CVE-2014-4345: Buffer Overflow
First published: Fri Aug 08 2014(Updated: )
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.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/krb5 | <1.11.6 | 1.11.6 |
| redhat/krb5 | <1.12.2 | 1.12.2 |
| MIT Kerberos 5 Application | =1.6 | |
| MIT Kerberos 5 Application | =1.6.1 | |
| MIT Kerberos 5 Application | =1.6.2 | |
| MIT Kerberos 5 Application | =1.7 | |
| MIT Kerberos 5 Application | =1.7.1 | |
| MIT Kerberos 5 Application | =1.8 | |
| MIT Kerberos 5 Application | =1.8.1 | |
| MIT Kerberos 5 Application | =1.8.2 | |
| MIT Kerberos 5 Application | =1.8.3 | |
| MIT Kerberos 5 Application | =1.8.4 | |
| MIT Kerberos 5 Application | =1.8.5 | |
| MIT Kerberos 5 Application | =1.8.6 | |
| MIT Kerberos 5 Application | =1.9 | |
| MIT Kerberos 5 Application | =1.9.1 | |
| MIT Kerberos 5 Application | =1.9.2 | |
| MIT Kerberos 5 Application | =1.9.3 | |
| MIT Kerberos 5 Application | =1.9.4 | |
| MIT Kerberos 5 Application | =1.10 | |
| MIT Kerberos 5 Application | =1.10.1 | |
| MIT Kerberos 5 Application | =1.10.2 | |
| MIT Kerberos 5 Application | =1.10.3 | |
| MIT Kerberos 5 Application | =1.10.4 | |
| MIT Kerberos 5 Application | =1.11 | |
| MIT Kerberos 5 Application | =1.11.1 | |
| MIT Kerberos 5 Application | =1.11.2 | |
| MIT Kerberos 5 Application | =1.11.3 | |
| MIT Kerberos 5 Application | =1.11.4 | |
| MIT Kerberos 5 Application | =1.11.5 | |
| MIT Kerberos 5 Application | =1.12 | |
| MIT Kerberos 5 Application | =1.12.1 |
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Reference Links
- 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
- http://web.mit.edu/Kerberos/advisories/MITKRB5-SA-2014-001.txt
- https://rhn.redhat.com/errata/RHSA-2014-1255.html
- https://rhn.redhat.com/errata/RHSA-2014-1389.html
- https://rhn.redhat.com/errata/RHSA-2015-0439.html
Frequently Asked Questions
What is the severity of CVE-2014-4345?
CVE-2014-4345 has been rated as a medium severity vulnerability that can lead to denial of service.
How do I fix CVE-2014-4345?
To remediate CVE-2014-4345, update to MIT Kerberos 5 version 1.11.6 or later, or 1.12.2 or later.
Which versions of MIT Kerberos 5 are affected by CVE-2014-4345?
CVE-2014-4345 affects MIT Kerberos 5 versions from 1.6.x up to 1.11.x before 1.11.6 and 1.12.x before 1.12.2.
What type of attack does CVE-2014-4345 enable?
CVE-2014-4345 allows remote authenticated users to cause a denial of service.
Is CVE-2014-4345 related to buffer overflow?
Yes, CVE-2014-4345 is associated with an off-by-one error that can result in a buffer overflow.
- collector/redhat-bugzilla
- alias/CVE-2014-4345
- agent/references
- agent/type
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- agent/event
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- agent/software-canonical-lookup-request
- agent/softwarecombine
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- package-manager/redhat
- vendor/mit
- canonical/mit kerberos 5 application
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- version/mit kerberos 5 application/1.12
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