vulnwire
6.5med

CVE-2016-3120

The validate_as_request function in kdc_util.c in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) before 1.13.6 and 1.4.x be…

Published 10 y ago · modified 4 mo ago · JSON

CVSS
6.5
v3.0 · NVD
CISA KEV
No
not known exploited
EPSS
4.6%
percentile 92%
Public exploits
0
none known

The validate_as_request function in kdc_util.c in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) before 1.13.6 and 1.4.x before 1.14.3, when restrict_anonymous_to_tgt is enabled, uses an incorrect client data structure, which allows remote authenticated users to cause a denial of service (NULL pointer dereference and daemon crash) via an S4U2Self request.

Exploit prediction (EPSS)

4.62% probability of exploitation in the next 30 days, higher than 92% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
NVD3.06.5CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD2.04.0AV:N/AC:L/Au:S/C:N/I:N/A:P

Classification

Weakness

References

  • github.com /krb5/krb5/commit/93b4a6306a0026cf1cc31ac4bd8a49ba5d034ba7 · x_refsource_CONFIRM, x_transferred
  • securityfocus.com /bid/92132 · vdb-entry, x_refsource_BID, x_transferred
  • lists.debian.org /debian-lts-announce/2018/01/msg00040.html · mailing-list, x_refsource_MLIST, x_transferred
  • lists.opensuse.org /opensuse-updates/2016-09/msg00035.html · vendor-advisory, x_refsource_SUSE, x_transferred
  • krbdev.mit.edu /rt/Ticket/Display.html?id=8458 · x_refsource_CONFIRM, x_transferred
  • securitytracker.com /id/1036442 · vdb-entry, x_refsource_SECTRACK, x_transferred
  • web.mit.edu /kerberos/krb5-1.13/ · x_refsource_CONFIRM, x_transferred
  • rhn.redhat.com /errata/RHSA-2016-2591.html · vendor-advisory, x_refsource_REDHAT, x_transferred
  • web.mit.edu /kerberos/krb5-1.14/ · x_refsource_CONFIRM, x_transferred
  • lists.fedoraproject.org /archives/list/package-announce%40lists.fedoraproject.org/message/AWL3KYFRJIX37EAM4DKCQQIQ · vendor-advisory, x_refsource_FEDORA, x_transferred

Sources

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