krb5: denial of service flaws when handling RFC 1964 tokens
Published Jul 20, 2014
5.0
MEDIUMCVSS 2.0
EPSS 6.52%
Description
MIT Kerberos 5 (aka krb5) 1.7.x through 1.12.x before 1.12.2 allows remote attackers to cause a denial of service (buffer over-read or NULL pointer dereference, and application crash) by injecting invalid tokens into a GSSAPI application session.
Affected products
No data.
Configuration 1
- 7.0
Configuration 2
- 5-1.8
- 5-1.10.5
- 5-1.10.6
- 5-1.10.7
- 1.7
- 1.7.1
- 1.8
- 1.8.1
- 1.8.2
- 1.8.3
- 1.8.4
- 1.8.5
- 1.8.6
- 1.9
- 1.9.1
- 1.9.2
- 1.9.3
- 1.9.4
- 1.10
- 1.10.1
- 1.10.2
- 1.10.3
- 1.10.4
- 1.11
- 1.11.1
- 1.11.2
- 1.11.3
- 1.11.4
- 1.12
- 1.12.1
Configuration 3
- 7.0
- 7.0
- 7.0
- 7.0
No data.
Red Hat Enterprise Linux 6
krb5-0:1.10.3-33.el6
Fixed · RHSA-2014:1389
Red Hat Enterprise Linux 7
krb5-0:1.12.2-14.el7
Fixed · RHSA-2015:0439
Red Hat Enterprise Linux 5
krb5
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 6 | krb5-0:1.10.3-33.el6 | Fixed | RHSA-2014:1389 |
| Red Hat Enterprise Linux 7 | krb5-0:1.12.2-14.el7 | Fixed | RHSA-2015:0439 |
| Red Hat Enterprise Linux 5 | krb5 | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue did not affect the version of krb5 as shipped with Red Hat Enterprise Linux 5.
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 (13 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 6.52% (0.06523) | 93.58th | v5 (v2026.06.15) |
| Jun 15, 2026 | 6.52% (0.06523) | 92.88th | v5 (v2026.06.15) |
| Mar 30, 2025 | 8.14% (0.08139) | 91.36th | v4 (v2025.03.14) |
| Mar 29, 2025 | 9.89% (0.09890) | 88.24th | v4 (v2025.03.14) |
| Mar 17, 2025 | 8.14% (0.08139) | 91.54th | v4 (v2025.03.14) |
| Dec 17, 2024 | 24.04% (0.24037) | 96.61th | v3 (v2023.03.01) |
| Jun 1, 2024 | 19.61% (0.19610) | 96.31th | v3 (v2023.03.01) |
| Mar 1, 2024 | 27.72% (0.27723) | 96.67th | v3 (v2023.03.01) |
| Jan 14, 2024 | 22.80% (0.22803) | 96.08th | v3 (v2023.03.01) |
| Mar 7, 2023 | 23.65% (0.23648) | 95.79th | 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 (16)
- http://advisories.mageia.org/MGASA-2014-0345.html x_refsource_CONFIRMThird Party Advisory
- http://krbdev.mit.edu/rt/Ticket/Display.html?id=7949 x_refsource_CONFIRMIssue TrackingVendor Advisory
- http://rhn.redhat.com/errata/RHSA-2015-0439.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- http://secunia.com/advisories/59102 third-party-advisoryx_refsource_SECUNIANot Applicable
- http://secunia.com/advisories/60082 third-party-advisoryx_refsource_SECUNIANot Applicable
- http://www.debian.org/security/2014/dsa-3000 vendor-advisoryx_refsource_DEBIANThird Party Advisory
- http://www.mandriva.com/security/advisories?name=MDVSA-2014:165 vendor-advisoryx_refsource_MANDRIVAThird Party Advisory
- http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html x_refsource_CONFIRMPatchThird Party AdvisoryVDB Entry
- http://www.securityfocus.com/bid/68908 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1030706 vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
- https://access.redhat.com/security/cve/CVE-2014-4342 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1120581 Issue Tracking
- https://exchange.xforce.ibmcloud.com/vulnerabilities/94903 vdb-entryx_refsource_XFThird Party AdvisoryVDB Entry
- https://github.com/krb5/krb5/commit/e6ae703ae597d798e310368d52b8f38ee11c6a73 x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2014-4342
- https://www.cve.org/CVERecord?id=CVE-2014-4342
Change history (0)
No recorded changes yet.