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Alpine Linux: CVE-2020-28196: krb5 unbounded recursion via an ASN.1-encoded Kerberos message

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Alpine Linux: CVE-2020-28196: krb5 unbounded recursion via an ASN.1-encoded Kerberos message

Severity
5
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:P)
Published
11/06/2020
Created
11/27/2020
Added
11/26/2020
Modified
11/26/2020

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.

Solution(s)

  • alpine-linux-upgrade-krb5

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