CVE-2014-4345

CVE-2014-4345 is a high-severity vulnerability in Mit Kerberos 5 with a CVSS 2.0 base score of 8.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-189.

Key facts

• Severity: High (CVSS 2.0 base score 8.5)
• EPSS exploit prediction: 8% (94th percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-189
• Affected product: Mit Kerberos 5
• Published: 2014-08-14
• Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2014-4345?

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.

How severe is CVE-2014-4345?

CVE-2014-4345 has a CVSS 2.0 base score of 8.5, rated high severity.

Is CVE-2014-4345 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 8% (94th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2014-4345?

CVE-2014-4345 primarily affects Mit Kerberos 5. In total, 30 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2014-4345?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2014-4345 published?

CVE-2014-4345 was published on 2014-08-14 and last updated on 2026-06-17.

References

• http://advisories.mageia.org/MGASA-2014-0345.html
• http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10705
• http://krbdev.mit.edu/rt/Ticket/Display.html?id=7980
• http://linux.oracle.com/errata/ELSA-2014-1255.html
• http://lists.fedoraproject.org/pipermail/package-announce/2014-August/136640.html
• http://lists.fedoraproject.org/pipermail/package-announce/2014-August/137056.html
• http://lists.opensuse.org/opensuse-security-announce/2014-08/msg00009.html
• http://lists.opensuse.org/opensuse-updates/2014-08/msg00030.html
• http://rhn.redhat.com/errata/RHSA-2014-1255.html
• http://rhn.redhat.com/errata/RHSA-2015-0439.html
• http://secunia.com/advisories/59102
• http://secunia.com/advisories/59415
• http://secunia.com/advisories/59993
• http://secunia.com/advisories/60535
• http://secunia.com/advisories/60776
• http://secunia.com/advisories/61314
• http://secunia.com/advisories/61353
• http://security.gentoo.org/glsa/glsa-201412-53.xml
• http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2014-001.txt
• http://www.debian.org/security/2014/dsa-3000
• http://www.mandriva.com/security/advisories?name=MDVSA-2014:165
• http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
• http://www.osvdb.org/109908
• http://www.securityfocus.com/bid/69168
• http://www.securitytracker.com/id/1030705
• https://blogs.oracle.com/sunsecurity/entry/cve_2014_4345_numeric_errors
• https://bugzilla.redhat.com/show_bug.cgi?id=1128157
• https://exchange.xforce.ibmcloud.com/vulnerabilities/95212
• https://github.com/krb5/krb5/commit/dc7ed55c689d57de7f7408b34631bf06fec9dab1
• https://github.com/krb5/krb5/pull/181

Affected products (30)

• cpe:2.3:a:mit:kerberos_5:1.6:*:*:*:*:*:*:*
• cpe:2.3:a:mit:kerberos_5:1.6.1:*:*:*:*:*:*:*
• cpe:2.3:a:mit:kerberos_5:1.6.2:*:*:*:*:*:*:*
• cpe:2.3:a:mit:kerberos_5:1.7:*:*:*:*:*:*:*
• cpe:2.3:a:mit:kerberos_5:1.7.1:*:*:*:*:*:*:*
• cpe:2.3:a:mit:kerberos_5:1.8:*:*:*:*:*:*:*
• cpe:2.3:a:mit:kerberos_5:1.8.1:*:*:*:*:*:*:*
• cpe:2.3:a:mit:kerberos_5:1.8.2:*:*:*:*:*:*:*
• cpe:2.3:a:mit:kerberos_5:1.8.3:*:*:*:*:*:*:*
• cpe:2.3:a:mit:kerberos_5:1.8.4:*:*:*:*:*:*:*
• cpe:2.3:a:mit:kerberos_5:1.8.5:*:*:*:*:*:*:*
• cpe:2.3:a:mit:kerberos_5:1.8.6:*:*:*:*:*:*:*
• cpe:2.3:a:mit:kerberos_5:1.9:*:*:*:*:*:*:*
• cpe:2.3:a:mit:kerberos_5:1.9.1:*:*:*:*:*:*:*
• cpe:2.3:a:mit:kerberos_5:1.9.2:*:*:*:*:*:*:*
• cpe:2.3:a:mit:kerberos_5:1.9.3:*:*:*:*:*:*:*
• cpe:2.3:a:mit:kerberos_5:1.9.4:*:*:*:*:*:*:*
• cpe:2.3:a:mit:kerberos_5:1.10:*:*:*:*:*:*:*
• cpe:2.3:a:mit:kerberos_5:1.10.1:*:*:*:*:*:*:*
• cpe:2.3:a:mit:kerberos_5:1.10.2:*:*:*:*:*:*:*
• cpe:2.3:a:mit:kerberos_5:1.10.3:*:*:*:*:*:*:*
• cpe:2.3:a:mit:kerberos_5:1.10.4:*:*:*:*:*:*:*
• cpe:2.3:a:mit:kerberos_5:1.11:*:*:*:*:*:*:*
• cpe:2.3:a:mit:kerberos_5:1.11.1:*:*:*:*:*:*:*
• cpe:2.3:a:mit:kerberos_5:1.11.2:*:*:*:*:*:*:*
• cpe:2.3:a:mit:kerberos_5:1.11.3:*:*:*:*:*:*:*
• cpe:2.3:a:mit:kerberos_5:1.11.4:*:*:*:*:*:*:*
• cpe:2.3:a:mit:kerberos_5:1.11.5:*:*:*:*:*:*:*
• cpe:2.3:a:mit:kerberos_5:1.12:*:*:*:*:*:*:*
• cpe:2.3:a:mit:kerberos_5:1.12.1:*:*:*:*:*:*:*

More vulnerabilities in Mit Kerberos 5

• CVE-2011-0285 — Critical (CVSS 10.0): The process_chpw_request function in schpw.c in the password-changing functionality in kadmind in MIT Kerberos 5 (aka…
• CVE-2009-4212 — Critical (CVSS 10.0): Multiple integer underflows in the (1) AES and (2) RC4 decryption functionality in the crypto library in MIT Kerberos 5…
• CVE-2009-0846 — Critical (CVSS 10.0): The asn1_decode_generaltime function in lib/krb5/asn.1/asn1_decode.c in the ASN.1 GeneralizedTime decoder in MIT…
• CVE-2008-0947 — Critical (CVSS 10.0): Buffer overflow in the RPC library used by libgssrpc and kadmind in MIT Kerberos 5 (krb5) 1.4 through 1.6.3 allows…
• CVE-2007-5902 — Critical (CVSS 10.0): Integer overflow in the svcauth_gss_get_principal function in lib/rpc/svc_auth_gss.c in MIT Kerberos 5 (krb5) allows…
• CVE-2007-4743 — Critical (CVSS 10.0): The original patch for CVE-2007-3999 in svc_auth_gss.c in the RPCSEC_GSS RPC library in MIT Kerberos 5 (krb5) 1.4…

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