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ubuntuUbuntuUSN-5849-1
HistoryFeb 08, 2023 - 12:00 a.m.

Heimdal vulnerabilities

2023-02-0800:00:00
ubuntu.com
37
ubuntu 20.04 lts
ubuntu 18.04 esm
ubuntu 16.04 esm
ubuntu 14.04 esm
heimdal
kerberos network authentication protocol
denial of service
memory management
vulnerability

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

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

7.1 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

28.7%

Releases

  • Ubuntu 20.04 LTS
  • Ubuntu 18.04 ESM
  • Ubuntu 16.04 ESM
  • Ubuntu 14.04 ESM

Packages

  • heimdal - Heimdal Kerberos Network Authentication Protocol

Details

Helmut Grohne discovered that Heimdal GSSAPI incorrectly handled logical
conditions that are related to memory management operations.
An attacker could possibly use this issue to cause a denial of service.

OSVersionArchitecturePackageVersionFilename
Ubuntu20.04noarchlibgssapi3-heimdal< 7.7.0+dfsg-1ubuntu1.4UNKNOWN
Ubuntu20.04noarchheimdal-clients< 7.7.0+dfsg-1ubuntu1.4UNKNOWN
Ubuntu20.04noarchheimdal-clients-dbgsym< 7.7.0+dfsg-1ubuntu1.4UNKNOWN
Ubuntu20.04noarchheimdal-dev< 7.7.0+dfsg-1ubuntu1.4UNKNOWN
Ubuntu20.04noarchheimdal-docs< 7.7.0+dfsg-1ubuntu1.4UNKNOWN
Ubuntu20.04noarchheimdal-kcm< 7.7.0+dfsg-1ubuntu1.4UNKNOWN
Ubuntu20.04noarchheimdal-kcm-dbgsym< 7.7.0+dfsg-1ubuntu1.4UNKNOWN
Ubuntu20.04noarchheimdal-kdc< 7.7.0+dfsg-1ubuntu1.4UNKNOWN
Ubuntu20.04noarchheimdal-kdc-dbgsym< 7.7.0+dfsg-1ubuntu1.4UNKNOWN
Ubuntu20.04noarchheimdal-multidev< 7.7.0+dfsg-1ubuntu1.4UNKNOWN
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1-10 of 1851

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

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

7.1 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

28.7%