krb5: unauthenticated denial of service in recvauth_common() and others
Published Feb 20, 2015
5.0
MEDIUMCVSS 2.0
EPSS 4.59%
Description
MIT Kerberos 5 (aka krb5) through 1.13.1 incorrectly expects that a krb5_read_message data field is represented as a string ending with a '\0' character, which allows remote attackers to (1) cause a denial of service (NULL pointer dereference) via a zero-byte version string or (2) cause a denial of service (out-of-bounds read) by omitting the '\0' character, related to appl/user_user/server.c and lib/krb5/krb/recvauth.c.
Affected products
No data.
- 1.1
- 1.2
- 1.2.1
- 1.2.2
- 1.2.3
- 1.2.4
- 1.2.5
- 1.2.6
- 1.2.7
- 1.2.8
- 1.3
- 1.3
- 1.3.1
- 1.3.2
- 1.3.3
- 1.3.4
- 1.3.5
- 1.3.6
- 1.4
- 1.4.1
- 1.4.2
- 1.4.3
- 1.4.4
- 1.5
- 1.5.1
- 1.5.2
- 1.5.3
- 1.6
- 1.6.1
- 1.6.2
- 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
- 1.11.5
- 1.12
- 1.12.1
- 1.12.2
- 1.13
- 1.13.1
No data.
Red Hat Enterprise Linux 6
krb5-0:1.10.3-37.el6_6
Fixed · RHSA-2015:0794
Red Hat Enterprise Linux 7
krb5-0:1.13.2-10.el7
Fixed · RHSA-2015:2154
Red Hat Enterprise Linux 5
krb5
Will not fix
Red Hat JBoss Enterprise Application Platform 6
jbossas
Not affected
Red Hat JBoss Enterprise Web Server 2
krb5
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 6 | krb5-0:1.10.3-37.el6_6 | Fixed | RHSA-2015:0794 |
| Red Hat Enterprise Linux 7 | krb5-0:1.13.2-10.el7 | Fixed | RHSA-2015:2154 |
| Red Hat Enterprise Linux 5 | krb5 | Will not fix | n/a |
| Red Hat JBoss Enterprise Application Platform 6 | jbossas | Not affected | 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.
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 (14 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 4.59% (0.04587) | 91.35th | v5 (v2026.06.15) |
| Jun 15, 2026 | 4.59% (0.04587) | 90.40th | v5 (v2026.06.15) |
| May 19, 2026 | 8.20% (0.08201) | 92.29th | v4 (v2025.03.14) |
| Dec 1, 2025 | 9.42% (0.09423) | 92.53th | v4 (v2025.03.14) |
| Nov 11, 2025 | 13.77% (0.13773) | 93.99th | v4 (v2025.03.14) |
| Nov 9, 2025 | 4.62% (0.04621) | 88.76th | v4 (v2025.03.14) |
| Mar 30, 2025 | 3.59% (0.03587) | 86.65th | v4 (v2025.03.14) |
| Mar 29, 2025 | 5.83% (0.05834) | 83.81th | v4 (v2025.03.14) |
| Mar 17, 2025 | 3.59% (0.03587) | 86.96th | v4 (v2025.03.14) |
| Dec 12, 2024 | 95.25% (0.95249) | 99.43th | v3 (v2023.03.01) |
| Mar 7, 2023 | 94.94% (0.94941) | 98.79th | 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 (14)
- http://krbdev.mit.edu/rt/Ticket/Display.html?id=8050 x_refsource_CONFIRMVendor Advisory
- http://lists.opensuse.org/opensuse-updates/2015-03/msg00061.html vendor-advisoryx_refsource_SUSE
- http://rhn.redhat.com/errata/RHSA-2015-0794.html vendor-advisoryx_refsource_REDHAT
- http://www.mandriva.com/security/advisories?name=MDVSA-2015:069 vendor-advisoryx_refsource_MANDRIVA
- http://www.oracle.com/technetwork/topics/security/bulletinjan2015-2370101.html x_refsource_CONFIRM
- http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html x_refsource_CONFIRM
- http://www.securityfocus.com/bid/74042 vdb-entryx_refsource_BID
- http://www.ubuntu.com/usn/USN-2810-1 vendor-advisoryx_refsource_UBUNTU
- https://access.redhat.com/security/cve/CVE-2014-5355 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1193939 Issue Tracking
- https://github.com/krb5/krb5/commit/102bb6ebf20f9174130c85c3b052ae104e5073ec x_refsource_CONFIRM
- https://lists.debian.org/debian-lts-announce/2018/01/msg00040.html mailing-listx_refsource_MLIST
- https://nvd.nist.gov/vuln/detail/CVE-2014-5355
- https://www.cve.org/CVERecord?id=CVE-2014-5355
Change history (0)
No recorded changes yet.