ALT-PU-2017-1875-1

Package update samba in branch c7

Version4.4.15-alt0.M70C.1

Published2017-07-14

Max severityHIGH

Severity:

Closed issues (2)

HIGH8.1

Уязвимость функции _krb5_extract_ticket() пакета программ сетевого взаимодействия Samba, связанная с недостатком механизма проверки подлинности данных, позволяющая нарушителю получить доступ к конфиденциальным данным, нарушить их целостность, а также вызвать отказ в обслуживании

Published: 2021-03-21Modified: 2021-03-23

CVSS 3.xHIGH 8.1

CVSS:3.x/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS 2.0MEDIUM 6.8

CVSS:2.0/AV:N/AC:M/Au:N/C:P/I:P/A:P

References

CVE-2017-11103

HIGH8.1

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.

Published: 2017-07-13Modified: 2025-04-20

CVSS 2.0MEDIUM 6.8

CVSS:2.0/AV:N/AC:M/Au:N/C:P/I:P/A:P

CVSS 3.xHIGH 8.1

CVSS:3.x/CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

References