Debian Security Advisory

DLA-340-1 krb5 -- LTS security update

Date Reported:
07 Nov 2015
Affected Packages:
Security database references:
In Mitre's CVE dictionary: CVE-2015-2695, CVE-2015-2697.
More information:

Several vulnerabilities were discovered in krb5, the MIT implementation of Kerberos. The Common Vulnerabilities and Exposures project identifies the following problems:

  • CVE-2015-2695

    It was discovered that applications which call gss_inquire_context() on a partially-established SPNEGO context can cause the GSS-API library to read from a pointer using the wrong type, leading to a process crash.

  • CVE-2015-2697

    It was discovered that the build_principal_va() function incorrectly handles input strings. An authenticated attacker can take advantage of this flaw to cause a KDC to crash using a TGS request with a large realm field beginning with a null byte.

For the oldoldstable distribution (squeeze), these problems have been fixed in version 1.8.3+dfsg-4squeeze10.

We recommend that you upgrade your krb5 packages.