DEBIAN-CVE-2017-11103

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Source
https://security-tracker.debian.org/tracker/CVE-2017-11103
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2017-11103.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2017-11103
Upstream
Published
2017-07-13T13:29:00Z
Modified
2025-09-30T03:54:21Z
Severity
  • 8.1 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

Heimdal before 7.4 allows remote attackers to impersonate services with Orpheus' Lyre attacks because it obtains service-principal names in a way that violates the Kerberos 5 protocol specification. In krb5extractticket() the KDC-REP service name must be obtained from the encrypted version stored in 'encpart' instead of the unencrypted version stored in 'ticket'. Use of the unencrypted version provides an opportunity for successful server impersonation and other attacks. NOTE: this CVE is only for Heimdal and other products that embed Heimdal code; it does not apply to other instances in which this part of the Kerberos 5 protocol specification is violated.

References

Affected packages

Debian:11

heimdal

Package

Name
heimdal
Purl
pkg:deb/debian/heimdal?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
7.4.0.dfsg.1-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

samba

Package

Name
samba
Purl
pkg:deb/debian/samba?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2:4.6.5+dfsg-4

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:12

heimdal

Package

Name
heimdal
Purl
pkg:deb/debian/heimdal?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
7.4.0.dfsg.1-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

samba

Package

Name
samba
Purl
pkg:deb/debian/samba?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2:4.6.5+dfsg-4

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:13

heimdal

Package

Name
heimdal
Purl
pkg:deb/debian/heimdal?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
7.4.0.dfsg.1-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

samba

Package

Name
samba
Purl
pkg:deb/debian/samba?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2:4.6.5+dfsg-4

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:14

heimdal

Package

Name
heimdal
Purl
pkg:deb/debian/heimdal?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
7.4.0.dfsg.1-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

samba

Package

Name
samba
Purl
pkg:deb/debian/samba?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2:4.6.5+dfsg-4

Ecosystem specific 

{
    "urgency": "not yet assigned"
}