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Debian LTS Advisory ([SECURITY] [DLA 1643-1] krb5 security update)
Information
Severity
Severity
Medium
Family
Family
Debian Local Security Checks
CVSSv2 Base
CVSSv2 Base
6.5
CVSSv2 Vector
CVSSv2 Vector
AV:N/AC:L/Au:S/C:P/I:P/A:P
Solution Type
Solution Type
Vendor Patch
Created
Created
5 years ago
Modified
Modified
5 years ago
Summary
krb5, a MIT Kerberos implementation, had several flaws in LDAP DN checking, which could be used to circumvent a DN containership check by supplying special parameters to some calls. Further an attacker could crash the KDC by making S4U2Self requests.
Affected Software
Affected Software
krb5 on Debian Linux
Detection Method
Detection Method
This check tests the installed software version using the apt package manager.
Solution
Solution
For Debian 8 'Jessie', these problems have been fixed in version 1.12.1+dfsg-19+deb8u5. We recommend that you upgrade your krb5 packages.