krb5 1.16.x/1.17.x on Fedora KDC input validation

CVSS Meta Temp Score
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CTI Interest Score
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6.4$0-$5k0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in krb5 1.16.x/1.17.x on Fedora. This vulnerability affects unknown code of the component KDC. The manipulation results in input validation. This vulnerability is reported as CVE-2019-14844. The attack can be launched remotely. No exploit exists.

Detailsinfo

A vulnerability was found in krb5 1.16.x/1.17.x on Fedora. It has been classified as problematic. Affected is an unknown functionality of the component KDC. The manipulation with an unknown input leads to a input validation vulnerability. CWE is classifying the issue as CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. This is going to have an impact on availability. CVE summarizes:

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.

The weakness was disclosed 09/26/2019 as not defined bug report (Bugzilla). The advisory is shared for download at bugzilla.redhat.com. This vulnerability is traded as CVE-2019-14844 since 08/10/2019. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are neither technical details nor an exploit publicly available.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Name

Version

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.4

VulDB Base Score: 5.3
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Patch: github.com

Timelineinfo

08/10/2019 🔍
09/26/2019 +47 days 🔍
09/27/2019 +1 days 🔍
12/28/2023 +1553 days 🔍

Sourcesinfo

Product: github.com

Advisory: FEDORA-2019-2323661e5f
Status: Not defined
Confirmation: 🔍

CVE: CVE-2019-14844 (🔍)
GCVE (CVE): GCVE-0-2019-14844
GCVE (VulDB): GCVE-100-142332

Entryinfo

Created: 09/27/2019 08:57
Updated: 12/28/2023 12:32
Changes: 09/27/2019 08:57 (55), 09/10/2020 13:02 (1), 12/28/2023 12:32 (4)
Complete: 🔍
Cache ID: 216::103

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