Uncontrolled Recursion Affecting krb5-libs package, versions *


Severity

Recommended
medium

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.61% (80th percentile)

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  • Snyk IDSNYK-RHEL7-KRB5LIBS-1399558
  • published26 Jul 2021
  • disclosed6 Nov 2020

Introduced: 6 Nov 2020

CVE-2020-28196  (opens in a new tab)
CWE-674  (opens in a new tab)

How to fix?

There is no fixed version for RHEL:7 krb5-libs.

NVD Description

Note: Versions mentioned in the description apply only to the upstream krb5-libs package and not the krb5-libs package as distributed by RHEL. See How to fix? for RHEL:7 relevant fixed versions and status.

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.

References

CVSS Scores

version 3.1