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CVE-2017-11103

CVE-2017-11103

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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 _krb5_extract_ticket() the KDC-REP service name must be obtained from the encrypted version stored in 'enc_part' 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.

CVSS 8.1 · High · EPSS 5.1% · Fix available

Published
Updated

Stack: system

Affected products and versions

  • n/a

    Versions
    • n/a: Affected

    No fix published

  • heimdal Debian:12

    Affected ranges
    • ECOSYSTEM: < 7.4.0.dfsg.1-1

    Update to 7.4.0.dfsg.1-1

  • heimdal Debian:13

    Affected ranges
    • ECOSYSTEM: < 7.4.0.dfsg.1-1

    Update to 7.4.0.dfsg.1-1

  • heimdal Debian:14

    Affected ranges
    • ECOSYSTEM: < 7.4.0.dfsg.1-1

    Update to 7.4.0.dfsg.1-1

  • samba Debian:12

    Affected ranges
    • ECOSYSTEM: < 2:4.6.5+dfsg-4

    Update to 2:4.6.5+dfsg-4

  • samba Debian:13

    Affected ranges
    • ECOSYSTEM: < 2:4.6.5+dfsg-4

    Update to 2:4.6.5+dfsg-4

  • samba Debian:14

    Affected ranges
    • ECOSYSTEM: < 2:4.6.5+dfsg-4

    Update to 2:4.6.5+dfsg-4

  • heimdal Ubuntu:14.04:LTS

    Versions
    • 1.6~git20120403+dfsg1-3ubuntu0.1
    • 1.6~git20120403+dfsg1-3ubuntu0.2
    • 1.6~git20131207+dfsg-1ubuntu1
    • 1.6~git20131207+dfsg-1ubuntu1.1
    Affected ranges
    • ECOSYSTEM: < 1.6~git20131207+dfsg-1ubuntu1.2

    Update to 1.6~git20131207+dfsg-1ubuntu1.2

  • samba Ubuntu:14.04:LTS

    Versions
    • 2:3.6.18-1ubuntu3
    • 2:4.0.10+dfsg-4ubuntu2
    • 2:4.0.13+dfsg-1ubuntu1
    • 2:4.1.3+dfsg-2ubuntu2
    • 2:4.1.3+dfsg-2ubuntu3
    • 2:4.1.3+dfsg-2ubuntu4
    • 2:4.1.3+dfsg-2ubuntu5
    • 2:4.1.6+dfsg-1ubuntu1
    • 2:4.1.6+dfsg-1ubuntu2
    • 2:4.1.6+dfsg-1ubuntu2.14.04.1
    • 2:4.1.6+dfsg-1ubuntu2.14.04.2
    • 2:4.1.6+dfsg-1ubuntu2.14.04.3
    • 2:4.1.6+dfsg-1ubuntu2.14.04.4
    • 2:4.1.6+dfsg-1ubuntu2.14.04.5
    • 2:4.1.6+dfsg-1ubuntu2.14.04.7
    • 2:4.1.6+dfsg-1ubuntu2.14.04.8
    • 2:4.1.6+dfsg-1ubuntu2.14.04.9
    • 2:4.1.6+dfsg-1ubuntu2.14.04.11
    • 2:4.1.6+dfsg-1ubuntu2.14.04.12
    • 2:4.1.6+dfsg-1ubuntu2.14.04.13
    • 2:4.3.8+dfsg-0ubuntu0.14.04.2
    • 2:4.3.9+dfsg-0ubuntu0.14.04.1
    • 2:4.3.9+dfsg-0ubuntu0.14.04.3
    • 2:4.3.11+dfsg-0ubuntu0.14.04.1
    • 2:4.3.11+dfsg-0ubuntu0.14.04.2
    • 2:4.3.11+dfsg-0ubuntu0.14.04.3
    • 2:4.3.11+dfsg-0ubuntu0.14.04.4
    • 2:4.3.11+dfsg-0ubuntu0.14.04.6
    • 2:4.3.11+dfsg-0ubuntu0.14.04.7
    • 2:4.3.11+dfsg-0ubuntu0.14.04.8
    • 2:4.3.11+dfsg-0ubuntu0.14.04.9
    Affected ranges
    • ECOSYSTEM: < 2:4.3.11+dfsg-0ubuntu0.14.04.10

    Update to 2:4.3.11+dfsg-0ubuntu0.14.04.10

  • heimdal Ubuntu:16.04:LTS

    Versions
    • 1.6~rc2+dfsg-10ubuntu1
    • 1.7~git20150920+dfsg-4ubuntu1
    Affected ranges
    • ECOSYSTEM: < 1.7~git20150920+dfsg-4ubuntu1.16.04.1

    Update to 1.7~git20150920+dfsg-4ubuntu1.16.04.1

  • samba Ubuntu:16.04:LTS

    Versions
    • 2:4.1.17+dfsg-4ubuntu2
    • 2:4.1.20+dfsg-1ubuntu1
    • 2:4.1.20+dfsg-1ubuntu2
    • 2:4.1.20+dfsg-1ubuntu3
    • 2:4.1.20+dfsg-1ubuntu5
    • 2:4.3.3+dfsg-1ubuntu1
    • 2:4.3.3+dfsg-1ubuntu2
    • 2:4.3.3+dfsg-1ubuntu3
    • 2:4.3.6+dfsg-1ubuntu1
    • 2:4.3.8+dfsg-0ubuntu1
    • 2:4.3.9+dfsg-0ubuntu0.16.04.1
    • 2:4.3.9+dfsg-0ubuntu0.16.04.2
    • 2:4.3.9+dfsg-0ubuntu0.16.04.3
    • 2:4.3.11+dfsg-0ubuntu0.16.04.1
    • 2:4.3.11+dfsg-0ubuntu0.16.04.3
    • 2:4.3.11+dfsg-0ubuntu0.16.04.5
    • 2:4.3.11+dfsg-0ubuntu0.16.04.6
    • 2:4.3.11+dfsg-0ubuntu0.16.04.7
    • 2:4.3.11+dfsg-0ubuntu0.16.04.8
    Affected ranges
    • ECOSYSTEM: < 2:4.3.11+dfsg-0ubuntu0.16.04.9

    Update to 2:4.3.11+dfsg-0ubuntu0.16.04.9

Original sources

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