krb5: krb5 may accept authdata checksums with low-entropy derived keys (MITKRB5-SA-2010-007)

MIT Kerberos 5 aka krb5 1.8.x through 1.8.3 does not reject RC4 key-derivation checksums, which might allow remote authenticated users to forge a 1 AD-SIGNEDPATH or 2 AD-KDC-ISSUED signature, and possibly gain privileges, by leveraging the small key space that results from certain one-byte...

krb5: incorrect acceptance of certain checksums (MITKRB5-SA-2010-007)

MIT Kerberos 5 aka krb5 1.3.x, 1.4.x, 1.5.x, 1.6.x, 1.7.x, and 1.8.x through 1.8.3 does not properly determine the acceptability of checksums, which might allow remote attackers to modify user-visible prompt text, modify a response to a Key Distribution Center KDC, or forge a KRB-SAFE message via...

krb5 -- unkeyed PAC checksum handling vulnerability

The MIT Kerberos team reports: MIT krb5 incorrectly accepts an unkeyed checksum for PAC signatures. An authenticated remote attacker can forge PACs if using a KDC that does not filter client-provided PAC data. This can result in privilege escalation against a service that relies on PAC contents t...

krb5 -- client impersonation vulnerability

The MIT Kerberos team reports: MIT krb5 KDC may issue tickets not requested by a client, based on an attacker-chosen KrbFastArmoredReq. An authenticated remote attacker that controls a legitimate service principal could obtain a valid service ticket to itself containing valid KDC-generated...

krb5 -- multiple checksum handling vulnerabilities

The MIT Kerberos team reports: MIT krb incorrectly accepts an unkeyed checksum with DES session keys for version 2 RFC 4121 of the GSS-API krb5 mechanism. An unauthenticated remote attacker can forge GSS tokens that are intended to be integrity-protected but unencrypted, if the targeted...

krb5 -- multiple checksum handling vulnerabilities

The MIT Kerberos team reports: MIT krb5 clients incorrectly accept an unkeyed checksums in the SAM-2 preauthentication challenge. An unauthenticated remote attacker could alter a SAM-2 challenge, affecting the prompt text seen by the user or the kind of response sent to the KDC. Under some...

Important: Red Hat Security Advisory: krb5 security update

Updated krb5 packages that fix one security issue are now available for Red Hat Enterprise Linux 6. The Red Hat Security Response Team has rated this update as having important security impact. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is...

Ubuntu Update for krb5 vulnerability USN-999-1

Ubuntu Update for Linux kernel vulnerabilities USN-999-1 OpenVAS Vulnerability Test $Id: gbubuntuUSN9991.nasl 7965 2017-12-01 07:38:25Z santu $ Ubuntu Update for krb5 vulnerability USN-999-1 Authors: System Generated Check Copyright: Copyright c 2010 Greenbone Networks GmbH,...

Ubuntu: Security Advisory (USN-999-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2010 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

Fedora 14 : krb5-1.8.2-6.fc14 (2010-15803)

This update incorporates the upstream patch to fix an uninitialized pointer crash in the KDC's authorization data handling routines CVE-2010-1322. It also pulls up a few backports and compilation flag changes from F15. Note that Tenable Network Security has extracted the preceding description blo...

Mandriva Linux Security Advisory : krb5 (MDVSA-2010:202)

A vulnerability was discovered and corrected in krb5 : The mergeauthdata function in kdcauthdata.c in the Key Distribution Center KDC in MIT Kerberos 5 aka krb5 1.8.x before 1.8.4 does not properly manage an index into an authorization-data list, which allows remote attackers to cause a denial of...

CVE-2010-1322

The mergeauthdata function in kdcauthdata.c in the Key Distribution Center KDC in MIT Kerberos 5 aka krb5 1.8.x before 1.8.4 does not properly manage an index into an authorization-data list, which allows remote attackers to cause a denial of service daemon crash, or possibly obtain sensitive...

CVE-2010-1322

The mergeauthdata function in kdcauthdata.c in the Key Distribution Center KDC in MIT Kerberos 5 aka krb5 1.8.x before 1.8.4 does not properly manage an index into an authorization-data list, which allows remote attackers to cause a denial of service daemon crash, or possibly obtain sensitive...

MITKRB5-SA-2010-006 [CVE-2010-1322] KDC uninitialized pointer crash in authorization data handling

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 MITKRB5-SA-2010-006 MIT krb5 Security Advisory 2010-006 Original release: 2010-10-05 Topic: KDC uninitialized pointer crash in authorization data handling CVE-2010-1322 CVSSv2 Vector: AV:N/AC:L/Au:S/C:P/I:P/A:C/E:H/RL:OF/RC:C CVSSv2 Base Score: 8 Acce...

Ubuntu 10.04 LTS / 10.10 : krb5 vulnerability (USN-999-1)

Mike Roszkowski discovered that the Kerberos KDC did not correctly validate the contents of certain messages. If an authenticated remote attacker sent specially crafted TGS requests, the KDC service would crash, leading to a denial of service. Note that Tenable Network Security has extracted the...

USN-999-1: Kerberos vulnerability

Mike Roszkowski discovered that the Kerberos KDC did not correctly validate the contents of certain messages. If an authenticated remote attacker sent specially crafted TGS requests, the KDC service would crash, leading to a denial of service...

MIT Kerberos KDC Ticket Validation Double Free Memory Corruption (CVE-2010-1320)

Kerberos is a protocol that allows for the negotiation of an authenticated, and optionally encrypted, communication channel between two points on a network. MIT Kerberos V5 is an implementation of this protocol. A memory corruption vulnerability exists in the MIT Kerberos KDC server. The...

Fedora 12 : krb5-1.7.1-2.fc12 (2010-1722)

This update adds the upstream patch to avoid a potential denial of service in the KDC in versions 1.7 and later CVE-2010-0283. It obsoletes a previous pending update to version 1.7.1, which incorporates a fix to avoid accidentally tripping account lockout logic on AD servers when the user types i...

Fedora 13 : krb5-1.7.1-8.fc13 (2010-7102)

Joel Johnson reported a possible double-free in the Kerberos KDC MITKRB5-SA-2010-004, CVE-2010-1320. This update adds the upstream fix for this bug. Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted t...

MIT Kerberos V5 KDC krb5_unparse_name Heap Overflow (CVE-2005-1175)

Kerberos is a protocol that allows for the negotiation of an authenticated, and optionally encrypted, communication channel between two points on a network. MIT Kerberos V5 is an implementation of this protocol. There exists a single byte heap overflow vulnerability in the MIT Kerberos V5 Key...