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USN-940-2: Kerberos vulnerability

21 July 2010

An attacker could send crafted input to kadmind and cause it to crash.

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Releases

Packages

  • krb5 - MIT Kerberos

Details

USN-940-1 fixed vulnerabilities in Kerberos. This update provides the
corresponding updates for Ubuntu 10.04.

Original advisory details:

Joel Johnson, Brian Almeida, and Shawn Emery discovered that Kerberos
did not correctly verify certain packet structures. An unauthenticated
remote attacker could send specially crafted traffic to cause the KDC or
kadmind services to crash, leading to a denial of service. (CVE-2010-1320,
CVE-2010-1321)

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Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

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Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 10.04

In general, a standard system update will make all the necessary changes.

References

Related notices

  • USN-940-1: libkrb53, krb5, krb5-kdc, krb5-admin-server

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Further reading