What is CVE-2018-5709?

CVE-2018-5709 is a high-severity vulnerability in Mit Kerberos, classified under Integer Overflow or Wraparound. CVSS score: 7.5/10. Published 2018-01-16.

How severe is CVE-2018-5709?

High severity. CVSS v3 base score is 7.5 out of 10.

Is CVE-2018-5709 known to be exploited?

16 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Integer overflow in Mit Kerberos

CVE-2018-5709

An issue was discovered in MIT Kerberos 5 (aka krb5) through 1.16. There is a variable "dbentry->n_key_data" in kadmin/dbutil/dump.c that can store 16-bit data but unknowingly the developer has assigned a "u4" variable to it, which is for…

Vulnerability class: Integer Overflow

EPSS: 0.021 (79.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.

Affected products

Mit Kerberos
N/a — versions n/a

Weakness classification (CWE)

CWE-190 — Integer Overflow or Wraparound

Public proof-of-concept exploits

References

cve@mitre.org (Third Party Advisory, x_refsource_MISC)
cve@mitre.org (mailing-list, x_refsource_MLIST)

Frequently asked questions

What is CVE-2018-5709?: CVE-2018-5709 is a high-severity vulnerability in Mit Kerberos, classified under Integer Overflow or Wraparound. CVSS score: 7.5/10. Published 2018-01-16.
How severe is CVE-2018-5709?: High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2018-5709 known to be exploited?: 16 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.