7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
6 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
SINGLE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:S/C:P/I:P/A:P
Debian Security Advisory DSA-4455-1 [email protected]
https://www.debian.org/security/ Salvatore Bonaccorso
June 03, 2019 https://www.debian.org/security/faq
Package : heimdal
CVE ID : CVE-2018-16860 CVE-2019-12098
Debian Bug : 928966 929064
Several vulnerabilities were discovered in Heimdal, an implementation of
Kerberos 5 that aims to be compatible with MIT Kerberos.
CVE-2018-16860
Isaac Boukris and Andrew Bartlett discovered that Heimdal was
susceptible to man-in-the-middle attacks caused by incomplete
checksum validation. Details on the issue can be found in the Samba
advisory at https://www.samba.org/samba/security/CVE-2018-16860.html
CVE-2019-12098
It was discovered that failure of verification of the PA-PKINIT-KX key
exchange client-side could permit to perform man-in-the-middle attack.
For the stable distribution (stretch), these problems have been fixed in
version 7.1.0+dfsg-13+deb9u3.
We recommend that you upgrade your heimdal packages.
For the detailed security status of heimdal please refer to its security
tracker page at:
https://security-tracker.debian.org/tracker/heimdal
Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/
Mailing list: [email protected]
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
6 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
SINGLE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:S/C:P/I:P/A:P