MIT Kerberos 5 up to 1.17.1/1.18.2 ASN.1 asn1_encode.c recursion

CVSS Meta Temp Score
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CTI Interest Score
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5.4$0-$5k0.00

Summaryinfo

A vulnerability has been found in MIT Kerberos 5 up to 1.17.1/1.18.2 and classified as problematic. This affects an unknown function of the file lib/krb5/asn.1/asn1_encode.c of the component ASN.1 Handler. The manipulation leads to recursion. This vulnerability is uniquely identified as CVE-2020-28196. No exploit exists. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in MIT Kerberos 5 up to 1.17.1/1.18.2 (Network Authentication Software). It has been rated as problematic. This issue affects an unknown part of the file lib/krb5/asn.1/asn1_encode.c of the component ASN.1 Handler. The manipulation with an unknown input leads to a recursion vulnerability. Using CWE to declare the problem leads to CWE-674. The product does not properly control the amount of recursion that takes place, consuming excessive resources, such as allocated memory or the program stack. Impacted is availability.

The weakness was disclosed 11/06/2020 as 57415dda6cf04e73ffc3723be518eddfae599bfd. It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2020-28196. Technical details of the vulnerability are known, but there is no available exploit.

Upgrading to version 1.17.2 or 1.18.3 eliminates this vulnerability.

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Productinfo

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.4

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Recursion
CWE: CWE-674 / CWE-404
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: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Kerberos 5 1.17.2/1.18.3

Timelineinfo

11/03/2020 🔍
11/06/2020 +3 days 🔍
11/06/2020 +0 days 🔍
12/03/2025 +1853 days 🔍

Sourcesinfo

Vendor: mit.edu

Advisory: 57415dda6cf04e73ffc3723be518eddfae599bfd
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2020-28196 (🔍)
GCVE (CVE): GCVE-0-2020-28196
GCVE (VulDB): GCVE-100-164447

Entryinfo

Created: 11/06/2020 17:37
Updated: 12/03/2025 21:18
Changes: 11/06/2020 17:37 (41), 12/03/2020 11:33 (3), 12/03/2020 11:39 (18), 12/03/2025 21:18 (16)
Complete: 🔍
Cache ID: 216::103

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