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ubuntuUbuntuUSN-3353-3
HistoryJul 24, 2017 - 12:00 a.m.

Heimdal vulnerability

2017-07-2400:00:00
ubuntu.com
47

CVSS2

6.8

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:P/I:P/A:P

CVSS3

8.1

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

AI Score

8.2

Confidence

High

EPSS

0.047

Percentile

92.7%

Releases

  • Ubuntu 12.04

Packages

  • heimdal - Heimdal Kerberos Network Authentication Protocol

Details

USN-3353-1 fixed a vulnerability in Heimdal. This update provides
the corresponding updade for Ubuntu 12.04 ESM.

Original advisory details:

Jeffrey Altman, Viktor Dukhovni, and Nicolas Williams discovered
that Heimdal clients incorrectly trusted unauthenticated portions
of Kerberos tickets. A remote attacker could use this to impersonate
trusted network services or perform other attacks.

OSVersionArchitecturePackageVersionFilename
Ubuntu12.04noarchlibkrb5-26-heimdal<Β 1.6~git20120311.dfsg.1-2ubuntu0.2UNKNOWN
Ubuntu12.04noarchheimdal-clients<Β 1.6~git20120311.dfsg.1-2ubuntu0.2UNKNOWN
Ubuntu12.04noarchheimdal-clients-dbgsym<Β 1.6~git20120311.dfsg.1-2ubuntu0.2UNKNOWN
Ubuntu12.04noarchheimdal-clients-x<Β 1.6~git20120311.dfsg.1-2ubuntu0.2UNKNOWN
Ubuntu12.04noarchheimdal-clients-x-dbgsym<Β 1.6~git20120311.dfsg.1-2ubuntu0.2UNKNOWN
Ubuntu12.04noarchheimdal-dbg<Β 1.6~git20120311.dfsg.1-2ubuntu0.2UNKNOWN
Ubuntu12.04noarchheimdal-dev<Β 1.6~git20120311.dfsg.1-2ubuntu0.2UNKNOWN
Ubuntu12.04noarchheimdal-kcm<Β 1.6~git20120311.dfsg.1-2ubuntu0.2UNKNOWN
Ubuntu12.04noarchheimdal-kcm-dbgsym<Β 1.6~git20120311.dfsg.1-2ubuntu0.2UNKNOWN
Ubuntu12.04noarchheimdal-kdc<Β 1.6~git20120311.dfsg.1-2ubuntu0.2UNKNOWN
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CVSS2

6.8

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:P/I:P/A:P

CVSS3

8.1

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

AI Score

8.2

Confidence

High

EPSS

0.047

Percentile

92.7%