Off-by-one error in the krb5_encode_krbsecretkey function in…
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Medium
- Impact type
- Code execution
- Confidentiality · integrity · availability
- Complete · Complete · Complete
- Fix status
- Fixed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-189 and the CVSS impact.
Summary
Off-by-one error in the krb5_encode_krbsecretkey function in plugins/kdb/ldap/libkdb_ldap/ldap_principal2.c in the LDAP KDB module in kadmind in MIT Kerberos 5 (aka krb5) 1.6.x through 1.11.x before 1.11.6 and 1.12.x before 1.12.2 allows remote authenticated users to cause a denial of service (buffer overflow) or possibly execute arbitrary code via a series of "cpw -keepold" commands.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 30
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:mit:kerberos_5:1.6:*:*:*:*:*:*:* | 1.6 | Vulnerable | moos-ivp |
| cpe:2.3:a:mit:kerberos_5:1.6.1:*:*:*:*:*:*:* | 1.6.1 | Vulnerable | moos-ivp |
| cpe:2.3:a:mit:kerberos_5:1.6.2:*:*:*:*:*:*:* | 1.6.2 | Vulnerable | moos-ivp |
| cpe:2.3:a:mit:kerberos_5:1.7:*:*:*:*:*:*:* | 1.7 | Vulnerable | moos-ivp |
| cpe:2.3:a:mit:kerberos_5:1.7.1:*:*:*:*:*:*:* | 1.7.1 | Vulnerable | moos-ivp |
| cpe:2.3:a:mit:kerberos_5:1.8:*:*:*:*:*:*:* | 1.8 | Vulnerable | moos-ivp |
| cpe:2.3:a:mit:kerberos_5:1.8.1:*:*:*:*:*:*:* | 1.8.1 | Vulnerable | moos-ivp |
| cpe:2.3:a:mit:kerberos_5:1.8.2:*:*:*:*:*:*:* | 1.8.2 | Vulnerable | moos-ivp |
| cpe:2.3:a:mit:kerberos_5:1.8.3:*:*:*:*:*:*:* | 1.8.3 | Vulnerable | moos-ivp |
| cpe:2.3:a:mit:kerberos_5:1.8.4:*:*:*:*:*:*:* | 1.8.4 | Vulnerable | moos-ivp |
- cpe:2.3:a:mit:kerberos_5:1.6:*:*:*:*:*:*:* Versions 1.6 Vulnerable ·moos-ivp
- cpe:2.3:a:mit:kerberos_5:1.6.1:*:*:*:*:*:*:* Versions 1.6.1 Vulnerable ·moos-ivp
- cpe:2.3:a:mit:kerberos_5:1.6.2:*:*:*:*:*:*:* Versions 1.6.2 Vulnerable ·moos-ivp
- cpe:2.3:a:mit:kerberos_5:1.7:*:*:*:*:*:*:* Versions 1.7 Vulnerable ·moos-ivp
- cpe:2.3:a:mit:kerberos_5:1.7.1:*:*:*:*:*:*:* Versions 1.7.1 Vulnerable ·moos-ivp
- cpe:2.3:a:mit:kerberos_5:1.8:*:*:*:*:*:*:* Versions 1.8 Vulnerable ·moos-ivp
- cpe:2.3:a:mit:kerberos_5:1.8.1:*:*:*:*:*:*:* Versions 1.8.1 Vulnerable ·moos-ivp
- cpe:2.3:a:mit:kerberos_5:1.8.2:*:*:*:*:*:*:* Versions 1.8.2 Vulnerable ·moos-ivp
- cpe:2.3:a:mit:kerberos_5:1.8.3:*:*:*:*:*:*:* Versions 1.8.3 Vulnerable ·moos-ivp
- cpe:2.3:a:mit:kerberos_5:1.8.4:*:*:*:*:*:*:* Versions 1.8.4 Vulnerable ·moos-ivp
Show 20 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:mit:kerberos_5:1.8.5:*:*:*:*:*:*:* | 1.8.5 | Vulnerable | moos-ivp |
| cpe:2.3:a:mit:kerberos_5:1.8.6:*:*:*:*:*:*:* | 1.8.6 | Vulnerable | moos-ivp |
| cpe:2.3:a:mit:kerberos_5:1.9:*:*:*:*:*:*:* | 1.9 | Vulnerable | moos-ivp |
| cpe:2.3:a:mit:kerberos_5:1.9.1:*:*:*:*:*:*:* | 1.9.1 | Vulnerable | moos-ivp |
| cpe:2.3:a:mit:kerberos_5:1.9.2:*:*:*:*:*:*:* | 1.9.2 | Vulnerable | moos-ivp |
| cpe:2.3:a:mit:kerberos_5:1.9.3:*:*:*:*:*:*:* | 1.9.3 | Vulnerable | moos-ivp |
| cpe:2.3:a:mit:kerberos_5:1.9.4:*:*:*:*:*:*:* | 1.9.4 | Vulnerable | moos-ivp |
| cpe:2.3:a:mit:kerberos_5:1.10:*:*:*:*:*:*:* | 1.10 | Vulnerable | moos-ivp |
| cpe:2.3:a:mit:kerberos_5:1.10.1:*:*:*:*:*:*:* | 1.10.1 | Vulnerable | moos-ivp |
| cpe:2.3:a:mit:kerberos_5:1.10.2:*:*:*:*:*:*:* | 1.10.2 | Vulnerable | moos-ivp |
| cpe:2.3:a:mit:kerberos_5:1.10.3:*:*:*:*:*:*:* | 1.10.3 | Vulnerable | moos-ivp |
| cpe:2.3:a:mit:kerberos_5:1.10.4:*:*:*:*:*:*:* | 1.10.4 | Vulnerable | moos-ivp |
| cpe:2.3:a:mit:kerberos_5:1.11:*:*:*:*:*:*:* | 1.11 | Vulnerable | moos-ivp |
| cpe:2.3:a:mit:kerberos_5:1.11.1:*:*:*:*:*:*:* | 1.11.1 | Vulnerable | moos-ivp |
| cpe:2.3:a:mit:kerberos_5:1.11.2:*:*:*:*:*:*:* | 1.11.2 | Vulnerable | moos-ivp |
| cpe:2.3:a:mit:kerberos_5:1.11.3:*:*:*:*:*:*:* | 1.11.3 | Vulnerable | moos-ivp |
| cpe:2.3:a:mit:kerberos_5:1.11.4:*:*:*:*:*:*:* | 1.11.4 | Vulnerable | moos-ivp |
| cpe:2.3:a:mit:kerberos_5:1.11.5:*:*:*:*:*:*:* | 1.11.5 | Vulnerable | moos-ivp |
| cpe:2.3:a:mit:kerberos_5:1.12:*:*:*:*:*:*:* | 1.12 | Vulnerable | moos-ivp |
| cpe:2.3:a:mit:kerberos_5:1.12.1:*:*:*:*:*:*:* | 1.12.1 | Vulnerable | moos-ivp |
- cpe:2.3:a:mit:kerberos_5:1.8.5:*:*:*:*:*:*:* Versions 1.8.5 Vulnerable ·moos-ivp
- cpe:2.3:a:mit:kerberos_5:1.8.6:*:*:*:*:*:*:* Versions 1.8.6 Vulnerable ·moos-ivp
- cpe:2.3:a:mit:kerberos_5:1.9:*:*:*:*:*:*:* Versions 1.9 Vulnerable ·moos-ivp
- cpe:2.3:a:mit:kerberos_5:1.9.1:*:*:*:*:*:*:* Versions 1.9.1 Vulnerable ·moos-ivp
- cpe:2.3:a:mit:kerberos_5:1.9.2:*:*:*:*:*:*:* Versions 1.9.2 Vulnerable ·moos-ivp
- cpe:2.3:a:mit:kerberos_5:1.9.3:*:*:*:*:*:*:* Versions 1.9.3 Vulnerable ·moos-ivp
- cpe:2.3:a:mit:kerberos_5:1.9.4:*:*:*:*:*:*:* Versions 1.9.4 Vulnerable ·moos-ivp
- cpe:2.3:a:mit:kerberos_5:1.10:*:*:*:*:*:*:* Versions 1.10 Vulnerable ·moos-ivp
- cpe:2.3:a:mit:kerberos_5:1.10.1:*:*:*:*:*:*:* Versions 1.10.1 Vulnerable ·moos-ivp
- cpe:2.3:a:mit:kerberos_5:1.10.2:*:*:*:*:*:*:* Versions 1.10.2 Vulnerable ·moos-ivp
- cpe:2.3:a:mit:kerberos_5:1.10.3:*:*:*:*:*:*:* Versions 1.10.3 Vulnerable ·moos-ivp
- cpe:2.3:a:mit:kerberos_5:1.10.4:*:*:*:*:*:*:* Versions 1.10.4 Vulnerable ·moos-ivp
- cpe:2.3:a:mit:kerberos_5:1.11:*:*:*:*:*:*:* Versions 1.11 Vulnerable ·moos-ivp
- cpe:2.3:a:mit:kerberos_5:1.11.1:*:*:*:*:*:*:* Versions 1.11.1 Vulnerable ·moos-ivp
- cpe:2.3:a:mit:kerberos_5:1.11.2:*:*:*:*:*:*:* Versions 1.11.2 Vulnerable ·moos-ivp
- cpe:2.3:a:mit:kerberos_5:1.11.3:*:*:*:*:*:*:* Versions 1.11.3 Vulnerable ·moos-ivp
- cpe:2.3:a:mit:kerberos_5:1.11.4:*:*:*:*:*:*:* Versions 1.11.4 Vulnerable ·moos-ivp
- cpe:2.3:a:mit:kerberos_5:1.11.5:*:*:*:*:*:*:* Versions 1.11.5 Vulnerable ·moos-ivp
- cpe:2.3:a:mit:kerberos_5:1.12:*:*:*:*:*:*:* Versions 1.12 Vulnerable ·moos-ivp
- cpe:2.3:a:mit:kerberos_5:1.12.1:*:*:*:*:*:*:* Versions 1.12.1 Vulnerable ·moos-ivp
Remediation
Red Hat 3 advisories
- RHSA-2015:0439 Released 2015-03-05 · Red Hat rating Moderatekrb5 security, bug fix and enhancement update
- Red Hat Enterprise Linux Client (v. 7) krb5-1.12.2-14.el7, krb5-libs-1.12.2-14.el7, krb5-pkinit-1.12.2-14.el7 +1
- Red Hat Enterprise Linux Client Optional (v. 7) krb5-devel-1.12.2-14.el7, krb5-server-1.12.2-14.el7, krb5-server-ldap-1.12.2-14.el7
- Red Hat Enterprise Linux ComputeNode (v. 7) krb5-1.12.2-14.el7, krb5-libs-1.12.2-14.el7, krb5-pkinit-1.12.2-14.el7 +1
- Red Hat Enterprise Linux ComputeNode Optional (v. 7) krb5-devel-1.12.2-14.el7, krb5-server-1.12.2-14.el7, krb5-server-ldap-1.12.2-14.el7
- Red Hat Enterprise Linux Server (v. 7) krb5-1.12.2-14.el7, krb5-devel-1.12.2-14.el7, krb5-devel-1.12.2-14.el7.ppc +6
- Red Hat Enterprise Linux Workstation (v. 7) krb5-1.12.2-14.el7, krb5-devel-1.12.2-14.el7, krb5-libs-1.12.2-14.el7 +4
- RHSA-2014:1389 Released 2014-10-13 · Red Hat rating Moderatekrb5 security and bug fix update
- Red Hat Enterprise Linux Desktop (v. 6) krb5-1.10.3-33.el6, krb5-libs-1.10.3-33.el6, krb5-pkinit-openssl-1.10.3-33.el6 +1
- Red Hat Enterprise Linux Desktop Optional (v. 6) krb5-devel-1.10.3-33.el6, krb5-server-1.10.3-33.el6, krb5-server-ldap-1.10.3-33.el6
- Red Hat Enterprise Linux HPC Node (v. 6) krb5-1.10.3-33.el6, krb5-libs-1.10.3-33.el6, krb5-pkinit-openssl-1.10.3-33.el6 +1
- Red Hat Enterprise Linux HPC Node Optional (v. 6) krb5-devel-1.10.3-33.el6, krb5-server-1.10.3-33.el6, krb5-server-ldap-1.10.3-33.el6
- Red Hat Enterprise Linux Server (v. 6) krb5-1.10.3-33.el6, krb5-devel-1.10.3-33.el6, krb5-devel-1.10.3-33.el6.ppc +7
- Red Hat Enterprise Linux Workstation (v. 6) krb5-1.10.3-33.el6, krb5-devel-1.10.3-33.el6, krb5-libs-1.10.3-33.el6 +4
- RHSA-2014:1255 Released 2014-09-17 · Red Hat rating Moderatekrb5 security update
- Red Hat Enterprise Linux (v. 5 server) krb5-1.6.1-80.el5_11, krb5-devel-1.6.1-80.el5_11, krb5-devel-1.6.1-80.el5_11.i386 +18
- Red Hat Enterprise Linux Desktop (v. 5 client) krb5-1.6.1-80.el5_11, krb5-libs-1.6.1-80.el5_11, krb5-libs-1.6.1-80.el5_11.i386 +2
- Red Hat Enterprise Linux Desktop Workstation (v. 5 client) krb5-1.6.1-80.el5_11, krb5-devel-1.6.1-80.el5_11, krb5-devel-1.6.1-80.el5_11.i386 +4
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux (v. 5 server) | Fixed | RHSA-2014:1255 |
| Red Hat Enterprise Linux Client (v. 7) | Fixed | RHSA-2015:0439 |
| Red Hat Enterprise Linux Client Optional (v. 7) | Fixed | RHSA-2015:0439 |
| Red Hat Enterprise Linux ComputeNode (v. 7) | Fixed | RHSA-2015:0439 |
| Red Hat Enterprise Linux ComputeNode Optional (v. 7) | Fixed | RHSA-2015:0439 |
| Red Hat Enterprise Linux Desktop (v. 5 client) | Fixed | RHSA-2014:1255 |
| Red Hat Enterprise Linux Desktop (v. 6) | Fixed | RHSA-2014:1389 |
| Red Hat Enterprise Linux Desktop Optional (v. 6) | Fixed | RHSA-2014:1389 |
| Red Hat Enterprise Linux Desktop Workstation (v. 5 client) | Fixed | RHSA-2014:1255 |
| Red Hat Enterprise Linux HPC Node (v. 6) | Fixed | RHSA-2014:1389 |
| Red Hat Enterprise Linux HPC Node Optional (v. 6) | Fixed | RHSA-2014:1389 |
| Red Hat Enterprise Linux Server (v. 6) | Fixed | RHSA-2014:1389 |
| Red Hat Enterprise Linux Server (v. 7) | Fixed | RHSA-2015:0439 |
| Red Hat Enterprise Linux Workstation (v. 6) | Fixed | RHSA-2014:1389 |
| Red Hat Enterprise Linux Workstation (v. 7) | Fixed | RHSA-2015:0439 |
Timeline
- 2026-10-02 Threatist record created from CVE-2014-4345
- 2026-10-03 Alias added: GHSA-j7xf-33rr-9jmv
References
Advisory 10
Other 10
- https://github.com/krb5/krb5/commit/dc7ed55c689d57de7f7408b34631bf06fec9dab1
- http://krbdev.mit.edu/rt/Ticket/Display.html?id=7980
- http://linux.oracle.com/errata/ELSA-2014-1255.html
- http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
- https://blogs.oracle.com/sunsecurity/entry/cve_2014_4345_numeric_errors
- https://bugzilla.redhat.com/show_bug.cgi?id=1128157
- 109908
- http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10705
- https://github.com/krb5/krb5/pull/181
- http://advisories.mageia.org/MGASA-2014-0345.html
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- TI-2001-00539 Buffer overflow in BSD-based telnetd telnet daemon on various operating systems allows… CVSS 2.0HIGH 10.0
- TI-2026-29130 NULL pointer dereference in moos-ivp Kerberos 5 CVSS 3.1HIGH 7.5
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- TI-2011-00268 The process_chpw_request function in schpw.c in the password-changing functionality in… CVSS 2.0HIGH 10.0
- TI-2001-00245 Buffer overflows in BSD-based FTP servers allows remote attackers to execute arbitrary… CVSS 2.0HIGH 10.0
Sources
- CVE-2014-4345 · CVE Program
- CVE-2014-4345 · NVD
- FIRST EPSS
- GHSA-j7xf-33rr-9jmv · GitHub Advisory Database · CC BY 4.0
- CVE-2014-4345 · Red Hat security data · CC BY 4.0
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