ALT Linux Team

Package krb5 update in c8.1 on 2018-12-18

ALT-PU-2018-2872-1

Package krb5 updated to version 1.14.6-alt1 for branch c8.1 in task 216964.

Closed vulnerabilities

Published: 2016-08-01
Modified: 2025-04-12

CVE-2016-3120

The validate_as_request function in kdc_util.c in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) before 1.13.6 and 1.4.x before 1.14.3, when restrict_anonymous_to_tgt is enabled, uses an incorrect client data structure, which allows remote authenticated users to cause a denial of service (NULL pointer dereference and daemon crash) via an S4U2Self request.

Severity: MEDIUM (4.0) Vector: AV:N/AC:L/Au:S/C:N/I:N/A:P
Severity: MEDIUM (6.5) Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
References:
Published: 2017-08-09
Modified: 2025-04-20

CVE-2017-11368

In MIT Kerberos 5 (aka krb5) 1.7 and later, an authenticated attacker can cause a KDC assertion failure by sending invalid S4U2Self or S4U2Proxy requests.

Severity: MEDIUM (4.0) Vector: AV:N/AC:L/Au:S/C:N/I:N/A:P
Severity: MEDIUM (6.5) Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
References:
Published: 2017-09-13
Modified: 2025-04-20

CVE-2017-11462

Double free vulnerability in MIT Kerberos 5 (aka krb5) allows attackers to have unspecified impact via vectors involving automatic deletion of security contexts on error.

Severity: HIGH (7.5) Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P
Severity: CRITICAL (9.8) Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
References:
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Version: 2.1.2
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