krb5: IAKERB context export/import
Published Nov 13, 2015
8.5
HIGHCVSS 2.0
EPSS 2.89%
Description
The iakerb_gss_export_sec_context function in lib/gssapi/krb5/iakerb.c in MIT Kerberos 5 (aka krb5) 1.14 pre-release 2015-09-14 improperly accesses a certain pointer, which allows remote authenticated users to cause a denial of service (memory corruption) or possibly have unspecified other impact by interacting with an application that calls the gss_export_sec_context function. NOTE: this vulnerability exists because of an incorrect fix for CVE-2015-2696.
Affected products
No data.
- 1.14
No data.
Red Hat Enterprise Linux 4
krb5
Not affected
Red Hat Enterprise Linux 5
krb5
Not affected
Red Hat Enterprise Linux 6
krb5
Not affected
Red Hat Enterprise Linux 7
krb5
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 4 | krb5 | Not affected | n/a |
| Red Hat Enterprise Linux 5 | krb5 | Not affected | n/a |
| Red Hat Enterprise Linux 6 | krb5 | Not affected | n/a |
| Red Hat Enterprise Linux 7 | krb5 | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue did not affect the versions of krb5 as shipped with Red Hat Enterprise Linux 4, 5, 6, and 7.
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:M/Au:S/C:C/I:C/A:C
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 (12 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.89% (0.02891) | 86.41th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.89% (0.02891) | 85.04th | v5 (v2026.06.15) |
| Mar 30, 2025 | 1.58% (0.01582) | 79.88th | v4 (v2025.03.14) |
| Mar 29, 2025 | 2.93% (0.02932) | 77.35th | v4 (v2025.03.14) |
| Mar 17, 2025 | 1.58% (0.01582) | 80.33th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.72% (0.00720) | 81.25th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.72% (0.00720) | 79.98th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.72% (0.00720) | 77.55th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.13% (0.01132) | 56.11th | v2 (v2022.01.01) |
| Sep 22, 2022 | 1.13% (0.01132) | 54.59th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.13% (0.01132) | 52.58th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.13% (0.01132) | 30.65th | v2 (v2022.01.01) |
References (9)
- http://krbdev.mit.edu/rt/Ticket/Display.html?id=8273 x_refsource_CONFIRMVendor Advisory
- http://lists.opensuse.org/opensuse-updates/2015-11/msg00116.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-updates/2015-12/msg00124.html vendor-advisoryx_refsource_SUSE
- http://www.ubuntu.com/usn/USN-2810-1 vendor-advisoryx_refsource_UBUNTU
- https://access.redhat.com/security/cve/CVE-2015-2698 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1278951 Issue Tracking
- https://github.com/krb5/krb5/commit/3db8dfec1ef50ddd78d6ba9503185995876a39fd x_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2015-2698
- https://www.cve.org/CVERecord?id=CVE-2015-2698
| Link | Providers | Tags |
|---|---|---|
| http://krbdev.mit.edu/rt/Ticket/Display.html?id=8273 | x_refsource_CONFIRMVendor Advisory | |
| http://lists.opensuse.org/opensuse-updates/2015-11/msg00116.html | vendor-advisoryx_refsource_SUSE | |
| http://lists.opensuse.org/opensuse-updates/2015-12/msg00124.html | vendor-advisoryx_refsource_SUSE | |
| http://www.ubuntu.com/usn/USN-2810-1 | vendor-advisoryx_refsource_UBUNTU | |
| https://access.redhat.com/security/cve/CVE-2015-2698 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1278951 | Issue Tracking | |
| https://github.com/krb5/krb5/commit/3db8dfec1ef50ddd78d6ba9503185995876a39fd | x_refsource_CONFIRM | |
| https://nvd.nist.gov/vuln/detail/CVE-2015-2698 | ||
| https://www.cve.org/CVERecord?id=CVE-2015-2698 |
Change history (0)
No recorded changes yet.