Protect yourself against future threats.
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AUSCERT External Security Bulletin Redistribution
ESB-2019.1987
[DSA 4455-1] heimdal security update
4 June 2019
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AusCERT Security Bulletin Summary
---------------------------------
Product: heimdal
Publisher: Debian
Operating System: Debian GNU/Linux 9
Impact/Access: Provide Misleading Information -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2019-12098 CVE-2018-16860
Reference: ESB-2019.1803
ESB-2019.1742
ESB-2019.1707.2
ESB-2019.1702
Original Bulletin:
http://www.debian.org/security/2019/dsa-4455
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Debian Security Advisory DSA-4455-1 security@debian.org
https://www.debian.org/security/ Salvatore Bonaccorso
June 03, 2019 https://www.debian.org/security/faq
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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: debian-security-announce@lists.debian.org
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