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7.5
HIGH CVSS 3.1
CVE-2019-14844
Fedora Kerberos KDC Denial of Service
Description

A flaw was found in, Fedora versions of krb5 from 1.16.1 to, including 1.17.x, in the way a Kerberos client could crash the KDC by sending one of the RFC 4556 "enctypes". A remote unauthenticated user could use this flaw to crash the KDC.

INFO

Published Date :

Sept. 26, 2019, 12:15 p.m.

Last Modified :

Nov. 21, 2024, 4:27 a.m.

Remotely Exploit :

Yes !

Source :

[email protected]
Affected Products

The following products are affected by CVE-2019-14844 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Fedoraproject fedora
1 Mit kerberos_5
: Total Affected Vendor : 2 | Products : 2
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 2.0 MEDIUM [email protected]
CVSS 3.0 HIGH [email protected]
CVSS 3.1 HIGH [email protected]
Solution
The Kerberos KDC is vulnerable to a denial-of-service vulnerability.
  • Update the krb5 package.
  • Restart the Kerberos KDC service.
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2019-14844.

URL Resource
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14844 Issue Tracking Patch Third Party Advisory
https://github.com/krb5/krb5/pull/981 Patch Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/54ZYKEJZ77BXZWGF4NEVKC33ESVROEYC/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/N4LS5PIJOCNOUZGLO2OBT6GY334PUOSW/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TDE2QOKK4I4TV4WV74ZQWICZ4HJN2MOK/
https://security.netapp.com/advisory/ntap-20220325-0003/ Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14844 Issue Tracking Patch Third Party Advisory
https://github.com/krb5/krb5/pull/981 Patch Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/54ZYKEJZ77BXZWGF4NEVKC33ESVROEYC/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/N4LS5PIJOCNOUZGLO2OBT6GY334PUOSW/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TDE2QOKK4I4TV4WV74ZQWICZ4HJN2MOK/
https://security.netapp.com/advisory/ntap-20220325-0003/ Third Party Advisory
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2019-14844 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2019-14844 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2019-14844 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2019-14844 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14844
    Added Reference https://github.com/krb5/krb5/pull/981
    Added Reference https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/54ZYKEJZ77BXZWGF4NEVKC33ESVROEYC/
    Added Reference https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/N4LS5PIJOCNOUZGLO2OBT6GY334PUOSW/
    Added Reference https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TDE2QOKK4I4TV4WV74ZQWICZ4HJN2MOK/
    Added Reference https://security.netapp.com/advisory/ntap-20220325-0003/
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Feb. 12, 2023

    Action Type Old Value New Value
    Removed Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/54ZYKEJZ77BXZWGF4NEVKC33ESVROEYC/ [Mailing List, Vendor Advisory]
    Removed Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/N4LS5PIJOCNOUZGLO2OBT6GY334PUOSW/ [Mailing List, Vendor Advisory]
    Removed Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/TDE2QOKK4I4TV4WV74ZQWICZ4HJN2MOK/ [Mailing List, Vendor Advisory]
    Added Reference https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/N4LS5PIJOCNOUZGLO2OBT6GY334PUOSW/ [No Types Assigned]
    Added Reference https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TDE2QOKK4I4TV4WV74ZQWICZ4HJN2MOK/ [No Types Assigned]
    Added Reference https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/54ZYKEJZ77BXZWGF4NEVKC33ESVROEYC/ [No Types Assigned]
  • Modified Analysis by [email protected]

    May. 24, 2022

    Action Type Old Value New Value
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/54ZYKEJZ77BXZWGF4NEVKC33ESVROEYC/ Vendor Advisory https://lists.fedoraproject.org/archives/list/[email protected]/message/54ZYKEJZ77BXZWGF4NEVKC33ESVROEYC/ Mailing List, Vendor Advisory
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/N4LS5PIJOCNOUZGLO2OBT6GY334PUOSW/ Vendor Advisory https://lists.fedoraproject.org/archives/list/[email protected]/message/N4LS5PIJOCNOUZGLO2OBT6GY334PUOSW/ Mailing List, Vendor Advisory
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/TDE2QOKK4I4TV4WV74ZQWICZ4HJN2MOK/ Vendor Advisory https://lists.fedoraproject.org/archives/list/[email protected]/message/TDE2QOKK4I4TV4WV74ZQWICZ4HJN2MOK/ Mailing List, Vendor Advisory
    Changed Reference Type https://security.netapp.com/advisory/ntap-20220325-0003/ No Types Assigned https://security.netapp.com/advisory/ntap-20220325-0003/ Third Party Advisory
  • CVE Modified by [email protected]

    Mar. 25, 2022

    Action Type Old Value New Value
    Added Reference https://security.netapp.com/advisory/ntap-20220325-0003/ [No Types Assigned]
  • Modified Analysis by [email protected]

    Oct. 16, 2020

    Action Type Old Value New Value
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/54ZYKEJZ77BXZWGF4NEVKC33ESVROEYC/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/54ZYKEJZ77BXZWGF4NEVKC33ESVROEYC/ Vendor Advisory
    Removed CWE NIST CWE-20
    Added CWE NIST NVD-CWE-Other
    Removed CPE Configuration OR *cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
    Changed CPE Configuration OR *cpe:2.3:a:mit:kerberos_5:*:*:*:*:*:*:*:* versions from (including) 5-1.16.1 up to (including) 5-1.17 OR *cpe:2.3:a:mit:kerberos_5:*:*:*:*:*:*:*:* versions from (including) 1.16.1 up to (including) 1.17.1
    Changed CPE Configuration OR *cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:* OR *cpe:2.3:o:fedoraproject:fedora:29:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*
  • CPE Deprecation Remap by [email protected]

    Jan. 21, 2020

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:mit:kerberos:*:*:*:*:*:*:*:* versions from (including) 5-1.16.1 from (including) 5-1.17 OR *cpe:2.3:a:mit:kerberos_5:*:*:*:*:*:*:*:* versions from (including) 5-1.16.1 from (including) 5-1.17
  • CVE Modified by [email protected]

    Oct. 10, 2019

    Action Type Old Value New Value
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/54ZYKEJZ77BXZWGF4NEVKC33ESVROEYC/ [No Types Assigned]
  • CVE Modified by [email protected]

    Oct. 09, 2019

    Action Type Old Value New Value
    Added CVSS V3 Red Hat, Inc. AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
    Added CWE Red Hat, Inc. CWE-628
  • Initial Analysis by [email protected]

    Oct. 01, 2019

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:N/I:N/A:P)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
    Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14844 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14844 Issue Tracking, Patch, Third Party Advisory
    Changed Reference Type https://github.com/krb5/krb5/pull/981 No Types Assigned https://github.com/krb5/krb5/pull/981 Patch, Third Party Advisory
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/N4LS5PIJOCNOUZGLO2OBT6GY334PUOSW/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/N4LS5PIJOCNOUZGLO2OBT6GY334PUOSW/ Vendor Advisory
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/TDE2QOKK4I4TV4WV74ZQWICZ4HJN2MOK/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/TDE2QOKK4I4TV4WV74ZQWICZ4HJN2MOK/ Vendor Advisory
    Added CWE CWE-20
    Added CPE Configuration OR *cpe:2.3:a:mit:kerberos:*:*:*:*:*:*:*:* versions from (including) 5-1.16.1 up to (including) 5-1.17
    Added CPE Configuration OR *cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
    Added CPE Configuration OR *cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Sep. 30, 2019

    Action Type Old Value New Value
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/N4LS5PIJOCNOUZGLO2OBT6GY334PUOSW/ [No Types Assigned]
  • CVE Modified by [email protected]

    Sep. 28, 2019

    Action Type Old Value New Value
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/TDE2QOKK4I4TV4WV74ZQWICZ4HJN2MOK/ [No Types Assigned]
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
Base CVSS Score: 7.5
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact
Base CVSS Score: 7.5
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact
Base CVSS Score: 5
Access Vector
Access Complexity
Authentication
Confidentiality Impact
Integrity Impact
Availability Impact
Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

11.70 }} 2.36%

score

0.93288

percentile