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NOTICE UPDATE

NIST has updated the NVD program announcement page with additional information regarding recent concerns and the temporary delays in enrichment efforts.

CVE-2020-28196 Detail

Description

MIT Kerberos 5 (aka krb5) before 1.17.2 and 1.18.x before 1.18.3 allows unbounded recursion via an ASN.1-encoded Kerberos message because the lib/krb5/asn.1/asn1_encode.c support for BER indefinite lengths lacks a recursion limit.


Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score:  7.5 HIGH
Vector:  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H


NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.

Note: NVD Analysts have published a CVSS score for this CVE based on publicly available information at the time of analysis. The CNA has not provided a score within the CVE List.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://github.com/krb5/krb5/commit/57415dda6cf04e73ffc3723be518eddfae599bfd Patch  Third Party Advisory 
https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E
https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E
https://lists.debian.org/debian-lts-announce/2020/11/msg00011.html Mailing List  Third Party Advisory 
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/45KKOZQWIIIW5C45PJVGQ32AXBSYNBE7/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/73IGOG6CZAVMVNS4GGRMOLOZ7B6QVA7F/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KPH2V3WSQTELROZK3GFCPQDOFLKIZ6H5/
https://security.gentoo.org/glsa/202011-17 Third Party Advisory 
https://security.netapp.com/advisory/ntap-20201202-0001/ Third Party Advisory 
https://security.netapp.com/advisory/ntap-20210513-0002/ Third Party Advisory 
https://www.debian.org/security/2020/dsa-4795 Third Party Advisory 
https://www.oracle.com//security-alerts/cpujul2021.html Patch  Third Party Advisory 
https://www.oracle.com/security-alerts/cpuApr2021.html Patch  Third Party Advisory 
https://www.oracle.com/security-alerts/cpuapr2022.html Patch  Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-674 Uncontrolled Recursion cwe source acceptance level NIST  

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Change History

16 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2020-28196
NVD Published Date:
11/06/2020
NVD Last Modified:
11/06/2023
Source:
MITRE