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Debian: DSA-4455-1 High: Heimdal Man-in-the-Middle Risks

debian
Calendar Grey June 3, 2019
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The latest Heimdal security patch resolves significant vulnerabilities in Debian systems, bolstering defense against interception threats.
Several vulnerabilities were discovered in Heimdal, an implementation of Kerberos 5 that aims to be compatible with MIT Kerberos
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Topics Covered

security advisory Debian authentication man-in-the-middle heimdal

Summary

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

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/source-package/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/



Package: heimdal
CVE ID: CVE-2018-16860 CVE-2019-12098

Topics%20covered

Topics Covered

security advisory Debian authentication man-in-the-middle heimdal

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