Debian DLA-1027-1 : heimdal security update (Orpheus' Lyre)

high Nessus Plugin ID 101553
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The remote Debian host is missing a security update.


Jeffrey Altman, Viktor Duchovni and Nico Williams identified a mutual authentication bypass vulnerability in Heimdal Kerberos. Also known as Orpheus' Lyre, this vulnerability could be used by an attacker to mount a service impersonation attack on the client if he's on the network path between the client and the service.

More details can be found on the vulnerability website (

For Debian 7 'Wheezy', these problems have been fixed in version 1.6~git20120403+dfsg1-2+deb7u1.

We recommend that you upgrade your heimdal packages.

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.


Upgrade the affected packages.

See Also

Plugin Details

Severity: High

ID: 101553

File Name: debian_DLA-1027.nasl

Version: 3.7

Type: local

Agent: unix

Published: 7/17/2017

Updated: 1/11/2021

Dependencies: ssh_get_info.nasl

Risk Information


Risk Factor: Medium

Score: 5.9


Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

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

Temporal Vector: E:U/RL:OF/RC:C


Risk Factor: High

Base Score: 8.1

Temporal Score: 7.1

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:heimdal-clients, p-cpe:/a:debian:debian_linux:heimdal-clients-x, p-cpe:/a:debian:debian_linux:heimdal-dbg, p-cpe:/a:debian:debian_linux:heimdal-dev, p-cpe:/a:debian:debian_linux:heimdal-docs, p-cpe:/a:debian:debian_linux:heimdal-kcm, p-cpe:/a:debian:debian_linux:heimdal-kdc, p-cpe:/a:debian:debian_linux:heimdal-multidev, p-cpe:/a:debian:debian_linux:heimdal-servers, p-cpe:/a:debian:debian_linux:heimdal-servers-x, p-cpe:/a:debian:debian_linux:libasn1-8-heimdal, p-cpe:/a:debian:debian_linux:libgssapi3-heimdal, p-cpe:/a:debian:debian_linux:libhcrypto4-heimdal, p-cpe:/a:debian:debian_linux:libhdb9-heimdal, p-cpe:/a:debian:debian_linux:libheimbase1-heimdal, p-cpe:/a:debian:debian_linux:libheimntlm0-heimdal, p-cpe:/a:debian:debian_linux:libhx509-5-heimdal, p-cpe:/a:debian:debian_linux:libkadm5clnt7-heimdal, p-cpe:/a:debian:debian_linux:libkadm5srv8-heimdal, p-cpe:/a:debian:debian_linux:libkafs0-heimdal, p-cpe:/a:debian:debian_linux:libkdc2-heimdal, p-cpe:/a:debian:debian_linux:libkrb5-26-heimdal, p-cpe:/a:debian:debian_linux:libotp0-heimdal, p-cpe:/a:debian:debian_linux:libroken18-heimdal, p-cpe:/a:debian:debian_linux:libsl0-heimdal, p-cpe:/a:debian:debian_linux:libwind0-heimdal, cpe:/o:debian:debian_linux:7.0

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Ease: No known exploits are available

Patch Publication Date: 7/14/2017

Reference Information

CVE: CVE-2017-11103