krb5: IAKERB context aliasing flaw
Published Nov 9, 2015
7.1
HIGHCVSS 2.0
EPSS 4.54%
Description
lib/gssapi/krb5/iakerb.c in MIT Kerberos 5 (aka krb5) before 1.14 relies on an inappropriate context handle, which allows remote attackers to cause a denial of service (incorrect pointer read and process crash) via a crafted IAKERB packet that is mishandled during a gss_inquire_context call.
Affected products
No data.
Configuration 1
- < 1.14
Configuration 2
- 42.1
- 13.1
- 13.2
- 12
- 12
- 12
Configuration 3
- 7.0
- 8.0
- 9.0
Configuration 4
- 12.04
- 14.04
- 15.04
- 15.10
No data.
Red Hat Enterprise Linux 4
krb5
Not affected
Red Hat Enterprise Linux 5
krb5
Not affected
Red Hat Enterprise Linux 6
krb5
Will not fix
Red Hat Enterprise Linux 7
krb5
Will not fix
| 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 | Will not fix | n/a |
| Red Hat Enterprise Linux 7 | krb5 | Will not fix | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
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:N/C:N/I:N/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 (15 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 4.54% (0.04543) | 91.27th | v5 (v2026.06.15) |
| Jun 15, 2026 | 4.54% (0.04543) | 90.32th | v5 (v2026.06.15) |
| May 13, 2026 | 10.77% (0.10768) | 93.41th | v4 (v2025.03.14) |
| Dec 28, 2025 | 8.28% (0.08283) | 91.95th | v4 (v2025.03.14) |
| Dec 27, 2025 | 10.77% (0.10768) | 93.14th | v4 (v2025.03.14) |
| Oct 28, 2025 | 8.28% (0.08283) | 91.85th | v4 (v2025.03.14) |
| Oct 27, 2025 | 10.77% (0.10768) | 93.02th | v4 (v2025.03.14) |
| Oct 1, 2025 | 8.28% (0.08283) | 91.95th | v4 (v2025.03.14) |
| Jun 27, 2025 | 10.77% (0.10768) | 92.97th | v4 (v2025.03.14) |
| Mar 17, 2025 | 15.85% (0.15854) | 94.24th | v4 (v2025.03.14) |
| Dec 17, 2024 | 13.17% (0.13166) | 95.53th | v3 (v2023.03.01) |
| Mar 7, 2023 | 16.99% (0.16993) | 95.17th | v3 (v2023.03.01) |
| Mar 6, 2023 | 2.17% (0.02172) | 80.77th | v2 (v2022.01.01) |
| Apr 1, 2022 | 2.17% (0.02172) | 78.91th | v2 (v2022.01.01) |
| Feb 4, 2022 | 2.17% (0.02172) | 57.73th | v2 (v2022.01.01) |
References (14)
- http://krbdev.mit.edu/rt/Ticket/Display.html?id=8244 x_refsource_CONFIRMVendor Advisory
- http://lists.opensuse.org/opensuse-security-announce/2015-11/msg00006.html vendor-advisoryx_refsource_SUSEMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2015-11/msg00014.html vendor-advisoryx_refsource_SUSEMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2015-11/msg00022.html vendor-advisoryx_refsource_SUSEMailing ListThird Party Advisory
- http://www.debian.org/security/2015/dsa-3395 vendor-advisoryx_refsource_DEBIANThird Party Advisory
- http://www.securityfocus.com/bid/90675 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1034084 vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
- http://www.ubuntu.com/usn/USN-2810-1 vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2015-2696 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1275869 Issue Tracking
- https://github.com/krb5/krb5/commit/e04f0283516e80d2f93366e0d479d13c9b5c8c2a x_refsource_CONFIRMPatchThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2015-2696
- https://security.gentoo.org/glsa/201611-14 vendor-advisoryx_refsource_GENTOOThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2015-2696
Change history (0)
No recorded changes yet.