CVE-2014-4344

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Summary

CVECVE-2014-4344
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2014-08-14 05:01:49 UTC
Updated2026-05-06 22:30:45 UTC
DescriptionThe acc_ctx_cont function in the SPNEGO acceptor in lib/gssapi/spnego/spnego_mech.c in MIT Kerberos 5 (aka krb5) 1.5.x through 1.12.x before 1.12.2 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via an empty continuation token at a certain point during a SPNEGO negotiation.

Risk And Classification

Primary CVSS: v2.0 7.8 from [email protected]

AV:N/AC:L/Au:N/C:N/I:N/A:C

Problem Types: CWE-476 | n/a

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Complete

AV:N/AC:L/Au:N/C:N/I:N/A:C

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Debian Debian Linux 7.0 All All All
Application Mit Kerberos 5 1.10 All All All
Application Mit Kerberos 5 1.10.1 All All All
Application Mit Kerberos 5 1.10.2 All All All
Application Mit Kerberos 5 1.10.3 All All All
Application Mit Kerberos 5 1.10.4 All All All
Application Mit Kerberos 5 1.11 All All All
Application Mit Kerberos 5 1.11.1 All All All
Application Mit Kerberos 5 1.11.2 All All All
Application Mit Kerberos 5 1.11.3 All All All
Application Mit Kerberos 5 1.11.4 All All All
Application Mit Kerberos 5 1.11.5 All All All
Application Mit Kerberos 5 1.12 All All All
Application Mit Kerberos 5 1.12.1 All All All
Operating System Redhat Enterprise Linux Desktop 7.0 All All All
Operating System Redhat Enterprise Linux Hpc Node 7.0 All All All
Operating System Redhat Enterprise Linux Server 7.0 All All All
Operating System Redhat Enterprise Linux Workstation 7.0 All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
MIT Kerberos Multiple Memory Errors Let Remote Users Deny Service - SecurityTracker af854a3a-2127-422b-91ae-364da2661108 www.securitytracker.com
Security Advisory SA60082 - SUSE update for krb5 - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com
Debian -- Security Information -- DSA-3000-1 krb5 af854a3a-2127-422b-91ae-364da2661108 www.debian.org Third Party Advisory
IBM X-Force Exchange af854a3a-2127-422b-91ae-364da2661108 exchange.xforce.ibmcloud.com
aix.software.ibm.com/aix/efixes/security/nas_advisory1.asc af854a3a-2127-422b-91ae-364da2661108 aix.software.ibm.com
support.f5.com/kb/en-us/solutions/public/15000/500/sol15561.html af854a3a-2127-422b-91ae-364da2661108 support.f5.com
[SECURITY] Fedora 20 Update: krb5-1.11.5-10.fc20 af854a3a-2127-422b-91ae-364da2661108 lists.fedoraproject.org
Fix null deref in SPNEGO acceptor [CVE-2014-4344] · krb5/krb5@a7886f0 · GitHub af854a3a-2127-422b-91ae-364da2661108 github.com Issue Tracking, Patch, Third Party Advisory
Security Advisory SA59102 - Debian update for krb5 - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com
Fix null deref in SPNEGO acceptor [CVE-2014-4344] · krb5/krb5@524688c · GitHub af854a3a-2127-422b-91ae-364da2661108 github.com
Mageia Advisory: MGASA-2014-0345 - Updated krb5 package fixes security vulnerabilities af854a3a-2127-422b-91ae-364da2661108 advisories.mageia.org
www.osvdb.org/109389 af854a3a-2127-422b-91ae-364da2661108 www.osvdb.org
Security Advisory SA60448 - IBM AIX / Virtual I/O Server Kerberos GSSAPI Multiple Vulnerabilities - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com
Security Advisory SA61051 - F5 Multiple Products Kerberos GSSAPI SPNEGO NULL Pointer Dereference Vulnerability - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com
mandriva.com af854a3a-2127-422b-91ae-364da2661108 www.mandriva.com
Red Hat Customer Portal af854a3a-2127-422b-91ae-364da2661108 rhn.redhat.com Third Party Advisory
1121877 – (CVE-2014-4344) CVE-2014-4344 krb5: NULL pointer dereference flaw in SPNEGO acceptor for continuation tokens af854a3a-2127-422b-91ae-364da2661108 bugzilla.redhat.com
MIT Kerberos 5 CVE-2014-4344 NULL Pointer Dereference Remote Denial of Service Vulnerability af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com
RT/krbdev.mit.edu: Ticket #7970 NULL dereference in SPNEGO acceptor for continuation tokens [CVE-2014-4344] af854a3a-2127-422b-91ae-364da2661108 krbdev.mit.edu Issue Tracking, Third Party Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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