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CVE-2014-4344Date: (C)2014-08-15   (M)2023-12-22


The 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.

CVSS Score and Metrics +CVSS Score and Metrics -

CVSS V2 Severity:
CVSS Score : 7.8
Exploit Score: 10.0
Impact Score: 6.9
 
CVSS V2 Metrics:
Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality: NONE
Integrity: NONE
Availability: COMPLETE
  
Reference:
SECTRACK-1030706
OSVDB-109389
SECUNIA-59102
SECUNIA-60082
SECUNIA-60448
SECUNIA-61051
BID-69160
DSA-3000
FEDORA-2014-8189
MDVSA-2014:165
RHSA-2015:0439
http://advisories.mageia.org/MGASA-2014-0345.html
http://aix.software.ibm.com/aix/efixes/security/nas_advisory1.asc
http://krbdev.mit.edu/rt/Ticket/Display.html?id=7970
http://support.f5.com/kb/en-us/solutions/public/15000/500/sol15561.html
https://bugzilla.redhat.com/show_bug.cgi?id=1121877
https://github.com/krb5/krb5/commit/524688ce87a15fc75f87efc8c039ba4c7d5c197b
https://github.com/krb5/krb5/commit/a7886f0ed1277c69142b14a2c6629175a6331edc
kerberos-cve20144344-dos(95210)

CPE    5
cpe:/o:redhat:enterprise_linux_hpc_node:7.0
cpe:/o:debian:debian_linux:7.0
cpe:/o:redhat:enterprise_linux_server:7.0
cpe:/o:redhat:enterprise_linux_workstation:7.0
...
CWE    1
CWE-476
OVAL    21
oval:org.secpod.oval:def:107333
oval:org.secpod.oval:def:601743
oval:org.secpod.oval:def:702162
oval:org.secpod.oval:def:107414
...

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