CVE-2014-4344
7.8 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:N/I:N/A:C
6.3 Medium
AI Score
Confidence
Low
0.117 Low
EPSS
Percentile
95.3%
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.
Affected configurations
References
advisories.mageia.org/MGASA-2014-0345.html
aix.software.ibm.com/aix/efixes/security/nas_advisory1.asc
krbdev.mit.edu/rt/Ticket/Display.html?id=7970
lists.fedoraproject.org/pipermail/package-announce/2014-August/136360.html
rhn.redhat.com/errata/RHSA-2015-0439.html
secunia.com/advisories/59102
secunia.com/advisories/60082
secunia.com/advisories/60448
secunia.com/advisories/61051
support.f5.com/kb/en-us/solutions/public/15000/500/sol15561.html
www.debian.org/security/2014/dsa-3000
www.mandriva.com/security/advisories?name=MDVSA-2014:165
www.osvdb.org/109389
www.securityfocus.com/bid/69160
www.securitytracker.com/id/1030706
bugzilla.redhat.com/show_bug.cgi?id=1121877
exchange.xforce.ibmcloud.com/vulnerabilities/95210
github.com/krb5/krb5/commit/524688ce87a15fc75f87efc8c039ba4c7d5c197b
github.com/krb5/krb5/commit/a7886f0ed1277c69142b14a2c6629175a6331edc
Related
7.8 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:N/I:N/A:C
6.3 Medium
AI Score
Confidence
Low
0.117 Low
EPSS
Percentile
95.3%