5: xdr_nullstring() doesn't check for terminating null character
Published Feb 13, 2016
5.3
MEDIUMCVSS 3.1
EPSS 3.66%
Description
The xdr_nullstring function in lib/kadm5/kadm_rpc_xdr.c in kadmind in MIT Kerberos 5 (aka krb5) before 1.13.4 and 1.14.x before 1.14.1 does not verify whether '\0' characters exist as expected, which allows remote authenticated users to obtain sensitive information or cause a denial of service (out-of-bounds read) via a crafted string.
Affected products
No data.
Configuration 1
- < 1.13.4
- ≥ 1.14 · < 1.14.1
Configuration 2
Configuration 3
- 7.0
- 8.0
Configuration 5
- 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:H/PR:L/UI:N/S:U/C:H/I:N/A:N
No CVSS v3.0 score for this CVE.
AV:N/AC:H/Au:S/C:P/I:N/A:N
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 | 3.66% (0.03657) | 89.26th | v5 (v2026.06.15) |
| Jun 15, 2026 | 3.66% (0.03657) | 88.14th | v5 (v2026.06.15) |
| Mar 30, 2025 | 1.15% (0.01145) | 76.52th | v4 (v2025.03.14) |
| Mar 29, 2025 | 2.36% (0.02356) | 74.87th | v4 (v2025.03.14) |
| Mar 17, 2025 | 1.15% (0.01145) | 76.99th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.73% (0.00731) | 81.40th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.73% (0.00731) | 80.15th | v3 (v2023.03.01) |
| Apr 6, 2023 | 0.73% (0.00731) | 77.92th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.80% (0.00802) | 79.00th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.81% (0.01815) | 77.08th | v2 (v2022.01.01) |
| Feb 23, 2023 | 1.81% (0.01815) | 77.03th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.81% (0.01815) | 75.00th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.81% (0.01815) | 54.30th | v2 (v2022.01.01) |
References (15)
- http://krbdev.mit.edu/rt/Ticket/Display.html?id=8341 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/bulletinapr2016-2952098.html x_refsource_CONFIRMThird Party Advisory
- http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html x_refsource_CONFIRMThird Party Advisory
- http://www.securityfocus.com/bid/82801 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1034914 vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
- https://access.redhat.com/security/cve/CVE-2015-8629 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1302617 Issue Tracking
- https://github.com/krb5/krb5/commit/df17a1224a3406f57477bcd372c61e04c0e5a5bb x_refsource_CONFIRMPatchThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2015-8629
- https://www.cve.org/CVERecord?id=CVE-2015-8629
Change history (0)
No recorded changes yet.