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DSA-4055 heimdal - security update

Michael Eder and Thomas Kittel discovered that Heimdal, animplementation of Kerberos 5 that aims to be compatible with MITKerberos, did not correctly handle ASN.1 data. This would allow anunauthenticated remote attacker to cause a denial of service (crash ofthe KDC daemon) by sending maliciously crafted packets.

For the stable distribution (stretch), this problem has been fixed inversion 7.1.0+dfsg-13+deb9u2.

We recommend that you upgrade your heimdal packages.

For the detailed security status of heimdal please refer toits security tracker page at:https://security-tracker.debian.org/tracker/heimdal

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